Skip to main content


Showing posts from 2022

Using the BIQU Hermit Crab CAN

I was recently offered to try out the BIQU Hermit Crab CAN.  This was great timing as one of my printers was down due to a bad thermistor cable in the cable drag chain.  I was in the process of removing the wiring and also replacing the drag chain to an open style which allows me to open up each segment and easily add or remove wires.   What is the Hermit Crab? The Hermit Crab is a quick change tool, which allows you to easily and quickly change out your tool. For example, you can change to a FDM extruder, or a laser engraver, or a cutting tool, or whatever you want. The CAN version uses just one USB-C cable (doesn't use USB protocol, just uses that style cable for convenience). The USB-C cable carries the data and power to the hotend. The CAN version has a bunch of nice features such as accelerometer, Neopixel RGB LEDs, and TMC2209 stepper driver. Current setup In this photo, you can see my current setup as I'm in the process of rewiring.  I've got an Orbiter extruder with