CAD thread 3 - Pirated SolidWorks Edition

File: 1499876148212.png (176KB, 560x530px) Image search: [Google]

176KB, 560x530px

>>34598014
>tfw there are no extant technical data packages outside of maybe a secutre military owned archive in Europe even if there were they would be like 800 pages long
I get it was a trade secret and all but it's sad we'll never see how they made everything on manual mills and jigs

File: 22.jpg (277KB, 1728x2304px) Image search: [Google]

277KB, 1728x2304px

>>34598119
Some of the components are fucking silly, man.
When's the last time you saw an ejector so unnecessarily huge before? It is its own spring.

>>34598404
I'd imagine it was becasue of the steels they had available, the spring would have to be thicker anyway so why not over build it to both increase reliability and durability?

>>34598445
I mean, it's not like they didn't have a whole bunch of coil springs in the gun already.

File: preview4.png (214KB, 1316x550px) Image search: [Google]

214KB, 1316x550px

>>34598014
Now with a lower receiver.

>>34598014
>Pirated SolidWorks Edition
Any good solidworks 2017/8 torrents?

>>34599769
Word to the wise: Never use the most recent version unless you like bugs. Wait until it has a couple service packs.

>>34599769
also wondering
probably cant run it properly with a 2620m on 4gb but i need to try

>>34599801
Well, you can post sw2007 w/ full pack if you want to.

>>34599806
Will run, but no hope for anti-aliasing mate.

File: guns.png (337KB, 766x693px) Image search: [Google]

337KB, 766x693px

>>34598014
https://www.adrive.com/public/42j3Pd/1.zip
https://www.adrive.com/public/vv2TfA/2.zip
https://www.adrive.com/public/47D2zc/3.zip
https://www.adrive.com/public/n8fTYB/4.zip
https://www.adrive.com/public/GTv8GX/5.zip
https://www.adrive.com/public/yXj7J9/6.zip
https://www.adrive.com/public/r26hGM/7.zip

Fuck I need to reupload the new shit included in these. It'll happen some day soon

Enjoy the giant dump for those of you that don't have it yet.

Also bub4555, check your burner email regarding that M2 trunnion you wanted me to make on SW

File: 1496221041248.jpg (158KB, 550x621px) Image search: [Google]

158KB, 550x621px

Does anyone have any tips for learning to think in 3 dimensional space? It's starting to frustrate me how I can't draft for shit and I want to learn how to hand draft first.

>>34600302
>Does anyone have any tips for learning to think in 3 dimensional space? It's starting to frustrate me how I can't draft for shit and I want to learn how to hand draft first.

Unironically try Sketchup. It's cheap, but the simplicity of its tools will get you used to thinking about drawing 2D objects and turning them into 3D shapes. Do it enough and your mind should start to pick up on what you're putting down.

>>34600337
Thanks, this won't give me any bad habits for actual CAD, right?

>>34600302
I originally learned SW by having one monitor making an AR15 lower at 1/4 the speed and replicating it on another monitor. You'll need to realize that you have to refer to multiple views when trying to replicate stuff, not everything is spelled out for you as easily as you'd hope. Sometimes that means referring back to other pages of drawings to get dimensions. One drawing that helped me out a lot was making the M60 trunnion in CAD from one of >>34600039's posts

File: orthographic drawing practice.jpg (489KB, 960x727px) Image search: [Google]

489KB, 960x727px

>>34600302
Google "Orthographic drawing practice". You'll get a lot of things like this. Try to draw the front, top and side views for these. If you post them here, I'll review them for you.

>>34600302

>Only wants to do 3 dimensions, when study has shown the brain can do 11.

Step your game up.

>>34600302
>>34600365
The goal of doing these is to train yourself to take the relatively simple parts illustrated in isometric, forming a 3D representation of them in your mind and then rotating them around as necessary to create the orthographic views.
The next step would be to take front/top/side views and create the isometric drawing based off them. Once you've got that down pat, it kinda just snowballs.

>>34600361
You'll have to relearn CAD from the ground up. You're better off just doing it by hand for now or going straight to parametric.

>>34600361
>Sketchup
>Bad habits
You'll get spoiled. Make sure everything's defined when you start real CAD

File: 56c13cb1c2396d7553b4df12ddb37e68e26d822176276deb383c8be91605406d.png (344KB, 900x862px) Image search: [Google]

344KB, 900x862px

>>34600302
>posts the rat bastard Comey
No, you get a fuck you

>>34598014
Nice to see your dedication OP.

>>34600443
If you do everything in Sketchup by doing everything with line work, you feel spoiled moving up to AutoCAD.

File: t45.jpg (347KB, 672x812px) Image search: [Google]

347KB, 672x812px

Any good places to pirate solidworks?

>>34600465
AutoCAD is shit.

>>34600491
>AutoCAD is shit.
It really is. Parametric stuff is ridiculously easy to use by comparison, but I think it was worth learning.

File: latest.jpg (191KB, 1439x1080px) Image search: [Google]

191KB, 1439x1080px

>>34600462
My bad, these fucking cucks look all alike...

Ok, go to libgen.io and search for Technical Drawing with Engineering Graphics

File: 1184961_527852110603186_1912325441_n.jpg (9KB, 310x234px) Image search: [Google]

9KB, 310x234px

>>34600490
Dude if you can't figure that out yourself you have no fucking business using any software beyond Minesweeper.

>>34600363
This will probably toast my toaster but that does make sense.
>>34600365
>>34600409
>it took a minute to figure out they are not related at all
I'm so fucking stupid but thanks.
>>34600462
the picture unsettles me and gives me a similar sensation of disgust and incomprehensible horror of looking at blank drafting sheet

>>34600569
Out of curiosity, are you one of those people who gets headaches when you watch a stereoscopic movie?

File: pf.gif (989KB, 426x213px) Image search: [Google]

989KB, 426x213px

>>34600039
>The public file you are trying to download is associated with a non-valid account.

>>34600558
What the fuck is minesweeper?

>>34600830
No, just painfully stupid.

