pic: Drivetrain Concept

[Dunngeon]

Originally Posted by dragon_pilot

So basically nonadrive but without gearboxes?

Yup, Nona(9) and Deca (10) Drive are both variations on the H-drive setup. The only difference is how many wheels they use for the lateral movement

[echin]

I just realized that I never posted a newer rendering so, 12 revisions later, here is the newest version. I changed a bunch of things, the most notable being changing the configuration of the main drive gearboxes slightly and changing the center wheel assembly to a piston actuated two wheel setup with two speeds and a position where both wheels are up. I also modified the wheel modules to make the actuation more robust and moved the chains to the outside tube to make maintenance easier.
Latest Render
We are planning on making this version, but we are not going to do the traction wheels because they add a lot of cost (around $400).

Originally Posted by dragon_pilot

So basically nonadrive but without gearboxes?

I'm not sure what you mean by not having gearboxes, but any drive is going to have some kind of gearbox. This just has the gearboxes integrated into the frame.

Originally Posted by echin

I just realized that I never posted a newer rendering so, 12 revisions later, here is the newest version. I changed a bunch of things, the most notable being changing the configuration of the main drive gearboxes slightly and changing the center wheel assembly to a piston actuated two wheel setup with two speeds and a position where both wheels are up. I also modified the wheel modules to make the actuation more robust and moved the chains to the outside tube to make maintenance easier.
Latest Render
We are planning on making this version, but we are not going to do the traction wheels because they add a lot of cost (around $400).


I'm not sure what you mean by not having gearboxes, but any drive is going to have some kind of gearbox. This just has the gearboxes integrated into the frame.

That entirely milled out tubing looks like it will bend like a toothpick. Add some more supports in there

[echin]

I was planning on adding an upper structure for mounting bumpers, but you're probably right. To anyone who has made a chain in tube drive, how much more difficult would it be to put the chains in if I were to close off most of the open section of the outside tube? My other thought is adding a few U channel braces on the outside of the tube to make it a bit harder to bend.

[BrendanB]

Originally Posted by Andrew Lawrence

That entirely milled out tubing looks like it will bend like a toothpick. Add some more supports in there

Its an offseason project not intended to see a field (or else there would be a lot of changes).

Originally Posted by BrendanB

Its an offseason project not intended to see a field (or else there would be a lot of changes).

Ah, makes sense.