LitePlacer.com forums

I have just completed a fun build of LitePlacer V2. The build went well without any surprises. The only challenge was getting the tube/nozzle aligned and the lower limit switch set properly. The build is documented at: https://github.com/BenWeinberg/LitePlacer-Project Thanks to Juha for your help an...

On the schematic LP_Vac_Wiring.jpg, there is a switch labeled "Adj. Vac. SW." between the Spin pin of the TinyG and the mosfet for the vacuum pump. What is the purpose of this switch?