>>34600962
You're joking, right?
https://www.youtube.com/watch?v=DebYAJ3HCUc

File: 1438213111248.jpg (89KB, 612x612px) Image search: [Google]

89KB, 612x612px

>>34600962
>What the fuck is minesweeper?

you have to be at least 12yrs old to post here

http://www.ddgt.net/student_resources_assignments.html#ddgt110


first took this acad class he posts the assignments for practice. i think my SW class did the same. ill post if anyones interested

>>34601038
What book do these exercises come from?

File: McGraw Hill Engineering Drawing and Design.jpg (27KB, 260x329px) Image search: [Google]

27KB, 260x329px

>>34601764
I haven't looked at the exercises he posted, but I CAN suggest this book to you.

File: 1499698861362.jpg (54KB, 700x700px) Image search: [Google]

54KB, 700x700px

>>34601818

>>34600039
How do you add more than 1 model?

Everytime I try I get suppressed parts

>>34601905
That doesn't have exercises for him to do, though.

>>34601994
That doesn't mean he shouldn't have it.

File: 1497312396639.gif (44KB, 400x204px) Image search: [Google]

44KB, 400x204px

>>34601987
>Windows XP

>>34602012
>implying XP isn't the superior OS
get the fuck outta here

>>34602176
XP is no longer supported at all. Any security breeches that have been or are discovered since they stopped supporting it will not be patched.

Win 7, Anon. Win 7.

>>34602183
>calls out a dead OS with no support over security issues
>recommends the still birth that was Windows 7
Are you alright, anon? Do you need a doctor?

>>34602202
VISTA was a piece of crap. Win7 is the version that fixed shit. Win8 is when they decided everything was a tablet and people hated it, they released 8.1 to add a fucking start button and then decided that 8.1 was actually 9, so now they're pushing Win10 which is their move towards cross-platform shit.

Win7 is pretty fucking solid.

File: 1493574486079.png (239KB, 480x451px) Image search: [Google]

239KB, 480x451px

>>34600962
you should be ashamed of yourself

>>34602221
Win "upgrade to ten now or we brick your computer and this time we mean it" 7? Are you at least bypassing the Windows authentication?

>>34600039

Cant download 1 because it has that content owner account is invalid. ¿Por qué?

Is that guy who was talking about manual action pistols last thread still around?

I want to find out just what the hell kind of weird, retarded laws/restrictions he's trying to wiggle around.

What guns are actually worth 3d printing?

I'm just printing a stock, as my z-axis upgrade let's me do 150x150x240 now... But that new size would work for a lower

>>34599769
Check out rutracker

File: Lost PLA 10-22.png (3MB, 1194x1440px) Image search: [Google]

3MB, 1194x1440px

>>34602784
Fully 3D print? Not many. Really you should look at it as which COMPONENTS are worth printing.
That said, the viability of printing as a process is further expanded if you know how to cast.

>>34602845

Is that a downloadable model?

Need to print one of those

>>34602845
>using a 3D printer to make molds for casting metal
Never even considered this, now I'm actually interested in getting a 3D printer.

>>34602990
>>34602845
>casting aluminum

Don't use cans. Use pieces of 6061 or 7076 scrap. Using aluminum cans to cast gives you some really shitty, soft pieces.

At least 6061 and 7076 are alloys that able to be hardened. Pure aluminum doesn't work well for hardness.

>>34603040
I'll keep that in mind, sure.

I'd be able to get a steady supply of aluminium from auto parts, any idea if items like brake calipers or alternator bodies would do the trick?

File: ngnr2win.jpg (24KB, 190x247px) Image search: [Google]

24KB, 190x247px

>>34601818

>>34599801
2017 works pretty well for me.
my copy isn't pirated though.

>>34602176
>Hipster faggotry
If you want to stand out it's called Linux, otherwise upgrade your damn Windows

File: so thick.jpg (84KB, 1024x535px) Image search: [Google]

84KB, 1024x535px

>>34602751
I'm here. I want the gun to be 3D printable by a noguns. There are 3D printed revolvers out already but they're bulky and fat, plus only six shooters, plus you need six identical lengths of pipe for the barrels (a small increase in complexity but still). I figured a manual action could be made slimmer and have higher capacity. Trouble is I need it to be easy for the noguns to shoot pretty fast at combat distance, which with any manual action seems unlikely. So I might try going with a small revolver build anyways.

File: uk tinder.jpg (35KB, 640x960px) Image search: [Google]

35KB, 640x960px

Bump

File: 1500089507389.jpg (316KB, 1283x922px) Image search: [Google]

316KB, 1283x922px

>>34602845
How do you cast?

File: Bambu10.png (47KB, 807x637px) Image search: [Google]

47KB, 807x637px

>>34604165
yeah windjews has 3d shit now

>>34607710
>>34607728
Is that a fucking lever delayed blowback 12 gauge?

>>34606489
>Lost PLA 10-22.png
You print the part you want to cast in PLA plastic.
PLA plastic has the special property that it burns without leaving residue. It's also dirt cheap and homebrewable.
You then, as pictured, place it in a sandbox with the pipes leading to it so air can escape out of one side and you can pour in the hot metal from the other side. Then you heat it up, however you plan to do that, liquefy, then pour in.
The PLA burns away. It is Lost. That is why you call this method Lost PLA casting.The metal fills the space that the PLA had filled before.
Then you let it cool and bam, there's your reciever.

File: 1437881589069.jpg (120KB, 751x653px) Image search: [Google]

120KB, 751x653px

>>34607739
yes

File: 1437882847227.jpg (176KB, 1010x532px) Image search: [Google]

176KB, 1010x532px

>>34607760
Cool, so like wax casting.

>>34607884
Imitation is the sincerest form of flattery.

DESU it doesn't look like these designs are functional. Just look at that trigger and sear. Or look at >>34607829 with this wicked-thin piece, or >>34607765 with no room for a recoil spring. Now >>34607781 looks promising, with the addition of a backstrap for the grip, which as it stands is akward. It looks like it would be a nice 22LR. Thanks for the dump, I'm just making some comments as to art versus practical designs.

