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Archived threads in /diy/ - Do It yourself - 6. page

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Anyone try the Openbuilds minimill? Looking for something that can cut plastic (ABS, HDPE, POM) with accuracy under 0.1mm

Saw on a forum that the minimill supposedly has decent accuracy. Anyone here try it or other <$1000 desktop mills?
28 posts and 2 images submitted.
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there are some pretty cheap (sub 300 dollar) laser cutters and 3d printers on aliexpress that you could easily modify to fit a dremel or a router to cut plastic.
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>>1237336
No
3d printers and laser cutters arent built with lateral forces in mind, they simply wont be stiff enough to chew through material without flexing and walking making your cut inaccurate.

>>1237294
The axis movements in all of these small machines are pretty accurate nowadays, cheap little controller boards with proper steppers.

It looks stiff enough to cut through some plastic if you have a stout enough spindle
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I've been looking into this from the perspective of being as cheap as possible to play around with. This guy has some interesting cnc machines he's built from basic materials. Probably not what OP is looking for, but interesting for /diy/ tinkering.

http://www.homofaciens.de/technics-machines-cnc-v2_en.htm

Anyone here ever made their own plate armor? Seems straightforward enough if you don't mind the hours and hours of hammering flat sheet metal into something wearable.

https://www.youtube.com/watch?v=0-aAz9JlZ7g
23 posts and 6 images submitted.
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What are you protecting yourself from.

It's easier just to buy a bulletproof vest.
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>>1233720
lightning strikes?
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>>1233718
>seems straightforward enough
Yeah, and making clothes is just cutting and sewing fabric, and framing a house is just cutting wood and hammering nails.

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Got fucked up pouring gas into a carb. Anyone else have pics of /diy/ related injuries?
313 posts and 34 images submitted.
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This is the day after
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>>1228072
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>>1228069
Oof
Hope you recover ok anon

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>oh boy gonna turn my garage into a laundry room
>it's actually not a garage but a converted carport
>also an unlicensed structure
>failed inspection because the garage door (which we rarely open and itself sits on the ground) is technically too heavy for the structure
>asbestos roof tiles
>likely lead paint used as the exterior's base coat

on the bright side the cracked slab isn't a major problem since it's just a driveway and not a foundation
11 posts and 1 images submitted.
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>>1241927
So what's stopping you from putting a washer and dryer in there?
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>>1241927
Might as well convert it into a landfill.
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>>1241929

City requires a new inspection for new sewer drains. Have to pass before I move appliances in.

>>1241931

yes, which is going to be a fun experience because I can't even move a storage trailer in because I have a bunch of nonfunctional (as in not starting or rolling) vehicles in front of the garage doorway.

So I have a window A/C unit, but my windows open side-to-side, not top-down. For the last few Summers I've just had a piece of plywood cut to cover the hole, but next Summer I'm planning to get a new A/C (which is actually in the mail, on it's way here), and want a more permanent solution for the gap.

I'm thinking of making something with a thin strip of insulation in the middle, two pieces of plywood on either side, and then a nice wood trim along the edges. The inside "wall" would be painted to match the walls and trim, respectively. I'm also thinking of putting a handle on the inside (to make inserting and removing it each season easier), and screwing it into the window.

Has anybody come across a similar situation, where an A/C doesn't fit the orientation of the window? What was your solution?
21 posts and 7 images submitted.
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Have a similar problem, but I've just got a 'portable' AC unit.
The hose thing does not fucking fit or stay in the window what so ever.

Really the solution is always the same:
Build a bracket that fits in the window, and holds the thing in there.
Insulate well around edges with foam tape or such.
Use foam board sandwiched between plywood (with something weather resistant on the outside) to fill large gaps as in OP's pic.
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you could buy a small split system. my cuckshed has a Daiken.
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>>1240193
>where an A/C doesn't fit the orientation of the window? What was your solution?
literally what you see in your op image except my family used a pane of plexiglass

Poured concrete into an atlas stone mold and it came out terribly. I had a hard time with the top half of the pour because the mold has a small opening that I underestimated.

