pic: Prototype Drivetrain v2

[EricH]

*curses at VB's not putting spaces in right*

If you've ever seen a dovetail joint, it should be fairly simple to figure out. Look at a standard door hinge; that's a fairly common dovetail application. Now replace the pin with an axle, and the screw plates with swing arms. You'd need to change the geometry and check the stresses, but that's pretty simple to do.

[548swimmer]

Originally Posted by EricH

*curses at VB's not putting spaces in right*

If you've ever seen a dovetail joint, it should be fairly simple to figure out. Look at a standard door hinge; that's a fairly common dovetail application. Now replace the pin with an axle, and the screw plates with swing arms. You'd need to change the geometry and check the stresses, but that's pretty simple to do.

Door hinges aren't dovetails, are they? I always thought dovetails looked like this:

/_\ or \_/-\_/-\_/ with the dashed part cutout and bottom line at the top

[EricH]

Originally Posted by 548swimmer

Door hinges aren't dovetails, are they? I always thought dovetails looked like this:

/_\ or \_/-\_/-\_/ with the dashed part cutout and bottom line at the top

It can go either way, straight or angled. I think the technical term for a straight dovetail is a mortise and tenon.

Either way, I was referring to the door hinge style.

[548swimmer]

Originally Posted by EricH

It can go either way, straight or angled. I think the technical term for a straight dovetail is a mortise and tenon.

Either way, I was referring to the door hinge style.

Alright, now I'm more confused...

So I would make a tenion joint between the carriage and the shaft? That doesn't make sense... Or between the carriage and the side plate?

I think a better graphic would help the most honestly, I don't want to place any extra work on you though, but if you could I'd love to see your way of fixing this problem.

[EricH]

Door hinge is still the best description I can come up with.

For modeling, take a door hinge and replace the plates with arms of the length you'd need. Replace the pin with the axle.

Note that some geometry would probably need to be changed to accommodate robot dimensions and stress.