remove need for HEATER_0_PIN if EXTRUDERS is 0 #18827
Merged
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Requirements
If you are using Marlin for a non 3d printer SanityCheck.h requires a valid HEATER_0_PIN
Description
I have modified the test so that if EXTRUDERS < 1 (ie no hot ends) you don't need a HEATER_0_PIN defined.
Benefits
More CNC/Non 3d printer friendly
Related Issues
Was raised on reprap forum https://reprap.org/forum/read.php?415,875542,875572
A user wanted to use D8,D9,D10 on his ramps for CNC things..