KoP ToughBox Mini and CIMs Problem/Solution

[G Fawkes]

Originally Posted by Shu

We did not get the Toughbox Mini's in the KOP because we opted out of the driveline for the voucher. We ordered the TB Mini's separately and we are having the same issue. The output shaft will turn in one direction but will bind when turned the opposite direction. There seems to be some sort of interference between the CIM output gear and the large gear it interfaces with. I pulled some spare gears from other Toughboxes and exchanged them with the new ones it did not make any difference. I am using both the CIMs from the KOP and 2 additional CIMs I ordered from VEX. I don't seem to have a hole alignment issue with the CIMs but will try some older CIMs tomorrow.

We had the same symptoms as this. In our case the students used a R6ZZ in place of the FR6ZZ bearing so the bearing in the metal face plate fell out and caused the gears to lock when turned in the one direction. Could also be caused by not installing the FR6ZZ bearing with flange on the inside. Instructions could be a little clearer on this for the students.

Should be easy to check, just look at the metal output plate and there should be 2 bearings visible.