QIDI 1 surging fan

[JensC]

Always works for me. I send the gcode over via my OctoPi.
I know though you are correct on x3g files via the SD card it does not work. If you check the box in S3D (it may be on by default) it saves both the x3g and gcode.

Reality Check (back to the thread topic)

1. Answer to my first original question:

The aux cooling fan plug near the extruders was defective. At rest it worked but when jerked around by the head in certain directions the fan power was intermittent. Fixed.

2. Answer to my second original question:

The code to turn on the aux cooling fan is M106. The code to turn it off is M106 S0.

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