This is a detailed overview of my custom designed power draw bar for the G0704 mill. The assembly fits on the stock head with stock motor.
Пікірлер: 24
@michaelbrocato75352 жыл бұрын
Sweet setup and I love the detailed explanation...job well done
@SurfyKirky3 жыл бұрын
I’m sold really made it easy to understand how they work. A design or kit would be awesome
@Lspe75 жыл бұрын
Great job. Looking to do something similar on my KX3 cnc. Most of the videos about the pneumatic drawbars do not explain the concepts as well as yours.
@darkobul15 жыл бұрын
cool man. Lot of work but nice design. You have demystified to me hole thing.
@GuyFawkes9115 жыл бұрын
thanks great video.
@TMCmakes5 жыл бұрын
i would love to see drawings, but after hearing that it took you a year to implement, maybe i'll just buy a cylinder and build a housing for it! i love building stuff for the mill, but i love building stuff WITH the mill even more.
@7727777777777774 жыл бұрын
Thanks for explaination and overview of your design very helpful
@ChristopherJones16 Жыл бұрын
04:27 I’m having trouble following how the draw bar lifts up by being pressed on downwards. Is it actually being lifted up or only appearing to be lifted up because the washers are being pressed down creating the illusion the draw bar is lifting up?
@LionSandwich Жыл бұрын
The plate is the reaction force for the Bellevilles being compressed by the changer piston.
@Brute4rce1111 Жыл бұрын
I was thinking about making my own but it looks pretty complicated 😅. Have you thought about hydraulics? Possibly a small pump power pack with a 1.5" hydraulic cylinder?
@LionSandwich Жыл бұрын
It was complicated. Don't do it😂
@joat_mon Жыл бұрын
Nicely done! Thanks for sharing. I'm considering going down the 3D printed power draw bar rabbit hole too. What are some of the major issues to overcome using plastic components? What I'm considering is using some metal parts to overcome the limitations of the 3D printed parts. Thanks again, nice design!
@LionSandwich Жыл бұрын
Don't do it. I've sank way too many hours into failures. Plastic simply isn't stiff enough to create reasonable sealing surfaces.
@joat_mon Жыл бұрын
@@LionSandwich I hear ya. Safety and flying plastic shrapnel come to mind too. It's an engineering puzzle that I can't help but to ponder though.
@rc-cnc34313 жыл бұрын
Interesting concept. How much force did it produce @90 psi
@LionSandwich3 жыл бұрын
1500lbs
@minasianjohn3 жыл бұрын
Hi, I'm very interested in making one of these you have done a nice job in designing and building it. I'll say I like this concept more than the pneumatic Harbor Freight version. If you have the specs and the sketch ,I would be interested in buying it from you. Thank you kindly. John
@ChristopherJones16 Жыл бұрын
Is that the one that uses the air ratchet?
@homemadetools5 жыл бұрын
Nice, subscribed! If you want more subs, feel free to embed your video on our homemade tools forum; looks like you're one of us :-)
@mr1enrollment3 жыл бұрын
if I am not mistaken, the series connection of pistons does NOT multiply the force. rather only the linear deflection/motion of the piston is 'multiplied'. the force remains: F = (pi*r^2) * air pressure = (3.14*(3/2)^2) * 90 = 424 lbs-force, which sounds light to me. What is the spring rate of the washers?
@LionSandwich3 жыл бұрын
No. Think of it like there is 90psi on all exposed area of piston. In this condition the "affective" piston area is your calculation x 3.