File: weapons.png (30KB, 377x487px) Image search: [Google]

30KB, 377x487px

>>34608053
All these designs are functional. I'm astounded someone saved all of them, I did these back in my freshman year of college.

File: ddcfe7c6474cd9195ef4a4d40b721c55.jpg (516KB, 1740x1432px) Image search: [Google]

516KB, 1740x1432px

>no room for a recoil spring>>34607765
u wat m8 pic related

>>34608259
meant for>>34608053

>>34608259
>>34608276
Cheap tricks. You don't have a recoil-spring guide rod displayed, or the spring, and so I used my experience with the STEN as a guide, which has ample room for direct-blowback. I'd say that the use of a tube and a guide rod for a small spring that is recessed in the bolt adds unwarranted cost. The spring of the STEN and its variants, using the tube that the bolt rides in to keep it in place, is simply more economical and practical.

File: onshape1.png (424KB, 1679x931px) Image search: [Google]

424KB, 1679x931px

If anyones interested, try OnShape. It's similar to Solidworks but not as powerful and it's completely free. I'm working on a 9mm carbine to 3d print a prototype of. Bonus points goes to whoever can tell me something about it judging by pic related.

>>34599769
Be careful pirating SW, it's snitchware. It sends out your IP and MAC addresses and has reported people to their ISP for copyright violations before.

File: onshape2.png (248KB, 1671x918px) Image search: [Google]

248KB, 1671x918px

>>34608586
Some screenshots of other things I've doodled up.

>>34608656
If you have any familiarity whatsoever with MasterCAM, 3d modelling, or anything of the sort, OnShape will be stupid easy for you. Its a lot of fun to play with while you've got nothing better to do at work, at least.

File: onshape4.png (315KB, 1649x910px) Image search: [Google]

315KB, 1649x910px

>>34608680

>>34600363
yeah replicating other weapons especially older arms is a pain in the ass. sometimes it is easier to make your own design

>>34607818
yeah but waxx casting is a lot more precise and usually leaves pretty good finish, besides that pla looks 3d printing wich is easy, wax casting is usually made by hand

>>34607590
hey that's mine. do you have the CAD

File: ta031.jpg (51KB, 663x405px) Image search: [Google]

51KB, 663x405px

>>34607760
>>34607818

idk how that 10/22 cast was done but it doesnt look like investment casting, pic related. The 10/22 looks like it was sand cast, though the mold isnt rammed properly in the pic. Investment casting requires a step where you build a ceramic shell around the pattern and then burn out the wax (or in this case pla). If its sand cast those metal tubes at the top are pour cups/venting and the print wouldnt need to be be pla because the mold is formed in two halves around it and the pattern is removed. The mold is never damaged or destroyed with this method, which is cool, but its not really an advantage when you can just print another pattern.

The finished part looks more like investment casting to me just based on the finish. Im assuming whoever labeled that pic was confused, but I tried reverse image searching it and couldnt find the source.

>>34607710
>>34607728
>>34607751
>>34607765
>>34607781
>>34607796
>>34607818
>>34607829
>>34607847
>>34607867
>>34607884
>>34607898

Got GrabCAD/want to trade stuff? I have a lot of personal work I haven't uploaded anywhere (burner is [email protected])

>>34608974
https://www.youtube.com/watch?v=iKgA6xGDu_c

>>34608879
Even if you have the drawings, old guns guns do not translate well to modern techniques.

>>34610693
And I forgot the link.
https://www.youtube.com/watch?v=GSCk7dKSudU

>>34608480
>You don't have a recoil-spring guide rod displayed, or the spring


well there's your problem, you think your looking at a finished design and so you draw a conclusion of wht you think you know.

File: F.jpg (213KB, 1366x1402px) Image search: [Google]

213KB, 1366x1402px

>>34608960
>hey that's mine
Oliver is that you?
https://grabcad.com/library/home-made-bullpup-rifle-1

>>34608975
Those aren't mine

pic related are mine

Anyone have any resources for triggers?
I am trying to get into designing guns and am making good progress, but fuck if I understand trigger design at all.

File: 1497158743097.png (411KB, 2400x2400px) Image search: [Google]

411KB, 2400x2400px

>>34611781
http://store.steampowered.com/app/262410/World_of_Guns_Gun_Disassembly/

>>34611781
It really depends on what kind of trigger your design needs.
Single-shot with exposed hammer and Full-auto only are the easiest since they don't need a trigger disconnect. Semi-auto is more difficult and burst is the most difficult.

>>34612301
>magizine

File: 43909.jpg (23KB, 475x250px) Image search: [Google]

23KB, 475x250px

What would you guys think of a Ruger MkIV 22/45 style gun in 9mm Luger?

>>34612631
The bolt would have to be over four times heavier to safely function in straight-blowback.

>>34612631
Give me Luger aesthetics or give me death

>>34612646
Nambu asthetics

File: 1340596492626.jpg (121KB, 600x450px) Image search: [Google]

121KB, 600x450px

>>34604222
Okay, you made it seem like having a manual action was to get around some backwards firearms laws that banned repeating handguns.

The main question now is: can your friends actually buy rifled barrels for these guns? Making a rifled barrel is typically the most difficult part of doing a DIY gun, so most people just buy a rifled 'barrel blank' and modify it to suit their build, but it sounds like your friends wouldn't have access to rifled barrels.

If that's the case, you can pretty much forget about being able to hit anything accurately at combat distance.

Either way, if they have access to things like a drill, files, a bench vice, grinder, and some other basic workshop tools, they'd have a better chance of making a practical and durable handgun than they would with a 3D printed one.

Pic related is the kind of weapon you can make with basic workshop tools, which is a shitload more useful in combat than a plastic handgun.

What kind of ammunition can they get their hands on, for that matter?

>>34612645
does that make a 9mm impossible? for that gun?
I've thought something like that would be cool too, but I'm sure a gunsmith could make something like it anyways.

>>34614461
Not him, but take a look at Hi Points. They made 9mm Parabellum work in straight blowback, they just made some sacrifices, like weight and looks.

