Total noob question - does the Snapmaker extruder module have a part cooling fan integrated? I noticed there are two openings in the black plastic on the bottom directed towards the nozzle. I took the cover off the side of the extruder and looked at the fan, but for the life of me can’t tell where …

Yep, part cooling fan is in place. Can be controlled via standard G-Codes - try it and hold your finger below - you’ll feel the air flow: M106: Sets Fan on full speed --> Air flow clearly present M107: Fan off --> Air flow gone M106 Sxxx: xxx anything between 0-255 - 0 = off, 255 full blow. Try 2…

Thanks, @Hauke . Anyone have any thoughts on whether adding more cooling is helpful for PLA and PETG? Reason I’m asking is because my prints are still coming out a little ragged. I’ve calibrated the extruder and run temp and retraction towers. I’ve also experimented with the layer height and speed …

Cooling is mainly helpful when doing overhangs - you’ll fail without cooling there, unless you use a lot of support structures. Can you send a few pictures to understand what you mean with “ragged”? I usually print PLA with 100% fan on. Perhaps this here helps you: https://www.simplify3d.com/suppo…

@Hauke - Thanks for the link to the troubleshooting guide. That’s a great resource! I’ll take some pics and get them uploaded tomorrow. In the meantime, I tested the fan. At full speed, you can feel air, but it’s not what I’d call a lot of air. Would more air be better to reduce stringing, or doe…

The cooling fan IMHO is mainly for overhangs, where the plastic needs to cool down as fast as possible not to be pulled down by gravity. And for the few prints I did with Snapmaker overhangs were a pleasant thing - just worked across several centimeters. So I’d deem the fan good enough. Stand to be …

Thanks! For the heck of it, I might make an auxiliary cooling fan. Will let you know how it goes.

Please keep us posted! And look around on Thingiverse and/or Facebook - I seem to remember that other users already created auxiliary fan mounts for SM2.

I also have the feeling that the part cooling fan is very weak. Just FYI: the Hot-End cooling fan is the radial-fan on the PrintingHeadSide. the PartCoolingFan is the axial-fan on the Bottom of the PrintHead housing. Has anybody replaced the part cooling fan with a device with more air flow?

Thanks a lot, exactly what I needed. Will try over the holidays.

Part Cooling Fan - Does it have one?

Snapmaker 2.0 (3-in-1)

Franky November 30, 2020, 11:08am 10

FYI: 3DP Part Cooling Fan 5015 Replacement

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Part Cooling Fan - Does it have one?

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