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Archived threads in /diy/ - Do It yourself - 177. page
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Hello /diy/

/k/ here. I humbly request your shared knowledge on hydraulic shot presses. I could always just buy one, and still may, but I like to build things for myself. Can anyone provide schematics, or a parts list, or any other advice for building a 20 ton shop press? Will be used for bending sheet and plate and pipe, but also to press the occasional barrel into the odd trunnion, and who knows maybe I'll rebuild a bearing or two.

Going for basically pic related, but much taller, and possibly on a cart or with its own wheels.
57 replies and 16 images submitted. Click here to view.
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My biggest obstacle here is that I am shit at welding. So my question here is can a build like this be done with just nuts and bolts and bushings? Are there any deal breaking cons to building a press which is held together with huge nuts and bolts rather than welded joints?

Additional questions.
What gauge rectangular tubing/ channel/angle sock should be used for the frame to withstand around 25-30 tons of load. I want to overburdened it in case I someday decide I need more dakka.
>>
>>935264
get better at welding, I would not go with bolts.
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>>935269
>What gauge rectangular tubing/ channel/angle sock should be used for the frame to withstand around 25-30 tons of load. I want to overburdened it in case I someday decide I need more dakka.
The AISC has a very handy resource available that details exactly how to calculate loads. Start from the beginning of the code book and you might actually learn something useful. It will answer all your questions. If you want to just be on the safe side then i'd go with 3" thick solid steel square stock.

How do you like the new retro LED filament light bulbs?
70 replies and 15 images submitted. Click here to view.
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>>933569
As much as I like any lightbulb.
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>>933572
fucking pleb.
>be me
>every time go shopping drag gf along to light bulb section
>enjoy checking out color temperatures, intensity, lighting patterns

>>933569
I dont really like them. I hate things pretending to be things they arn't. it doesnt produce the same color as incandescent and it's less efficient than any other kind of led bulb and how does it into...
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>>933577
I believe the LED filaments are encased in a glass like material which helps in the heat dissipation.

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ITT: tools you didn't know you absolutely needed until after you bought one
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>dial
pleb
>>
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>>931155
Not a fan of expensive watch batteries when a fully mechanical option is available. I do wish I had gotten a metric one instead, though.

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I buy gloves like Imelda Marcos bought shoes.

I lie to myself that I'm looking for the "perfect work glove" but I know that no such thing exists.

One of my favorite though is pic related: Rig Lizard Oasis 2022

>pros
cut protection
full hand impact protection
mesh back liner so breathable
good grip even when dealing with oil covered crap
high dexterity, only have to take them off for the most delicate of tasks

>cons
mesh rear liner, liquids and dirt make it...
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21 replies and 4 images submitted. Click here to view.
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Uhh, mechanix. Whichever I see first that have impact protection. I buy them on a pcard, so I'm not ordering odd-brand shit like 'rig lizard', and every other glove brand available in stores besides mechanix and monkey grip are shit.
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>>938476
>odd-brand shit like 'rig lizard'
Hexarmor isn't "odd-brand" friend. It's the goto brand in the oilfield if you want better protection than the hamburger helper gloves give.
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>>938472
the perfect one for me is

typical cheap cut resistant gloves with pu coatings

- cut protection
- no impact protection but i dont need it
- maximum dexterity as far as gloves can go
- breathable
- cheap
- washable
- good grip

the thing is, you can either have breathability or water resistance, and dexterity or impact protection, these things are mutually exclusive

I got bored and decided to do the math on what it would take to make a moon base out of modified intermodal containers.

First, some basics:

- An unloaded, stock 40 foot intermodal container weighs about 2.5 tons, a loaded container can usually hold up to 8 tons
- 1 atm of air inside it is about 14 lbs/square inch. Using that as a baseline, a container that could remain airtight in a vacuum would also need to remain watertight at a depth of 10 meters (where PSI is 30 lbs/square inches)
- The Apollo program spacesuits each weighed about 145 pounds, with eight...
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12 replies and 5 images submitted. Click here to view.
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Given these circumstances, a single SLS could carry 1 container and a year's worth of supplies in a single trip and have 11 tons left over.