>>34612772
The barrel would be a smooth pipe, but in his case he doesn't need to hit anything more than 10-15 feet away, so I'm not worried about that. As far as tools go he'd have a Dremel, a drill, and a file, but I wouldn't trust him to build a blowback that wouldn't kill him with the first shot. Ammo is the tricky part, no access to blanks there so I'll have to figure out which metal bits need to be tacked on to brass tubing.

File: 645150_ts.jpg (160KB, 1409x1155px) Image search: [Google]

160KB, 1409x1155px

>>34614485
>>34614461
>P38 Hi Point Edition
I think this could work if you played with it a little more and shifted mass around in the slide

File: 3492a9f2c796c7523a2d0476427a0e317380a10a70cf1d5bbbee23e1594f71d9.png (140KB, 2000x639px) Image search: [Google]

140KB, 2000x639px

bump

>>34598014
>Isn't actually making new p-08s
Stop being a fag and do something with your life like make new Lugers

>>34616767
He plans on making a toggle lock pistol, unless you are willing to donate an entire bank of horizontal milling machines this is as good as it's going to get because no one is going to pay 900 bucks for a new pistol that doesn't have any providence when you can find a Waffen marked Luger for the same price.

>>34616767

I'd rather he find a way to make toggle lock work below $1,000 MSRP.

File: 1405047489862.jpg (56KB, 900x555px) Image search: [Google]

56KB, 900x555px

>>34607796
>>34607818
>>34607829
>>34608053
>DESU it doesn't look like these designs are functional.
>Just look at >>34607829 with this wicked-thin piece

pic related bro

http://www.thefirearmblog.com/blog/2014/04/21/9mm-kayaian-machine-pistol/

>>34616837
Honestly don't have much hope for it but with casting tech getting to share it is it should be entirely possible to get it about 700ish assuming he has the funds to get everything started and the market is there

>>34600039
Your account must've gotten shut down or some shit, m80, I can't see a single one of these.

>>34616792
>900
Multiply that by 5, at least.

>>34616792
>paying for nazi shit on your gun
People are still this fucking retarded

>>34602845
>tried to cast the holes too
what a tryhard, too bad it failed would've been cool

File: 1493765026290.jpg (68KB, 654x526px) Image search: [Google]

68KB, 654x526px

>>34617248
Keep your politics on /pol/ please.

>>34617248
They are historical artifacts, you dumbshit.

File: 1482884688183.jpg (174KB, 1250x1347px) Image search: [Google]

174KB, 1250x1347px

>>34616837
>>34616874
Do it. The market needs some variety again, even if its just a small production run.

>>34614732
>brass tubing for a barrel
Okay, you really need to figure out what kind of ammo your friends have access to before you start planning a gun for them, otherwise they're going to end up with a few less fingers.

File: raifu.png (138KB, 1412x475px) Image search: [Google]

138KB, 1412x475px

I think I am 2 Square for this. on the mechanical side I'm really good but the aesthetics always fly over me.

In case ur wondering its a caseless rifle prototype, more intended to be a pdw

>>34616129

Hey, you could work on making the magazine fold backwards and the pistol grip fold for a really handy little package, like that Hotchkiss folding SMG thing.

You could make the grip a sort of U shape so it can wrap around the barrel when folded, and the bottom of the magazine could hook into the wire stock.

File: 1453872141986.png (140KB, 1306x591px) Image search: [Google]

140KB, 1306x591px

>>34618036
http://tvtropes.org/pmwiki/pmwiki.php/Main/OurWeaponsWillBeBoxyInTheFuture

>>34618176
>http://tvtropes.org/pmwiki/pmwiki.php/Main/OurWeaponsWillBeBoxyInTheFuture

whelp, i guess something also to ad is that boxy stuff is really easy to machine, like real easy no need for a cnc at all just a good ol' lathe and mill

File: 1496543117142.jpg (119KB, 684x615px) Image search: [Google]

119KB, 684x615px

>>34618311
>boxy stuff is really easy to machine
geez bill you just find that out?

>>34618365
also round cylindrical stuff is easy

File: bombnado2-copy.jpg (84KB, 700x401px) Image search: [Google]

84KB, 700x401px

>>34616876
>>34616866
Yes, its me again. This is some one-off "invention" by some quack. Once it got any field use those delicate parts would be mangled beyond repair. Using such thin pieces of steel is just a piss-poor design decision.

>>34619003
Good job, smart boy, pretty boy. Here's a time machine so you can go back to 1956 and show that guy who's boss!

>>34619119
Don't be mad that steel acts as it does. Its not magic after all. And as far as a time-machine, I don't need it. That relic is a curiosity, nothing more than a musuem-piece of a failed experiment.

>>34617921
Steel tubing for the barrel, brass for the cartridge cases.

>>34619003
Lol at the fact that the wife might park over the hatch trapping you in there.
Also 2 adults and 2 kids and only a sofa and a single bench.
Don't get me started on the toilet either.

>>34617921
Putting it on the side like that makes more sense for a carbine than a handgun.

>>34620186
>tfw no toggle-locked wood furniture carbine in 6.5 swede

>>34619003
I'm glad you understand the concept of prototyping.

File: Bismark.jpg (33KB, 330x440px) Image search: [Google]

33KB, 330x440px

>>34617772
Historical artifacts of a political ideology that was not only horribly inept but also destroyed any hope of Germany being anything but a muslim caliphate.

Nazi markings on, or Nazi made, p-08 lugers are a slap in the face to the German Empire and the very idea of a europe not ruled by mudslimes and communists.

So while they are historical artifacts you'd have to be retarded to be of european ancestry and want to own any such artifacts of the one ideology that effectively destroyed the future of european culture.

File: 2.jpg (94KB, 600x604px) Image search: [Google]

94KB, 600x604px

>>34621219

File: import marks.jpg (70KB, 550x660px) Image search: [Google]

70KB, 550x660px

>>34621219
A historical artifact not being DEFACED increases its value. Whether you agree with the philosophy of the people who used and/or made said artifact does not change the reason WHY it is worth more if it hasn't been fucking desecrated.

>>34621219
>weimar germany was just Germany becoming a superpower!

>>34621252
Nobody said anything about defacing them, I just think people are idiots for paying new car money for Hitler stamps on a gun.

