Hey /diy/,
I was looking at getting some marking blue for laying out metal parts for cutting and I heard that there are recipes for making it.
Anyone know how to make this stuff? A recipe that included thinners, pigment powder and some shellac sounded pretty good but I don't remember the quantities.
Also, sheetmetal/machining/toolmaking thread I guess
>>1064185
Its a mix of methyl blue, methyl violet and a resin.
Getting these ant a decent price might be hard.
You could mix up a substitute of finely powdered chalk and water or if you have a chemically resistant surface you could use copper sulphate and a drop of sulphuric acid in a water solution.
>>1064185
Marking fluid is like 5 bucks?
>>1064185
Water colors work for engraving, kind of. China white is better.
Ok my only concern is the Property Tax (2%).
The tax is on the "assessed" value of the home.
So what's stopping someone from buying a poor-quality home and pumping $100k into it to keep the "assessed" value low?
Property is re-assessed each year.
(or at regular intervals)
Improvements will be noted and applied.
>>1064167
so you're stating someone comes by to assess homes secretly?
theres no law forcing me to get a new assessment every year right?
but even so, how will any outsider know what's on the inside of my home?
>>1064170
You don't have a choice, homes will be assessed , hell they even fly planes over neighborhoods to see who has pools and new features added,plus they pull permits filed when you do upgrades.
I need to find out a site where I can buy a controller board for a LQ156D1JX01 panel. Is this the right board? I want to use it as a pc monitor, and I can't find a control board anywhere.
>>1064141
There's often generic lvds panel drivers on eBay.assuming that panel uses lvds
>>1064228
I think everything uses edp now. at least anything over 1080. lvds had its limits. lvds controllers need to be specifically programmed for the display you are using. edp is well, display port.
looks good to me
Need help, guys. One button switches on the exhaust fan and as well as the light. How do i disconnect the exhause fan from the switch so that I don't have to jump off a cliff to peace. Thanks
>>1064128
country?
pic of wiring behind switch?
>>1064130
UK.
I will undo those 2 front screws and report back in a few seconds. Thanks.
>>1064130
There is red wire and a black wire that goes in the socket. The other two red and black wires are not connected to the socket.
So I've been thinking about doing a project that will teach me about metalwork, and a stirling engine seems like a pretty cool thing to make.
Would it be possible to make one that's powerful enough to take a sizable chunk out of my electricity bill, if I run it 24/7?
I'd be able to run it off of waste engine oil for free, and of course I'd have some kind of fire protection system in case something went wrong when I'm not at home - is it worth the effort, or should I look at making my own solar and wind energy system instead?
>>1064120
Steam would be much more efficient
>>1064129
>steam
Now there's a good idea, yeah. Hadn't really thought about it - a turbine might be out of my reach in terms of construction, a triple expansion piston generator would be a pretty cool project.
I'm facinated by Stirling engines but I've never seen one doing any real work ,i think it's an engine with a lot of potential but yeah steam would be better for your house or even just a diesel generator that would probably run the waste oil
Are there any architects here that could give me some structural advice for this upcoming project of mine?
I want to build a loft in my new condo to serve as a place for my bed and possibly a desk and computer. My condo has 13' ceilings and the loft will span about 12' across and will only act as a partial ceiling, meaning it will come out of the wall about 6' and the rest will be open space for a ladder or small stair case. The reason I have to do this is because of the windows on the opposite wall that span almost the entire height.
I do not want any support posts in the middle of the room so I figure that i will need at least one very thick hardwood beam to do most of the supporting, and the rest of the beams to be slightly smaller. With the thickness of the support beams and drywall and flooring, I will not be able to stand in this loft, and I think I am okay with that. What I am worried about is having the correct amount of support beams with the proper configuration and fixtures.
To help visualize what I am after, I have completely modeled the room to the best of my ability and added in the loft with the single 2x10 and 2x8 beams that I hope to use. The vertical beams on the outside of the model represent where I believe the studs are after using a stud finder. I wasn't able to locate them all, and will have to wait until I cut into the drywall to know for sure.
