This is a spacer that is used to easily dial in the extruder height for the Makergear Mosaic printer.

Or it's a spacer with a mohawk and a spiked collar.

Because the Z endstop switch may be located differently from bot to bot verify and adjust the parameters as needed.

May be useful in other applications. The OpenSCAD file allows setting parameters to suit your needs.

This is one of the best wire strippers I have ever used. If setup correctly, it can be very precise and give feedback telling when the blades have cut deep enough.

Use:
Sight down the blades.
Align the blades with where the wire should be stripped.
Move the wire into the blades having the blades cut into the insulation.
When the blades cut through the insulation and contact the wire the LED will light.
Spin the wire or the tool to cut the insulation completely around the wire.
Remove the wire from the tool and pull off the insulation.

A set of parts for my Mosaic printer.

This is an adjustable spool that accepts different coil sizes in order to avoid having to wind or rewind filament on to a spool.

There is a central hub that attaches to 3 arms. each arm is made of 2 snap together sections. On each of the arms is a bracket and fingers that contain the filament. The bracket and fingers slide on the dovetail rail to make the spool adjustable. Tightning down on the M3 screw holds them in place.