Transfer gearbox output at a 45° and 90 °angle?
 

A concept I had for climbing the pyramid involves getting power from the drive motors. It's based on our current climbing concept which I won't explain beyond saying that it involves 2 wide belts in the shape of a V and are at 45 degrees to the frame. The attached image shows my idea to transfer power from the drive train to the belt. What I don't have ideas on how to do are the circles with question marks in them. I don't have an idea on how to transfer power along those angles with enough torque to lift the robot. Thoughts?

Re: Transfer gearbox output at a 45° and 90 °angle?
 

The most obvious solution to me would be to use bevel gears. In FIRST, they are often used on swerve drive modules to transfer power from a vertical shaft to a horizontal one. I know they can transfer power at 90 degrees, but I'm not sure if there a bevel gears for a 45 degree angle. Bevel gears have pretty high tolerances though to keep them together. One other option which I don't know much about would be something like a universal joint (wikipedia or google image search).

Re: Transfer gearbox output at a 45° and 90 °angle?
 

One thing I forgot to put in the drawing is that I'm planning on putting a secondary gearbox somewhere on the shaft, as climbing speed doesn't need to be as fast as driving speed and the extra torque will help with climbing.

Re: Transfer gearbox output at a 45° and 90 °angle?
 

Look into Power Take-off systems.

Re: Transfer gearbox output at a 45° and 90 °angle?
 

The other option is the universal joint.

en.wikipedia.org/wiki/File:Universal_joint.gif

A quick google search should show you some examples. Though I will admit I don't know where you could buy one off hand and its not the simplest mechanism to machine in the world.