Just waiting for a way to spend a little less or save up a bit more
Question, that may have been answered b4
Can I connect my heat brake fan to the board and configure it to bring that fan on based on hotend thermistor temp?
E3d V6 30mm fans are damn noisy and it would be nice if it was off until the hotend hits like 50c and its actually needed....
Unfortunately I can't tell whether that endstop will work on 3.3V from the photos. Some optical endstops work OK on 3.3V, and the others can normally be made to work by changing one resistor.
If you connect two of those in parallel, then you may need to disconnect the LED on one of them, because otherwise the opto switch on one of them would have to drive both LEDs when only one filament is present.
Delta printer calibration calculator, mini IR Z probe, and colour touch screen control panel: [escher3d.com]