pic: Bit Buckets 2015 Offseason Drivetrain

[z_beeblebrox]

Originally Posted by asid61

Looks great! 47lbs is a very good weight with electronics on there. Electronics all seemt of it well, but you have some wasted space underneath that top plate.

I noticed that your hex axles have a deep groove cut right before the end. This will weaken the axle by a lot. Why is it there?
Pulleys also seema bit large... the belts won't intersect with anything, right?

EDIT: Out of curiosity, how does this go together? Do you make puzzle-piece edges and glue them? How do you get machine screws into joints?

We'll put more of the pneumatic components under the top plate, as well as some of the electronics you don't need to get to as frequently, like the bridge power supply.

The pulleys are 42t, the same size as on the AM14U. We checked that the belts clear the belly pan.

Ryan Dognaux's explanation of the axles in the post below yours is accurate.

It's all put together with mortise and tenon joints and captive nuts, as described in this (excellent) Instructables page.

More renders, as promised:

The drive pod, showing most of the powertrain, as well as some example T-nut joints:


The gearbox, which needs a little more work on mounting holes, as well as an encoder mount (Anyone have ideas on how to attach an encoder? Could it be attached directly to a CIM shaft? The gearbox's output shaft remains in the drive module when the gearbox is removed, so the encoder can't be mounted on that.):