Banebots 42mm gearbox: Recommendations for use

[AdamHeard]

Originally Posted by ZZII 527

That really, really stinks. I have been pulling for these little gearboxes, but I haven't heard any good stories recently. Could you elaborate on the nature of the failure? (Was it the double-D, the twising, the shearing of gear teeth, or all of the above?) My current thinking is that we will continue to use the softer-than-usual plates and just monitor the backlash carefully. At least it is a slow failure mode and I have an idea of how much the plates can handle. If I put in harder ones, it may just doom the next weakest link, whatever that is. Sigh...

Sorry to hear about it and I hope your AM solution works out.

Well, I haven't taken them apart to look. But, it appears that shaft misalignment may have been the issue. If you look at this picture you can see the second plate which supports the shaft moves up and down to tension. They both do, but they are not connected; We think they appear to be aligned but may be slightly off.

We are in a predicament now though. We already bought the AM gearboxes so we will probably go with those anyway. We have added standoffs to the plates to keep them in unison though.