Re: Banebot 56mm gearbox - double D - V3 - It's Show Time.
 

If a team wanted to make sure the pins fit, would they be better off removing pins from the old carrier plates and installing them in the new ones? are the holes in the plates the proper size for a good press fit with the old pins, or are they a tad too large?

Swapping pins is not difficult with common tools.

Re: Banebot 56mm gearbox - double D - V3 - It's Show Time.
 

For those of you making your own plates, how are you getting the double D in? That's not a common broach size I don't think. And I would think laser or waterjet is not accurate enough. Are you wire EDMing it and then filing down the edges on the shaft?

Re: Banebot 56mm gearbox - double D - V3 - It's Show Time.
 

We made both the plate and the shaft, with a square drive, because
the broach for this was cheaper than the broach for the hex drive.
The doubled broach is too hard to find. We then heat treated the plate
and shaft.

Note, banebots is supplying replacement plates. This could be your
best option at this point.

Eugene

Re: Banebot 56mm gearbox - double D - V3 - It's Show Time.
 

Where are the carrier plates on banebot? It looks like they remove them. Our team needs to order one today.

Re: Banebot 56mm gearbox - double D - V3 - It's Show Time.
 

For anyone wondering how to get to and remove / replace the output carrier plate in a 56 mm Banebots Tranny from the KOP:

1. At the output side of the transmission, remove the four small hex-socket screws in the 'chrome' transmission body.
2. The black outer bearing plate (and the shaft) now will slide off, but it is a tight fit so wiggle it or pry gently.
3. You'll see the five planet gears (brass-colored), and the one Sun gear (silver colored - note the 'double-D' projection from it!). Reomve all six gears - it is greasy, so have gloves handy!
4. The carrier plate it the thing that you just pulled those gears from. It also lifts off easily enough.
5. I do not know if replacement carrier plates are shipped with the 4 mm pins for the planet gears installed or not, but they can transferred if necessary, just use a small hammer and gently!!
6. Reassemble. Remember the sun gear has that projection facing the center of the trans. Apply good quality grease liberally. You must line up the projection on the sun gear with the indentation on the plate inside the transmission body, or it won't go in all the way!
7. Once the black bearing carrier is fully inserted, it can be turned so the screw holes line up. Remember that the mounting screw holes in the bearing carrier also need to be on the same side as those in the rear plate (by the CIM motor) !!
8. Install the four screws, tighten but don't crank too hard!

Note that if you installed a BaneBots encoder kit it does not need to be touched in any way for this procedure. If you want the encoder wires to come out from a different corner of the trans assembly, this is the time to do it.

Good luck.

Don