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gnea / grbl-LPC

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M9 not working on mks #18

Open mikolo90 opened 5 years ago

mikolo90 commented 5 years ago

Hi. I'm running my DIY laser with mks sboard 1.3, firmware for TTL 1.23 and solenoid connected to pin 2.6 and lightburn. I've got problem with air assist - it turns on as gcode is executed, but doesn't turn off. If I turn off USB and power supply for rest, solenoid closes, as i turn USB first for board and later power supply for all other stuff, solenoid stays closed, but if power supply is turned on first and USB later, solenoid is opened. Is it configuration problem?

mikolo90 commented 5 years ago

this is gcode generated by lightburn:

; LightBurn 0.9.02 ; GRBL-LPC device profile, absolute coords G00 G17 G40 G21 G54 G90 M4 ; Cut @ 50 mm/sec, 1% power M8 G0X53Y79 G1Y118S10F3000 X90 Y79 X53 M9 G1S0 M5 G90 ; return to user-defined finish pos G0 X923 Y740 M2

In this case machine reacts to M8, but not M9.

cprezzi commented 4 years ago

This problem has been fixed in my fork at https://github.com/cprezzi/grbl-LPC.