>>34621240
Of course I'm not well, why do you think I post here?
At least on the days when I can access the wifi at the hospital anyways.

>>34621325
So you know you're fucking retarded, but proceed to make retarded comments about shit here because you figure you'll fit in?

File: Grip.jpg (116KB, 1312x1254px) Image search: [Google]

116KB, 1312x1254px

I'm currently messing around with 3d printing and later CNC milling some furniture for my VZ58. Found some CAD files on grabcad and made a textured grip as a quick test. Currently 3d printing it to see how well it fits.

>>34622282
If you are going to 3D print it, why not make something that fits your hand exactly, like an olympic shooter would use?

File: 0722170546a~01.jpg (2MB, 2561x3384px) Image search: [Google]

2MB, 2561x3384px

>>34623297
I eventually will do something like that, but right now I'm prototyping to to make sure it fits correctly and to make sure it won't break easily.
I just got done printing this out and it doesn't fit correctly. The cad file I found online is slightly different than the grip on my rifle (in hindsight I should have measured everything out first before setting an 8 hour print).

>>34623351
Print came out pretty clean. PLA?

>>34623404
Yep, using PLA for checking the fit then I'm going to move onto either PETG or ABS for the functional part. The PLA grip seems pretty tough going by first impressions, especially for it being mostly hollow, but I don't think it will fair well to the desert heat where I live.

File: rifle1.jpg (486KB, 4026x2484px) Image search: [Google]

486KB, 4026x2484px

this thread is making me nostalgic, here's a project I did back in 2004 when I was first teaching myself to use solidworks by reverse engineering a an old savage .22

File: weP7now.jpg (200KB, 1920x1080px) Image search: [Google]

200KB, 1920x1080px

Something I started working on this morning.

>>34623517
Oho. Gas delayed blowback. I think the port should be closer to the chamber, though.

>>34623631
Yeah I just moved it.

Hopefully at some point I'll get around to doing some actual engineering on the design but for now it's a lot of: 'That looks about right, I'll fix it later'

>>34623351
Use a hand file to fit?

I'm still working on this sketch, but I had to share the pain.

Solidworks had to disable showing sketch relations because it became too taxing for my computer. The problem is, the way shit is dimensioned on the original drawings, fucking everything is interconnected in such a way that the only way to fully define the sketch is to basically put everything in the same sketch. It's madness.

File: P08 FRAME SKETCH.png (235KB, 994x849px) Image search: [Google]

235KB, 994x849px

>>34623738
Forgot pic.

>>34623744
Nice.

>>34623744
>>34623738

>Germans

Looks good senpai

>>34623977
>>34624287
You can tell why I've been putting that component off, eh?

>>34598014
I work in a machine shop and have been working in 3d my whole life. Might see if I can make a c96...

>>34624481
Honestly, the C96 wouldn't get approved in a modern engineering department. The bolt design isn't safe enough.
The Glocknade memes are bad enough, but at least that didn't send a steel bolt into the user's eye.

>>34624519
Fair enough. I'm no engineer, but if I get my own mill I might still go for it. Would take some reading.

>>34611290
>.45 bullpup pistol
kek'ed

>>34623686
It's an issue of the shape of the grip being too different on the top of the grip and the hole for the screw being way too small instead of being just a little bit too big. Easier just to modify the 3d model than it is to try to save the current print.

>>34623744
>that dimensioning
No, that's not how dimensions are written .

File: 12.jpg (373KB, 2304x1728px) Image search: [Google]

373KB, 2304x1728px

>>34625062
The sketch itself doesn't need to be all puuurty. You put that effort into the drawings.

File: 13.jpg (392KB, 2304x1728px) Image search: [Google]

392KB, 2304x1728px

>>34625062
>>34625137
Starting to see the issue? If you want even just the outer dimensions of the frame, you need to dimension all the holes and shit because the centerpoints of the arcs are measured based off of them, etc.

>>34625137
At least try to make it legible... Them germans made it purdy goddamn I wish I had drawings that nice at work.

>>34625148
Some of the drawings are damn near illegible, man.

As long as the sketch doesn't have any blue features and it's all correct, I don't care how messy the sketch is. I'll tear someone a new asshole of the actual drawings are messy, though. I don't care if the shop needs five fucking pages for one component, they will be able to see what the fuck the features I'm dimensioning are.

One place I worked at, the engineering department was using templates intended for C size paper, but the shop would just print in A size and then complain it was too small and they'd fuck up weldments and shit like that. Drove me up the wall.

>>34625146
Where would one aquire a full set of these prints?
Not like I'd make my own Luger anytime within the next 20 or 30 years but I like having these kinds of things.
They can be useful for trouble shooting a malfunctioning gun too.

>>34625183
Some guy dumped them on here a few threads ago.

>>34622282
What 3D printer do you have? I'm looking into getting one soon

>>34625175
>As long as the sketch doesn't have any blue features and it's all correct, I don't care how messy the sketch is.
You're right, you're right. My autism was just flaring up, sorry.

>>34625189
I was actually wondering about buying physical copies but that's pretty damn nice of whoever did that.

>>34625207
It's not the worst habit, but it's time-consuming and the way you dimension the part in the sketch isn't necessarily how you'll dimension it in the drawing. I'll chain dimension in the sketch if it's convenient, for instance, but I'd never do that in the drawings.

The fields I've worked in were basically a service, so deadlines were really tight and making the sketches purdy when the client will never, ever actually look at them anyway was not beneficial. Still had the best QC record in the department.

File: 800px-US_Patent_3283435_8-Nov-1966_BREECH_CLOSURE_Theodor_Koch.png (273KB, 800x437px) Image search: [Google]

273KB, 800x437px

Do any of you know how to engineer a roller delayed blowback system? Is there a book or some other resource I can look at?

>>34625659
If you know your chamber pressure curve and assume an inelastic transfer of energy from the bolt head to the carrier and the friction coefficients between the rollers and the barrel extension you could probably work something out.