>Can I use anything to fill the pits and valleys while keeping the stones strength?

>What can I do to improve future casts?

>Any other tips on improving the overall strength of the concrete
21 posts and 4 images submitted.
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Concrete is full of rocks and therefore will not yield a perfectly spherically smooth shape. You can try adding self leveling compound or filter the rocks out and just use the powder
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>>1239996
Tap the mold for awhile aft you pour it, this should work out any air pockets near the surface which is what caused the voids
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>>1239996
Next time try mortar mix. It's just sand and cement minus the large stone aggrigate. Will settle better.
Also as >>1240013 says, you have to vibrate or tap the mold to get air bubbles out.

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Alright /diy/, new homeowner here. Guy who sold me this place took a bunch of his fancy chandeliers with him and I'm trying to replace them with normal ceiling fixtures. I get up there to attach the mounting bracket for a ceiling fan and see this shit.

It's like every room was designed to have a giant chandelier hanging in it - all there is is the electrical wires and a threaded pipe that I'm assuming can hold a tremendous amount of weight.

Any idea what this mounting style is called or if there are ways to adapt them to normal fixtures? The place came with a bunch of nice covers for all the unused hookups so I'm assuming it's not totally uncommon, but Google is failing me.
56 posts and 20 images submitted.
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Just get any light fixture with a flush back (nearly all of them) and mount it over the hole to hide it. While you are at it make sure all of the metal is earthed with a wire terminated to it.
t. electrician.
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>>1237601
Assuming that means drilling into the ceiling around the hole. I'm sure that would be sufficient for most lights, but I'm a little worried about doing that with the ceiling fan. It's going over our bed and I'd hate to have it fall on us while we're sleeping.

I think it would be nice if we could utilize the existing mounting hardware since it seems so sturdy.
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>>1237606
Yeah you are going to need more than plaster for the fan but the fixing already there will work. The end of that center pipe will be threaded and the mounting for fans is threaded so it's just a case of finding / making a thread adapter if they don't match.
Some fans also use a hook, in that case you could just drill a hole in the pipe for the hook to grab.

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Is there a better way to have made this?
I think I did pretty good, seeing as how it's lasted 2 years.
31 posts and 5 images submitted.
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splurging on an olympic bar and cross supports so that you don't crush your throat or crack your sternum/ribs.
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>Is there a better way to have made this?

Yes. That's third world shit tier at it's finest. Literally balancing heavy weight over your neck with rusty steel pipe which isn't suitable structural at all. Please proceed and remove yourself from this planet before you reproduce.
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>>1236723
Take this over to /fit/. They'll sperg out all over it.

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Today i was down at the local market saw a hatchet i liked and bought it $15 (aud), is snail brand hatchet (literally) pic related. Anyway the handle on it is a bit worse for wear and am looking to make a new one and am looking for suggestions on good quality woods to use, am looking to use a darker coloured wood if possible.
12 posts and 6 images submitted.
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Hickory, now fuck off

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Is there anything to worry about when using a DC motor to drive a load directly, without any sort of gearbox? I'm making a POV display type contraption. The motor runs at 12V and draws ~3A, which is well under the motor's maximum current draw. Although I notice the wires are getting warm (especially the thin ones).

Will this damage the motor? I haven't noticed the casing get warm, yet. Since the current draw is well within what it's rated for, it shouldn't be dangerous, no?
11 posts and 2 images submitted.
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>>1241968
>The motor runs at 12V and draws ~3A, which is well under the motor's maximum current draw

It appears that you have confused "maximum" with "nominal"

Your motor will burn out. Kill yourself now.
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>>1241991
Maybe I quoted the datasheet wrong. It says the "maximum efficiency" current is 4.5A, and I'm drawing ~3.
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>>1241995
Link to the motor you are using.

kys still recommended as a solution.

I've recently come into 4x 12V 26Ah batteries and would like to set up a home UPS system. It would be running my internet, wifi, and a arduino Mega and tablet I have set up for home automation. All in all maybe 500W.

