Printermods XChange ABL Plate Adapter

Teachingtech's ABL mount for the Printermods XChange system works pretty well, but it only triggers the X axis limit switch if you have the X carriage mounted to a linear rail. I added a “flag” to the lower left of the ABL mount to contact the limit switch if you use the XChange system with Printermods' optional v-slot wheel plate. 

Edit: Tweaked the model to better clear the X limit switch holder. Also made and included a model with larger holes for threaded inserts.