The right answer is probably just to treat it as straight blowback and start dialing back the recoil spring until the action opens consistently and completely. Again: >Germans

>>34625659
Roller delayed blowback, I don't know. The critical dimensions would be, depth of grooves that the rollers seat into, diameter of rollers, angle of any surfaces to cam rollers in or out.

>>34625202
Monoprice Maker Select V2 (Wanhao Duplicatior i3 rebrand).

It's pretty good 3d printer especially if you take the time to do the community made improvements to it.

>>34623482
aww, I was going to do that. You beat me to it.

File: 1388965596383.png (25KB, 1827x565px) Image search: [Google]

25KB, 1827x565px

>>34626537
mother fucker broke the chain

This thread reminds me of old /k/

>>34598014
If you finish this would I be able to mill it if I had a cnc

>>34626709
4u

December 29, 2013
>>34626443
>>34626450
>>34626456
>>34626466
>>34626473
>>34626482

January 5, 2014
>>34626490
>>34626495
>>34626510
>>34626522
>>34626534
>>34626545
>>34626555
>>34626566
>>34626571
>>34626582
>>34626597

January 13, 2014
>>34626609

April 25, 2015
>>34626643
>>34626671

April 27, 2015
>>34626679
>>34626691
>>34626695

>>34600302
Modeling clay. It's very useful for the beginner. Take a 3 view orthographic drawing and attempt to make the clay look like each view on the three corresponding sides. You will beguin to see the relationships.

I also recommend manual drafting of orthographic and isometric views.

I was a pencil drafter for five years befor going to 2D CAD. This helped quite a bit as far as efficient processes and visualization.

I have worked on every major Parametric Solid modeling program since, with large assemblies and instantiation. But you have to start somewhere.
In my opinion, starting on the computer to gain these basic skills puts another task in the way of learning them: the computer commands and UI.
If you start with pencils sketching, and drafting first, you will have the mindset in place so you can concentrate on operating the computer at a later date.

35 year engineering pro here.

>>34599549
Mean Yeen is this you?>>34626679

>>34626671
Is that a blow-forward?

>>34626848
I cant remember but it's probably not

File: WHYGODWHY.jpg (34KB, 600x450px) Image search: [Google]

34KB, 600x450px

for you OP

>>34626848
>>34626883
It could operate like the GM6 LYNX

>>34626931
Mixed feelings. Working on this thing really soured the design for me. It's so onerous for nothing.

>>34626781
>I have worked on every major Parametric Solid modeling program since
which one do you like best?

also you must be in your 50's why the fuck are you on /k/ and how did you find out about it?

Also, please bestow some life learned wisdom onto me.

File: mag catch.jpg (575KB, 1920x1080px) Image search: [Google]

575KB, 1920x1080px

Currently working on a magazine catch for my C96. This is a 3D-printed sampled I'm using for a fit check before having it machined.

>>34627735
Anybody know what those little circular marks on the frame in that pic are from?

>>34627813
The ones near the grip? It's from the machining process, and I can only assume it's because they had a retarded monkey operating the mill that day. When I have the thing refinished I'll make sure they go away.

>>34627830
>from the machining process
But what tool do you think?

File: end mill.jpg (14KB, 602x236px) Image search: [Google]

14KB, 602x236px

>>34627847
Just a standard end mill.

File: d07abb0b93a4c617bba77cc5f58c940bbcba1ef3.png (26KB, 650x393px) Image search: [Google]

26KB, 650x393px

>>34627847

>>34627854
>>34627878
Thanks.

File: preview5.png (258KB, 1389x678px) Image search: [Google]

258KB, 1389x678px

>>34626798
Negative. I've always used solidworks.

>kicking around the idea of designing a lever-action lower that takes AR mags and uppers
>can't get motivated because I already spend most of my day using Solidworks

>>34630126
Design an AR-15 compatible lever action lower instead.

>>34630126
That would be neat

>>34630356
>>34630468
I think the problem I was running into as I envisioned it in my head is that with the lever action guts, there's no room for the hammer in front of the takedown pin.

>>34630773
Run a striker fired system. Look at the firing port weapon for a good system that works with the AR platform.

File: 0723170045~01.jpg (189KB, 1024x768px) Image search: [Google]

189KB, 1024x768px

>>34622282
>>34623351
After tweeking the model I now have a grip that fits the VZ-58. Now I just have to move on to printing it with a stronger plastic and then test shoot with it.

CAD and 3D printing files are here if any one wants them: https://www.thingiverse.com/thing:2448305

>>34627735
How much are you paying to get this built?

>>34608586
It bottom ejects.

File: C96 build.png (16KB, 447x569px) Image search: [Google]

16KB, 447x569px

>>34634225
Too much. I expect to have north of $3k into it by the time I'm done.

File: Vetterli scope mounts.png (548KB, 1504x756px) Image search: [Google]

548KB, 1504x756px

>>34635907
ouch, this is why I do all my own machine shop work. that's rough man.

here's some vetterli offset scope mounts I just finished making, still have to niter blue them though. I can bang this sort of thing out on the bridgeports at work after hours, which is super convenient.

>>34636455
I've got the ability to get small custom parts machined through my workplace, so the only real machine shop work that I'll have to outsource is the barrel extension milling. Everything else is just the high costs inherent to the C96.

>>34626781
What is the best 3D CAD to start with and never venture from?

>>34636793
SolidWorks

>>34636793
Solidworks.

>>34627287
At first I liked Solidworks, It was my first back in '98. Then Pro-E, which was a royal pain in the ass. Then I used SolidEdge.
After getting used to SolidEdge, I found going back to Solidworks kind of a pain in the ass also. The auto-constraints seem to work much better in SE, and just a simpler program all together. Next I want to mess around with Onshape, which is designed by the same guy that did Solidworks and is completely online.

Of course picking a favorite has a lot to do with the task at hand:

If I am going to be modeling complex parts,
organic surfaces, cabling, complex sheet metal and large assemblies, I want Pro-E.
For simple sheet metal, lathe parts, some Electro-mechanical, I want SolidEdge or UG.
For simple stuff around the house I have Solidworks 2003.
Honestly, I Hate them all. But I love them too, and I do miss manual drafting sometimes.