>The more you know
>>
I realized I fucked up the math for the insulation.

206 x 8 = 1,648 lbs, or 1 ton. This makes containers 8 tons.

Which means that an SLS can only carry 8. A single container + a year of supplies is 57 tons, which leaves 13 tons left over.
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>>938757
>A single frozen Hungry-Man Smokin' Backyard Barbeque TV dinner
Lost it

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Hey /diy/. I've been wondering... how hard is it to convert a gasoline car into an electric car? Unfortunately, I have this Bora in my backyard taking up space, and the engine is completely blown. However, someone did the favor of taking out the engine and now it just sits there with no engine. I've been wanting to convert it to an electric car since it is very lightweight and the trasnmission ( I think) seems to be okay. How hard is this, and has anyone done it? I have some skills in circuits, but by no means am I an electrical engineer. Thanks for any advice!
24 replies and 3 images submitted. Click here to view.
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What you're asking is effectively impossible.

Someone with a proper shop, tools, access to engines and batteries, lots of time and lots of money COULD do it.

But for someone like OP that is so dumb as to even ask the question? Yeah, it's impossible.

Only way the car might move again is on a tow-truck... OR if you went a put a new engine in it yourself.
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>>934709
EV swaps really arent that hard to do.

>>934702
It can be done pretty easily, if you can get a bell housing for your transmission.
I know that old Golfs are very popular for this, and you can easily buy a bell housing for the old 1.8l VWs.

From there its just buying and mounting a forklift motor to your transmission, buying (or building) a motor controller to hook to your throttle, and building a battery array.

You can do it and get a good ~40...
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Average cost of conversion is 10K. It won't be practical and it'll take a lot of time, unless you know your way around a wrench. Google around for conversion kits and figure out how you'll get power steering and brakes again to start.

what would be a cheap way to alternate the flow of a liquid between two outputs? It needs to be small like to accommodate hosing around 4mm. preferably cheap. this is for irrigation
8 replies and 3 images submitted. Click here to view.
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>>938297
Are you talking drip line irrigation?

You set up 'zones'. Each zone is run for a particular length of time i.e. 1 hour. You can then use different emitters to control how much flow you get out the end. usually 1/2, 1, and 2 gallons per hour.

You're also limited by tubing size. for example my lines I buy, the 1/4" tube is limited to a 30' run and can supply 30 gallons per hour. So I can take a 1/4" line and put a couple T's in and get 15x2gph emitters.

The zones...
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>>938297
Anon, tell us more.

Manual switch to force flow to a different side? A unit that flpas back and forth so it goes to to both?
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>>938297
there is gang valve manifolds sold for aquarium air hose use... some are brass and might corrode with water, but some cheaper ones are made of all-plastic

Using only rudimentary aluminium casting techniques, is it possible for me to make a mechanical system that causes a large (2m across maybe) parabolic dish to track the sun, without using electrical power?
Also, how easy is it to make solar-powered thermoelectric generators?
35 replies and 9 images submitted. Click here to view.
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>>936291
a small solar panel, a battery and a linear actuator and levers.
using a solar panel would be cheaper and easier than any other option. although, if you wanted, you could build some kind of complex orrery powered by hamsters or the suffering of mortys.
>>
>>936293
Even when dealing with extremely concentrated sunlight, is a solar panel superior to a thermoelectric generator?
Pi square metres of sunlight is a lot of energy for a small solar panel to take...
>>
>>936296
no your problem is that you need power to be input to the system. equal and opposite force. laws of physics here. so one way or another, you need power. a small solar panel say a 40w and battery will give you enough power to shift a parabolic dish across 60 degrees once a day for sun tracking purposes and return to starting position for tomorrow. now what is your dish for? why do you think a small scale thermoelectric generator is better than a solar panel for your application?

