The Archim2 is a popular open-source hardware driver for a 3D printer. The ChipShover can also be built using this board, although it has some limitations and is not supported in any official manner, but instead presented as a community build information.
Archim2 uses the less powerful TMC2130 (1.2A RMS coil current, vs 2.0A RMS coil current on TMC2660 used in ChipShover-One). The primary effect of this is that microstepping may be more likely to lose steps, so a smaller default microstepping value is used. You can however easily adjust this default value, so it's not a hard limitation of the platform.
To build the Archim2 option, you will need:
- Archim2 with Optical End-Stops. You won't use the end stops, but need the connectors from it.
- 3x Small Heatsinks (see note below).
- 1x 24V, 40mm fan, 2-lead input (suggested: 109P0424H302)
- 1x 3D Printed fan holder
- 2x M4 screws (for fan)
- 2x 4-40 or M3 screws (for fan holder)
Driving the motors will require a heatsink on the Archim2. The easiest solution is to buy the widely available "Raspberry Pi Heatsink Pack", such as FIT0542 for less than $2.
You'll only need the smallest heatsink from each pack, so buy 3 packs as you need heatsinks on each X/Y/Z.
The heatsink alone might not be enough, so also plan on getting a 24V fan. We'll use the built-in support for driving a fan (designed for use with the 'extruders').
You'll also need the driver cables for your motor.