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M3 cooler on the M2

Posted: Thu Jul 05, 2018 1:16 am
by sthone
MG finally released the M3 cooler STL's so I thought I'd give it a try on the M2. I enlarged the cooler to 126% so it would fit the M2 stock 50mm fan and had to make a quick bracket to fit my modify extruder drive. The new cooler definitely localizes the air flow right at the nozzle compared to just the stock fan blowing everywhere.

I kind of just eye balled the placement when designing the bracket so the air flow would point right at the nozzle.

The fan sits a little offset now because the cooler actually blows at a 45 degree angle toward the nozzle now. But this also allows it not to hit the frame when the carriage is parked.

I don't know if this is an accurate test but I just tried to print some 1.5" tiny cones to see what would happen.
#1 is with no fan.
#2 is with the stock fan and placement.
#3 and 4 are with the M3 Cooler
#5 is with a Blower type fan w/a nozzle.

From my quick tests the M3 Cooler works better than the stock fan and about the same as the Blower fans setups I use. I think I'm going to stick with the blower fans though just because they allow a better view of whats going on at the hot end.

Re: M3 cooler on the M2

Posted: Sat Jul 07, 2018 4:31 pm
by jferguson
pretty slick. what filament?

Re: M3 cooler on the M2

Posted: Sun Jul 08, 2018 12:52 am
by sthone
The test was done with PLA.