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Hello /diy/, I was directed here from /mu/
I plan to order a white pickguard for my strat and put some art on it.
How much work will this be? What materials and products will I need? I was planning to use acrylic paint and just put some clear coat on it. Will this suffice?
Tips, suggestions, experiences?
Obviously, I want the art to not wear away from my fingers constantly touching and scratching at it.Any help is appreciated.
15 replies and 3 images submitted. Click here to view.
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You won't like the texture, believe me

If I were you I'd draw the art and order a water slide decal of it. Then you spray a clear coat on it and it will be there forever, it won't be messy, etc.
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>>937169
What about some kind of marker? Would this work on a pickguard under clear coat?
>>
>>937172
Depending on the varnish you use, the base on it will actually act as a thinner for the marker as well so it will be smudged

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I'm thinking about setting up a bitcoin farm at my workplace (free electricity, privacy) starting with a 1000-1500$ budget, anyone has any experience in bit mining? I'd like to know some good equipment/setup for this
11 replies and 1 images submitted. Click here to view.
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>>938589
Would a GPU only set up work?
>>
>bitcoin mining

Just pile up your money in the yard and set it on fire.
>>
>>938591

yes

>>938592

thanks guy

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I want to make a powered treadmill from scratch. How much do you guys think it will cost me?
9 replies and 1 images submitted. Click here to view.
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>>938553
at least a dollar
>>
>>938553
At least as much as the cheapest, shittiest treadmill you can buy.

Go on CL. people give away that shit all the time
>>
Just run in damn circle or somethin, or buy a brand new car for only your soul!

This is the new Multimeter as seen in the photo I picked up.
I have a lot of AC adapters I need to test.
Can Anyone walk me through this?
19 replies and 5 images submitted. Click here to view.
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Either this Multimeter is fucked or I need to go back to grade school.
>>
>>938487
plug the adapter into a power socket

set the meter to dc

red touch outer

black touch inside

read meter

done
>>
>>938490
There is a 'DC' setting on each main setting by pressing 'select' ie: mA has a 'DC' setting as does V.
What one should I be selecting?

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I'm a part of a HEMA club and I want to make some training rondel daggers.

How would I go about doing it?

Keep in mind I have little woodworking skill and few tools.
14 replies and 3 images submitted. Click here to view.
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Buy a stick and clamp of into your drillpress or your drill. Use it as a lathe
>>
>>938325
what tools do you have?

>>938328
this, make a sanding bow. you wont get the crisp tight curves, but should get something usable. also, round off the edges as much as possible with a knife or chisel, will be much faster than sanding it down. (don't use knife with drill and with drill press only if you have a centerpoint on the bottom too. too much sideways force otherwise.)
>>
proper way would be a lathe, ash dowel rods, about 16 inches / 40cm is good, and turn it.

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Sup /diy/, welderfag here. I'm looking to start doing some metal fabrication at home. What are the basic tools I'm gonna need? I wanna build stuff similar to pic related eventually. Also does anyone have any recommendations for a tig welder that can run off household power?
7 replies and 1 images submitted. Click here to view.
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>>937857
You want to build a dead horseshoe crab?
>>
>>937868
Don't judge him
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>>937857
>welderfag here. I'm looking to start doing some metal fabrication at home. What are the basic tools I'm gonna need?

probably the same tools you use in the field

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Hey there, /diy/

After years of apartment living, the wife and I are finally moving into a big-boy house. I want to start investing in some decent tools that will last for a little while but not break the bank.

The first one I think I'd like to bring home is a table saw. Any suggestions as far as what brands to avoid, models to consider, or if a certain tool has been especially good to you that you can recommend to a new buyer?

I guess what I'm really asking is what someone starting a tool collection should prioritize
30 replies and 1 images submitted. Click here to view.
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Brands are about the same. If you want higher quality, look at industrial/commercial lines. They also cost more.
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>>937560
If you're just starting out, utility is gonna be your best bet.

A table saw is a good choice, also look into a handheld drill
>>
>>937582
This, plus maybe a miter saw depending on what projects you have planned

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