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/diy/ - Do It Yourself

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1417356 No.1417356 [Reply] [Original]

i don't know how to search for it, some heavy duty springs and rubber belts? they need to push back up with some nice force for 10 ton bottle jack to reverse it and bring ~15kg up

>> No.1417357

>>1417356
>bottle jack press

>> No.1417358

>>1417356
You can push it back by hand but fuck that

>> No.1417361
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1417361

>>1417356
>i don't know how to search for it,

well, try searching for "spring"?

the black rubber strap is a bungie cord or bungie strap. so, I anticipate your next question: search for "bungie cord", or "bungie strap".

(is this retard day or something)

>> No.1417377

>>1417356
>i don't know how to search for it, some heavy duty springs and rubber belts?
Extension springs

http://www.mcmaster.com
http://www.springsfast.com

>> No.1417379

>>1417356
If you’re gonna use it as a printing press just be aware it’s not great. But can hold you over till you can afford a real one.

>> No.1417385

>>1417379
no, it will be die cutting press for leather

>> No.1417395
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1417395

>>1417385

It may not be clear, but these eye bolts are threaded (at least the ones on my identical press are). When you choose springs and hardware, be sure to provide a lot of adjustment so that the springs will easily retract the heavy jack when you open the release valve. I have to help mine a bit with some upward force from my hand, but once it is fully raised the springs keep it there because the eyebolts had enough adjustment. The main thing to get right is the length of the springs. If they are too long you might not be able to adjust them adequately. If they are too short they might be overstressed if you have to jack too far.

>> No.1417400

>>1417356
This is a good opportunity for me to ask what industrial presses use for the return stroke?

And is the stamping just the weight of the moveable part of the die?

>> No.1417412
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1417412

>>1417385
>no, it will be die cutting press for leather
>>1417400
Industrial die-cutting presses are mostly large bore size pneumatic "clicker" presses. They scale upwards to electric pump driven hydraulic presses but those are usually for packaging applications.

I'm using a 20-ton press for punching out foam and I really want a clicker press, but the prices on them are terrible.

>> No.1417481

heavy duty mech reporting in we use a 60 ton hydraulic press almost every day

>> No.1417483

>>1417412
>>1417395
>>1417481
what material should i have under the leather piece? something like these green cutting mats for crafts, or kitchen cutting board, or another piece of leather?

>> No.1417642

>>1417481
Smash cool shit with it. Eeport back!

>> No.1417650

Why doesn't it return on its own? Not really familiar with this technology. Usually I just pump and go.