Dwell Issue with GRBL Using a Laser

Appears there is a delay in GRBL (v0.9) with the issue of the M03 spindle direction command GRBL will delay its movement to allow time for the spindle to spin down, reverse and spin back up.  So instead of using M03/M04 for rapids, we have switched to using PWM (Pulse Width Modulation) using S0 to set to the lowest level (basically off) and S1000 for full power.

Arduino Uno Ultimate Starter Kit -- Includes 72 page Instruction Book

by - [Vilros]
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