Grinder with swappable system

Suggested Price: 3.00

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Suggested Price: 3.00

Disclaimer: No rights can be derived from the use of the designs or information on this website. Use of these designs is at your own risk at all times. Schone Engineering and Proper printing do not accept liability for any damage resulting from the use of the designs.


I made a Swappable hot end on which this grinder can be placed. I intentionally placed the female version of the d sub connector at the tool side because the mixed male version fits a regular female one and not vice versa.

The tool this holder is designed for is the RS PRO 398D PCB Drill which costs under €30,-
This grinder which runs at 12V which is the same voltage as the part end fan which I use to control this drill so you don’t have to enable it manually. Just send M106 and M107 to enable or disable this grinder.

I have just uploaded a 2020 t-slot plate which is an ideal build plate if you want to mill, drill of grind things with your printer.

I have made a video about this upgrade and it shows how I create a PCB with it. Have fun watching!


Print Settings

Printer: Creality CR-10
Rafts: No
Supports: Doesn’t matter
Resolution: 0.2
Infill: 20%
Filament: Nylon CF


As with my other tool holders it is printed with this carbon fiber reinforced nylon but I think it should work with other materials too. I am not sure about PLA since this part must be strong enough to handle the forces. I think PETG or ABS should work.

Mounting instructions

To prevent the printer going into error state you can connect a 100k resistor at the thermistor connections. The printer will measure 25°C.

If you want to add this to your printer you need the Quick tool change.


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