Is this configuration going to be sufficient for what I want to do? I will post more pictures.
Any advice is appreciated.
>>1064054
>>1064055
>>1064056
How bad did my folks fuck up?
Can a homeless depot tool really be that much chink crap or is it all a meme?
Also, general cheap and possibly crappy tools thread.
Makita need not apply
>>1064045
A battery powered chainsaw is retarded no matter what. Doesn't matter what brand.
Ryobi in general is pretty good, though. Name one other brand that isn't all plastic shit.
These aren't meant for "standard" chainsaw tasks like taking apart the 40-year old tree the last tropical storm downed in your yard... for that, yes, a battery powered chainsaw is stupid. This is more for smaller limbs and branches (note the shortened blade).
These are great for hedge trimming or removing branches that are getting just a bit too close to the house, or a crape myrtle that has gone untrimmed for so long you think she's French. The battery won't last long, but for tasks like that it might beat lugging an extension cord around the yard.
TL;DR - it might not be half bad...if you don't already own a pole saw.
>>1064061
This guy is exactly right, I have that exact chainsaw. It's built for light duty tasks, I've pruned 3-4 diameter limbs off of trees, cut down Woody brush, demolished some ornamental trees etc.
It'll never fell an oak tree or anything like that, but for basic home owner needs that would suck with hand tools, this fits the bill nicely.
I have one of these metal wire garden fences that you can get at a big box store. It's bendable. The best description I could give is its maybe 10% stronger than the metal you would use to stake a 18" voting lawn sign.
Would pic related be strong enough to cut this shit? I just got a house and am getting tools so I don't mind the price. And no, I cannot simply pull the fence out of the ground (its a mess).
Pic of the fence?
>>1063958
it's ultra shit-tier fencing like this
>>1063953
The cheap ones with the hinge are actually pretty nice if you're making a lot of cuts. Pic related.
I've started a new tradition for Halloween. I do a "Candy Monster".
Basically I build a stage and have a spooky puppet that I give out candy with. I have a little witch puppet with arms this year, so she can toss candy at kids out of a cauldron with some spook black Ice. (candy is suspended above the water on a grate)
The kids all generally have a good time, some get too scared, even though it's not a very scary puppet and a generally light hearted kind of spooky. I get a lot of thank yous from the parents for doing it every year because I'm "the cool house" on Halloween and nobody else really does too much aside from good decorations. Problem is, some kids and some teenagers are little cunts.
I need a way to let them know they've outstayed their welcome and I probably won't have any help this year.
This year I'm working with this outdoor bar thing which has a large umbrella over the top. My thought is to have some kind of secondary puppet and rig it up to shoot silly string or something. Perhaps drop a shit load of fake spiders.
Most kids are great, most teenagers are even great about it. But every so often there some cunt that comes along telling all the little kids that it's a puppet like they've discovered some amazing secret and they try and fuck with the setup. Usually some edge lord 11 year old. I want to fuck that kid up, but not be arrested and I want it to be something that would make little kids laugh at them.
>>1063941
throw something on them. They'll get spooked because anyone can get startled, and the kids (that probably also know it's all fake) will have fun laughing at the pranked teenager.
alternatively: buy a gun and shoot teenagers because AMERICA
Ice water and Whipped cream. Let the edgelord explain to his mommy why he came home needing a bath.
>>1063941
When you have a shitlord edgelord 11yr old teenlord fucklord there's almost nothing you can do that won't encourage him further. Just turn lights on and stop the show. It'll make him leave. It would be funner'n horsecocks to have a puppet swoop down or dump fishguts or fling pooh or something but it's only going to provoke them. I think it'd be fine to have something like that just because it's more entertaining, but I think you should use it for fun and not to get the bad kids to go away. For that, you need to just turn outside lights on and ruin the show for a minute.
Also, this sounds really cool, post any pics you have!
If I changed the adder block to a subtractor what would happen?
