markiz: 1. такое устройство есть у каждого русского в гараже
2. рукоятка которой ты качаешь домкрат, так же служит для закручивания-откручивания обратного вентиля в домкрате..
Paulo Amaral: É verdade. Aparafusando a base em uma superfície de madeira mais larga, ficará mais segura de operar. Parabéns.
Sammy Spaniel: Simple and adjustable. Now this is what I was looking for. Thanks.
RP: Recommend you add safety shield in front when using this. Half inch thick Plexiglas Acrylic sheet better then nothing.
skweekah: Beautiful. I love it. So simple yet so effective!
Carlos Extromolo: I picked up an air over hydraulic jack and some metal supply. These videos are helping me a lot to design my own press brake. I will definitely weld mine up though with my powermts welder. I was originally thinking MIG but maybe stick will be better for penetration?
lee isenberg: I made one similar to yours, but your press is more compact. I like the slim design of yours, good job. Take care, from Tennessee.
丸井 草次郎: custom made bullcrap probably. that or custom made minced words
putative3: It consisted of two 8 inch thick steel flanges 6 feet in diameter with two rings of 31/4 diameter holes around the perimeter. 20 holes in total. It was made for testing oilfield components. The test piece was sandwiched between the flanges and 3 inch diameter steel bolts made of EN16T were passed through the aligned holes and a 50 ton hydraulic jack. the jacks were connected to a manifold so that they could be moved in unison.
putative3: Two 8 inch thick steel flanges, 6 feet in diameter, with two rings of 3 1/4 inch diameter holes around the periphery, 20 in total. 20 50 ton hydraulic jacks/cylinders linked to a manifold. Made for testing oilfield components. A test piece was sandwiched between the flanges, 3 inch diameter studs made from EN 16 T were passed through the flanges and the jacks. Hey Presto 2000 tons!
mopatin: Custom made piston and cylinder?
putative3: takes me back a bit, I once built a 2000 ton press using 8 inch thick steel plates along similar lines.
os kai: Thanks! I will go check out my local metal shops.
mopatin: The threaded bars can be found at industrial supplies stores. The U profiles at a metal shop. They have to cut them and ask them to make the holes. Since a complete U profile measures (in Spain) 6 meters perhaps you have to ask for remnants at the metal shop.
os kai: Hi there,
Sorry if this is a stupid question but where can I buy the materials? Do they make bars like that or I need to go to a metal shop to get it cut? thanks!
Leslie Sterer: For safety sake take a powerarc welder and weld up all of the pieces.
BrushCountryJamboree: You can use this method for clamping Micarta that will fit between the 2 pcs of althread, you just need an xtra pc of C channel and some flat 1/2" thick pieces of plate steel
mopatin: The U beam are the kind U beam of 100 mm wide. The length, around 300 mm. The threaded bars are 25 mm diameter. The maximum height inside is around 500 mm.
mopatin: 25 mm
64Gerico: Alla fine dei conti, le presse manuali che si trovano nelle piccole officine meccaniche lavorano con quel sistema, forse adesso con la tecnologia lavorano elettricamente, ma qualche anno fa erano fatte con quel sistema. Comunque l'idea è buona, per pressare piccole cose va bene anche così.
repo1337: which diameter have the threaded bar ?
JOSE ELIAS FLOREZ MUÑOZ: sencilla pero muy eficiente gracias que dios lo bendiga
ditchbankkid: Is there anyway you can send me the specs for that press? I do a lot of automotive hobby work on my own vehicles and a press is called for on a most of the tasks. Or would you be kind enough post your specs?
JP JP: a hammer on your head, would be better. world would be a better place,
metsik77: сука да он просто гений такую мать вещдь придумал бля
Kevin Weimer: If you take another piece of channel like you have on top, weld or bolt a bung in the center of it. add an eyebolt on each side of it, and add an eye bolt at each side on the bottom piece, then the jack will come back down by itself. The third channel would float between the jack and top channel. Nice job though for a quickly made press!!!
RIZARI MARCENARIA: ?????????qual o sentido disto uma marretada ja resolvia
Micscience: I agree however I don't see how threads can withstand up to those types of pressures. I would rather use a hardened bolt placed threw bolt holes.
mopatin: Yes!, it is a forced perspective effect (non intentional). Since the hand is closer, it seems that the press is "pocket size".
Logan Raimer: it looks so much smaller on the thumbnail haha
Markus Ketonen: It's called "A Bottle Jack"... who would have guessed? ;)
HalfLife2Beta: whats the main component the bottle looking one?
greasemonkeypol: 1 1/4 per nut
2,5 per bolt
haggis240: It's top notch It would take an idiot to get hurt buy this if it jacks up cars and doesn't slip why wouldn't it do the same
Sebastian Adams: I'd feel safer welding her up with a PowerArc. Thanks for the video. You've inspired me to make one myself!
mopatin: Imagine a weight lifter that has up 100 Kg weights. Each hand and each foot stands 50 Kg. You cant divide the 100 Kg by 4 (25 kg each hand and foot). The same happens with the nuts. With the jack I dont create 10 tons of force, but 5 tons for the top nuts and -5 tons (the reaction) for the bottom nuts.
StevesProjects: Incorrect my friend. The car weighs one ton. The jack can only exert 1 ton. The base "feels" the weight of the car and the jack which is fractionally more than 1 ton. You cannot create 2 tons of force with a 1 ton jack. Newtons 3rd law says there is an equal and OPPOSITE reaction. That means the floor is pushing the jack upwards with a force of 1 ton.
mopatin: Imagine you have a 1 Ton jack under a 1 Ton car and you lift it. The piston of the jack will "feel" 1 ton and the base another ton. Newton's Third Law. If it were 1/2 ton, then it couldnt lift the car.
StevesProjects: diyengineer is correct. 5 tons is 5 tons. You cannot just double it to 10 tons because it is pushing up and down! 1 1/4 tons per nut.
Francisco Gastardelli: Parabens,vou construir uma tambem,obrigado.
rondust1: The bolts and threads are the critical point, theses are rated by EXTRACTION force.
Going by the diameter and only if it was mild steel - the nuts probably have an extraction force well over 5 Ton per bolt thread nut joint.
That means you will bend the channels top and bottom before failure of the system.
The most that will happen is a nut will strip a threaded rod!
There would never be a catastophic failure, as pressure is applied slowly.
cherryblue3: I want to do this for a project at work, could you tell me what materials you used to make this press? My knowledge on this kind of thing is pretty limited. If you want you can message me. Thanks!
Yohann therrien gauthier: take more pressure im positive.
roberty bob: shut up
diyengineer: "Someone would have to backup my physics". It came with a disclaimer. Easy enough to sit back and just shovel crap.