I’ve been working on updating the calibration process for the new frames which use the “bottom feeder” approach where the chains feed off the bottom of the sprockets to the sled.
Overall I think it’s a great change. The chains are kept in plane, and they are stored along the top bar which keeps them out of the way.
The trickiest part seems to be how do to the calibration process, specifically the step where we use the chain to measure the distance between the motors.
In the past the chain fed over the top of the motor and then to the top of the other motor which worked well.
When feeding off the bottom it’s a little harder because the chain ends up crossing itself.
Does anyone have a clever solution?
Here are some pictures to clarify what I mean:
The issue only happens during the calibration process, not when cutting.