This is a homework question and I don't understand what it means. The question is:
If the adder block was changed to a subtractor block, would this circuit provide any arithmetic functionality? If so, explain. If not, explain.
I'm thinking that it would just do the same thing but the output would be flipped but i have no idea.
>>1064092
>fuck
>off
>>1063911
http://www.justfuckinggoogleit.com/search/binary%20adder
So Im opening a Burguer place and I dont know what colors to use, I want to use the red because its already there... Help me please
>>1063874
try /b/ theres alot of fatass american burger eaters there who probably are experts on fast food interior design since they eat there 24/7 365
>>1063874
Make it a 50s diner, give it a checker board floor, wallpaper and throw the kid in the deep frier
>>1063874
If you want to use a different colour then red then use two coats of primer and then use the desired paint.
Hello,
I am trying to debounce a button via software but I am some how stuck. Would appreciat if someone could give me a pointer to a solution.
Microcontroller board:
Xmc4500-1024, infineon
Relax kit, arm cortex m4
>>1063845
what I do to debounce buttons is I use two separate functions in the main loop.
one disables all button-input upon pressing and sets an indicator variable, and the other re-enables all button-input and the indicator variable if the desired time delay has passed
the rest of the code is set inside a if--then statement, that checks if button-input is true
Draw a state diagram to help you visualize what's going on.
So, I want to build a 1:1 running model of the Polish TKS tankette. My only problem is, I don't know how to build the tracks. Other than that I know what I'll need to do for it.
Any ideas? I was thinking small steel plates connected to some type of chain, but I'm not sure how to do it.
Also is there a place I can find blueprints with scales? If not I have some friends in enginnering that can help me with that.
Thanks for the ideas.
Just make interlockable steelplates. Just google up disintegrating ammo belt. The bullet is a steelpiece for holding in place and the ammo belt parts are your track.
After literally 7 seconds of googlehttp://www.fahrzeuge-der-wehrmacht.de/Kettengl.html
What is best for low voltage such as chargers, table lamps, fans etc.
Just to elaborate I mean the small 4-5A Terminal blocks that you can find everywhere.
If it's something you don't move around or look at, terminals are much easier to use.
I use heatshrink when it's something visible or when it has be moved around because I always worry about accidentally shorting the exposed parts of terminals.
>>1063783
just crimp it and wrap it in duct tape
get decorative duct tape if you care how it looks
>>1063784
Do you know if one or both have a security flaw that one should be aware of?
Sure 20-50W shit is probably safe either way unless short-circuited but a pleb like me don't know
How can I get a boat to generate extremely loud, sub-audible frequency tunes?
I'm curious to see what would happen if a long-range schooner (mainly Pacific) was able to be recognised by aquatic mammals at distances of hundreds of kilometres, in much the same way as whales with their unique songs.
>>1063675
>a boat
>extremely loud, sub-audible frequency tunes
Not going to happen mate, you are talking about a steady wave of 10hz that is extremely loud in the water, maybe if you drop a series a bombs in it, there is no way to make that happen
>>1063695
>I know nothing
Get out.
Two options I can think of:
There are a number of extremely low-frequency speakers that are essentially fans with variable-pitch blades. These are driven by voice coils that can produce low-frequency audio, well below human hearing range, at substantial volume. There's no inherent reason you couldn't do the same underwater.
If you want just about the loudest thing that you can actually modulate, you're looking for a pneumatic (or, in this cause) hydraulic amplifier. Sometimes known as an auxetophone. It's simply an electronically-actuated valve attached to a voice coil. They're capable of insane decibel levels, far above what the loudest of conventional speakers can produce. We're talking so far past "instant, permanent, and complete hearing loss" you enter "actually lethal" territory, depending on the details.
This is still a stupid idea, though, even if it is technically possible.
>>1063697
>They're capable of insane decibel levels, far above what the loudest of conventional speakers can produce. We're talking so far past "instant, permanent, and complete hearing loss" you enter "actually lethal" territory