Batteries are HZS 12-26. http://www.batteryclerk.com/store/p/67367-Haze-HZS12-26-HZS-12-26-Flag-12V-26Ah-UPS-Battery.html

I have a 1000W 12V inverter I'll use to go to 120V, but I'd like some advice on the right charger from anons who know.
31 posts and 3 images submitted.
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>>1241200
Check this out:
https://www.amazon.com/NOCO-G3500-UltraSafe-Battery-Charger/dp/B004LWVEKS/ref=sr_1_6?ie=UTF8&qid=1504928819&sr=8-6&keywords=12v+charger
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>>1241266
Will that thing supply enough power? At 3.5 A thats only putting out 42W, I thought it would need to be rated higher to match the load on it or won't it just be draining the battery's?
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>>1241448
That one would be for maintaining the battery state and occasional recharge use, say after a random infrequent power failure.

How are you using the system ?

Hello /diy/ I'm not sure if this is the place to ask, but anyway.

The company I work for is starting a new machinign project, and we will be manufacturing medical prothesis pieces like these titanium implants.
>pic related

We are currently buying the "swiss" (watchmaker) CNC 5 axis mill and the 3D scanner for QC.

Now we are looking for a 3D printer for prototyping. Any recommendations?

We need to make them as precise as possible and I'm not very up to date on industrial grade 3D printers.

Thanks in advance
12 posts and 1 images submitted.
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Sorry, the implants in
>pic related
Are not titanium, but SS 304
We will be working with both materials... but that's not the problem at hand anyway.
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>have a very specific question involving and investment of potentially hundreds of thousands of dollars
>ignore specific forums and resources
>ask some autists on a general DIY taiwanese 'man-dickgirl love' dating forum
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>>1241041
I just want a starting point man, and since I'm regularly shitposting on 4chan I don't see why not.

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Looking for a DC-DC converter board preferably from EBay.
Input: approx 24V
Output: 40V - 60V approx 3A

Must be current limited adjustable and short circuit proof. RELIABLE !

Prefer isolated but not really necessary.

< $30

Recommendations ?
18 posts and 1 images submitted.
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>>1240806
Nobody here can make a recommendation better than eBay itself. You search what you're looking for and look for reputable or reliable sellers, and double check to make sure you know what you're getting. Try "variable boost converter" with combinations of your specs in there. You're not going to find something specifically "short circuit proof" or specifically "RELIABLE", but if you know your shit you'll easily be able to fix anything that goes wrong on it. You can coat the whole thing in epoxy (or hot glue if you're a sick bastard) to waterproof it, but it's really not worth doing unless you plan on taking it swimming, a good enclosure will stop anything from getting in there and shorting it. And in the end you get what you pay for anyway.
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>>1240806
>buy for me
no fuck you nigger. get cancer and delete your thread.
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>>1240816
>>1240817
If you have not used any specific board or module with experience to share, go find some other thread to troll.

All of a sudden I have tons of time on my hands and nothing much to do besides play music and watch tv.
I want to get creative and make synthesisers, oscillators, guitar pedals, filters, pretty much anything music related from scratch.
I even heard that some people have diagrams for Roland hardware.

What's a good entry point for someone that's been soldering modchips and fixing electronics for years and what are some good resources?
24 posts and 3 images submitted.
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>>1240773
Get a fucking job you dirty hippie
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>>1240778
Just because you're proud of your 1m cubicle and water-cooler social life doesn't mean we all should.
I quit my job to look after my sick father.
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>>1240780
Dirty hippie excuses, i have my own business like a real man and not like some dirty hippie faggot

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I'm looking for the most lightweight impact wrench I can find. This means no cordless ones.

My options are either corded electric ones or air ones. Which one offers more weight savings?
43 posts and 7 images submitted.
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>>1240677
https://www.ingersollrandproducts.com/en-us/power-tools/products/impactools/2135ptimax.html

It's not the full-on industrial top-of-the-line model, but it will do everything you need it to do.
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Don't bother with corded electric one. Maybe get one of those as a backup for shit you can't get the air hose to, but otherwise not up to snuff.
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>>1240677
Air is as light as it gets assuming you have a compressor that can keep up.

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