Yes, I am 57. I have known about 4chan a long time, but I saw CAD and guns and thought this would be a lot more interesting than /pol for a change.

Wisdom? I may have had that once, but I forgot it. KEK

>>34636793
I agree with the others, but SolidEdge is worth trying a demo.

>>34638374
I'm really skeptical about OnShape, personally. I don't like the idea of all my models/drawings being on a cloud.

>>34638535
yeah, then anyone can access it and patent it under your nose and fuck you over.

>>34638535
You can still use it for common/commercial parts sharing. It should translate well.

>>34638652
that's not how patents work

>>34638739
that is if you don't have a patent or have the money to patent it. besides, who can say that the person that patented your design didn't "make it" first?

50k for a patent is why most individuals don't have patents.

>>34638652
You can do a provisional patent quite easily. Remember to always fill out your model attributes, you can use them to prove authorship, and therefore that you are the originator of an idea, which is the first criteria of patentablity.

>>34638759
1) the license requires it to be open source
2) there is clear evidence of someone else creating it

The USPTO is not going to grant anyone a patent on it. That's not how the system works.

>>34638652
If you're just practicing then it's great. If you're gunna do some serious shit then pay to get your stuff private.

>>34630773
put teeth on the bottom of the bolt where it's cut to clear the hammer. make lever that goes on either side of a thinner trigger group
???
profit

Let's suppose you invented a fight spinner and modeled it in Onshape.
If some douchebag were to come along and patent it, you could prove that it was uploaded to the Onshape database on such and such a date.
This would completely negate the patent, unless the douchebag could prove "prior art".
It may or may not be possible to sue at that point.

>>34638894
*figgit

>>34638894
I think we can all agree that just using SolidWorks/Inventor/SolidEdge/whatever other non-cloud application just saves the potential headache though, right?

>>34639297
It has nothing to do with "the cloud" and everything to do with the open-source license.

>>34612301
it could be under 26" as it has no stock it is neither a rifle or shotgun as long as the barrel is under a half inch diameter, it is just a handgun or firearm if over 26" if you want a barrel over a half inch diameter

>>34639427
Do any other apps force an open-source license? I don't think even 123D does.

>>34639584
It's not terribly uncommon with free software, but understandably there aren't too many free engineer-quality solid modeling programs out there to compare it against.

>all of the MacBook users at my uni have to go to the computer lab to do their solidworks projects on the clunky school dell desktops


jej

>>34639800
>taking a CAD class
>having a macbook
no one does this.

>>34640151
>required course
>passing the basic SW test is like 20% of your grade

yeah a lot do....

>>34639584
does fusion 360? I see quite a bit of machine shops going to it.

>>34640205
>>passing the basic SW test is like 20% of your grade
>take it on school computer
>computer is awful
>freezes and reboots mid session
>teacher shrugs and tells me that was my only chance
>tfw no SW certification
>tfw made a B in that class

>>34640205
Engineers using macbooks?
Ohhh man. I can smell the Engineering Revision Requests from here.

>>34640360
>Final SW exam
>Blue Screen of Death
>Reboot
>What I DID save was corrupted, can't open file
>Have to restart from scratch and have half the time left
>Not even the last person to finish the exam
>Two people failed and had to retake it
>I was not one of them

Some people just have no place in engineering/manufacturing.

>>34640374
>>34640151
>>34639800
one kid tried to tell me that most mechanical/electrical engineers use macbooks I asked him if he had ever spoken to a engineer.

guess his reply.

>>34640411
I know Engineers who used Linux, but well over 90% were on some version of Windows.

DESIGNERS, on the other hand, pretty much all use apple computers for some fucking reason.

>>34640407
I still think I would have done horrible. my teacher didn't go over assemblies too much and 1/3 of the exam was assemblies. speaking of which how do you rotate a part or shaft in an assembly a certain amount of degrees?

that was on the test 5 years ago, but I still have no idea about it.

>>34640427
>DESIGNERS, on the other hand, pretty much all use apple computers for some fucking reason.
strange, I thought they'd plug up their sketch tablets and run gimp, CP, or MS paint.

>>34640486
>select the two appropriate faces/lines
>press that one button
>enter value
ez

>>34640486
On the "Assembly" tab, if you click on the drop box under "Move Component", you'll find "Rotate Component". You can do free drag, but you also have other options like "About Entity" or "By Delta XYZ". You also have collision detection in both this and the "Move Component" functions, which can be useful in certain situations.

I mean, Adobe products are available in both. Paint Tool Sai is also pretty fucking baller.

File: 1497461218750.jpg (40KB, 444x470px) Image search: [Google]

40KB, 444x470px

>>34640407
>>34640360
I started tearing up at the thought of this, please put a trigger warning on this next time.

>>34640486
>speaking of which how do you rotate a part or shaft in an assembly a certain amount of degrees?

using a mate or animated?

File: 1500335043032.jpg (3KB, 125x125px) Image search: [Google]

3KB, 125x125px

Dear /k/,
at the range, the guy next to me opened up his SCAR receiver and there were some funny metal parts inside.

Now, I suspect that he may have been constructing an illegal machine gun, but I'd like to be absolutely 100% certain before I report it to the ATF.

Does anyone have dimensions, diagrams, and CAD files (for comparison purposes only) of SCAR auto sears, lightning links, and other possible SCAR naughty parts?

I would like precise measurements so I can make sure that this guy is definitely committing a felony before I file an ATF report so they can shoot his dog, flashbang his baby, buttstroke his wife, and imprison him for 10 years.

thanks for helping

>>34640522
aight, sounds easy enough. I'll tinker around with it tomorrow with a, 3d model, shaft and a hub from mc mastercarr.

yeah, SAI was the one I was thinking of.

>>34640547
shit happens.

>>34640572
mate, animated is cool too, but I never learned how to do that .

