VSlot Roller Stop

thingiverse

Update 03/15: If you decide to use this as a Z axis stop, make sure the stallGuard threshold is set low enough to prevent the Z motor from bending the bracket down and warping the rod when using sensorless homing on an Ender or similar printer style. I'm currently testing another type of stop that fits over the threaded rod and stops the carriage at the nut, but it's not yet ready for use. Brave souls who employ sensorless homing will find this useful if their printers utilize V Slot rollers to move around - it provides a safe surface for them to run against without damaging anything or creating excessive noise. Those who don't use sensorless homing can still benefit from using this Z axis stop to prevent carriages from moving into unwanted areas. Instead of crashing the nozzle into the bed, this design allows the wheel to seat and apply holding power as more force is applied by the wheel - similar to a wheel chock for a car, except for printers. To install this stop, you'll need one M4 x 10mm socket head screw and a nut that fits your extrusion. Printable nuts are available online. This is the first release of this design, but since it's not a heavy filament part, feel free to provide feedback if it doesn't work for you - I can make adjustments as needed.