Dial Indicator carriage for Replicator / 2

There are many dial indicator support designs available; those which rest angled plastic on the rails are unlikely to tram accurately while those that clip to the extruders are not going to be highly repeatable in absolute measurement from use to use.

This dial indicator uses roller bearings in conjunction with hold-down magnets to provide excellent support stability and smooth and accurate and repeatable absolute tramming. A simple tramming coupler links the carriage with the extruder using magnets. The coupler has spacings for the correct lateral offsets for both modified and unmodified Replicator extruders. (The modification introduces a lever which collides with the dial indicator, requiring an additional offset.) Full design files are provided in Rhino3D and STEP formats. Carriage updated Aug 13, 2013.