Prusaslicer 2.5.2 with FFCP (Sailfish 7.7) - Can't get layer cooling fan to run
 
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Prusaslicer 2.5.2 with FFCP (Sailfish 7.7) - Can't get layer cooling fan to run  

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Chuck W
(@chuck-w)
New Member
Prusaslicer 2.5.2 with FFCP (Sailfish 7.7) - Can't get layer cooling fan to run

Hi there. I've been Googling this for a couple of days, but not having any luck getting this to work.

In addition to our i3 MK3S+ we have an older Monoprice printer that is a FFCP clone running on Sailfish 7.7.

It's running through an Octoprint/Octodash set-up, and I have things set up where we can get direct load/print from Prusaslicer.

The problem I'm running into it I can't quite sort out what is needed to get the cooling fan to run, which causes problems on some more delicate of the prints with PLA.

A couple notes:
- The fan is good and works. Tested with with direct power, and checked with others who previously used this printer and they confirm that it works during printing.
- Original slicing had been done with Simplify3D. I'm trying to standardize, thus why trying to use Prusaslicer.
- Have tried both variants of the M106/M107 or M126/127 gcode commands with no success.
- I have the settings in the slicer set to run the fan all of the time and even to run  for the first layer (to save waiting time to test function)

I would appreciate any input that anyone might have to get this to work.

Thanks!

Posted : 17/04/2023 4:00 pm
Neophyl
(@neophyl)
Illustrious Member
RE: Prusaslicer 2.5.2 with FFCP (Sailfish 7.7) - Can't get layer cooling fan to run

What values were you trying with the various M commands ?  PS puts out 0-255 which translates to 1-100% but iirc theres some firmware that needs values in 0-100.  Worth a try.  

Posted : 17/04/2023 4:20 pm
Chuck W
(@chuck-w)
New Member
Topic starter answered:
RE: Prusaslicer 2.5.2 with FFCP (Sailfish 7.7) - Can't get layer cooling fan to run

Using 255, as that's 100%. SF uses the same values, from what I read.

I think I read that with SF 7.7, anything over 0 is going to run at full speed anyway. (No PWM , like with SF 7.8)

Posted : 17/04/2023 4:53 pm
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