>>34640547
>First job out of school
>No PDM (Costs "too much")
>We work on files directly off the server
>Shit is super slow, autosaves lasting >5 minutes for larger assemblies (Id est: Most of our jobs)
>Ask upper management if they have any backup power systems in case the grid goes down
>No, they cost too much!
>Power went out three times that year. Twice because of storms and once because a truck smashed into a pole down the street
>We lost 8 hours of work per person in the Eng. Dept. each time and we were already getting fucked in the ass by the deadlines given to us by the Sales Dept. who think we can shit out 600 part assemblies in two hours

>>34640600
pick some combination of planes or lines, then use the angle mate option

>>34640625
Honestly, I prefer not to use angular mates if I can at all avoid it. If the reason a part is at a given angle isn't mechanical, then it's imaginary.

>>34640645
sounds like you've got a solid case of the 'tism, my friend

>>34607847
Is that a B&T Welrod? Clone of a Clone

>>34640685
>So, what's keeping that shaft at that angle?
>An angular mate!
>So when the guys in the shop build it, what keeps it at that angle?
>Uhhhhhhhh

>>34640714
Looks like a telescopic bolt to me. Probably autoloading.

>>34612631
Nah chamber it in .32 ACP

>>34640645
I think the anon was referring to the point in the SW exam where you have to line up a couple joints and stuff at a certain angle and then measure the distance between two plates or something

>>34640760
if someone made a modern double stack .32 pistol I would buy it in a hartbeat

bonus points for having the stamp of 7,65 browning on it for style

>>34640798
>then measure the distance between two plates or something
I think it's the center of the assembly but yeah.

>>34640807
.32 is "semi-rimmed", so it'll always be inherently more difficult to make a reliable double-stack mag in it than .380 ACP.

>>34640876
savage made a 1.5stack .32 in 1910... the extra .5 shouldn't be that hard

>>34640876
Something easily suppressed like .32acp, 380acp, or .45acp

>>34641052
The rim is 21 thou wider than the base. That's the same difference in diameter as a .357 Magnum's rim (which makes the difference proportionally larger). Rimlock is a very real concern.

>>34640335
With Fusion360 you have complete ownership of your designs, even on the free version. Though if you want to save any WIPs off of there cloud system you have to use the export function and choose the "f3d" file type (also the way you export standard CAD files).

>>34641594
Seriously, that little outward arc at the rear end of the grip just before the cut-out for the stock on the P08 is driving me nuts. I went as far as to create a new sketch from scratch doing literally just the essentials to model the outer profile and I can't fucking find the dimension I'm missing to turn that bitch black.

>>34641594
>>34641848
Derp. Not idea why I quoted that post. Sorry.

>>34636793
Dubs of truth checkm
>>34636955
>>34637822
>>34640714
no

>>34640732
Blind?
>>34607884
>>34607898

>>34641848
Maybe the P08 is actually 4 dimensional and current CAD software is unable to map it

>>34641929
Ah, didn't look at that pic. I just looked at the pic post that was quoted in his post. My bad.

>>34641950
I WANT to assume that these two arcs are tangent at the endpoint of that other arc, which would fully constrain the sketch, but it's still nagging at me because that is, again, a total assumption. Blarg.
I guess I'll roll with it and change it if need be once I model the stock.

File: P08 BACKSTRAP TANGENCY.png (77KB, 849x690px) Image search: [Google]

77KB, 849x690px

>>34641950
>>34641994
Aaaand I forgot the pic.

>>34599769
>tfw still using solidworks 2012
>mfw my goddamn college several years back was running 2010 and they had no backwards compatibility

>>34641994
>>34642004
Get some sleep and ask the milsurp thread about it. I don't see why not as they would have been constrained by the limitations of manual milling machines.

File: mfw.png (328KB, 512x473px) Image search: [Google]

328KB, 512x473px

>>34602234
>Win "upgrade to ten now or we brick your computer and this time we mean it" 7
>tfw hard shutdown my computer at 2am when it tried to autodownload windows 10 and had to recover the thing
>mfw turned off windows auto update immediately and looked for the hastily cobbled together 3rd party patch to nuke their windows botnet upgrade

>>34642028
It's not like you'd be able to tell whether they are tangential by eyesight. If it's wrong, it'll show up when I try to put the stock on it.

>>34641120
If you use, say, a cutting die and press or something to shear off the protruding part of the rim on a .32 ACP case, would you still have enough of a rim for an extractor made with modern high strength steel to reliably grab?

It'd be kinda cool if that was possible, DIY some .32 ACP rimless for a double stack compact pistol.

>>34642556
As per the SAAMI specs:
http://saami.org/specifications_and_information/publications/download/Z299-3_ANSI-SAAMI_CFPandR.pdf (Page 44/198)

The groove is .314 DIA which would give a rim that is flush with the base (.337 DIA) a total depth of .0115 to .0165 for the extractor to grab onto.

If we compare that to .380 ACP (Page 59/198 of the same document):
The groove is .329 DIA. The rim (.374 DIA) is between .0001 wider or ..0099 narrower than the base (.3739 DIA), so rimlock isn't a concern at all and you can basically treat the rounds as nearly perfect cylinders considering the neck is still .373 itself... So a round within allowable tolerances can have a depth between .0175 (narrow rim/wide groove) to .0275 (wide rim, narrow groove) for the extractor to grab onto.

The thing is, the cartridge headspaces on the rim, so you'd be better off just using a different round altogether, maybe even making one from the ground up. If that's the case, I'd consider using something other than brass for the standard casing. Thermosetting polymer, steel or aluminum, probably.

We're about to hit bump limit, so here's the new thread: >>34643013

>>34600558
Dude, don't talk shit about minesweeper

>>34602845
We need to perfect this
>Don't try to cast holes or things than could fuck up the casting and could be added later more easily
>Find a better casting method that would be able to transfer smaller details
>Find better 3Dprinting methods that will be more suitable for cast-making

>>34627065
quite a few old world tool and die guns are like that, hell even the Garand and M14 went full retard with fancy broaching operations.

>>34643954
"They don't make 'em like they used to"
... And with good reason.

File: 1428233616806.png (529KB, 1015x1527px) Image search: [Google]

529KB, 1015x1527px

>>34643960
>tfw the constant rise in the cost of man hours and the brain drain of institutional memory by CNC will permanently kill any chances of designs like that from ever coming back again.