Thanks for all the info. The taper discussion was very helpful and interesting.
I want to see if I'm understanding your ideas correctly, so here's another quick sketch. Hopefully it's decipherable. The top is the same collet sketch. bottom left: rack and rack, bottom right: split nut...
Thanks, Baluncore. I need to digest all the information you've given me here. I really appreciate your interest.
We are a group of senior mechanical engineering students, and this is our first real engineering project. We are designing a knee with specific attributes to conform to the athletic...
OK, thanks. F is the force being applied and V is the velocity vector of the rod.
By reactive materials, what do you mean?
Do you think the collet will unclamp easily, to allow the shaft to move freely again, or would you spring load it?
Again, thanks for the help. This seems like it...
Great idea! I think so at least, it's hard for me to picture.
So friction stops the rod? Do you think that can hold up a persons weight?
Can you recommend an example that I can search for? The only context I can find is drill chucks.
Thanks to you both.
I like the hydraulic cut off idea. Is it possible to do that in a way where the fluid will not be restricting the movement of the piston when the valve is open? (not slowing the piston down while forcing fluid out of or sucking fluid into the cylinder)
Baluncore, I'm having...
Hey, I'm trying to design a part for a prosthetic leg.
I need to stop a piston moving within a cylinder at any point in its motion. (this will happen when the patient puts weight on his foot)
I was thinking about having the piston turn a gear, and then when it's time to stop it, another...