M3 cooler on the M2

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sthone
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M3 cooler on the M2

Post by sthone » Thu Jul 05, 2018 1:16 am

M3Cooler50mm-1.jpg
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.

M3Cooler50mm-2.jpg
I kind of just eye balled the placement when designing the bracket so the air flow would point right at the nozzle.

M3Cooler50mm-3.jpg
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.

M3Cooler50mm-4.jpg
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.
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jferguson
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Re: M3 cooler on the M2

Post by jferguson » Sat Jul 07, 2018 4:31 pm

pretty slick. what filament?

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sthone
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Re: M3 cooler on the M2

Post by sthone » Sun Jul 08, 2018 12:52 am

The test was done with PLA.
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Vandal968
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Re: M3 cooler on the M2

Post by Vandal968 » Thu Aug 02, 2018 5:36 am

Nice experiment. Which blower fan do you use? I get a little warping on thin spires, I'm using the stock cooler with a wire guard (oem is very noisy) and a slightly different mount for an LED strip.

airscapes
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Re: M3 cooler on the M2

Post by airscapes » Thu Aug 02, 2018 2:00 pm

Vandal968 wrote:
Thu Aug 02, 2018 5:36 am
Nice experiment. Which blower fan do you use? I get a little warping on thin spires, I'm using the stock cooler with a wire guard (oem is very noisy) and a slightly different mount for an LED strip.
Remove the guards much quieter and a lot more air flow.

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sthone
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Re: M3 cooler on the M2

Post by sthone » Thu Aug 02, 2018 8:30 pm

Vandal968 wrote:
Thu Aug 02, 2018 5:36 am
Which blower fan do you use?
I use these Blower Fans I found on Amazon and the nozzle I made can be found HERE.

-Steve
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Vandal968
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Re: M3 cooler on the M2

Post by Vandal968 » Fri Aug 03, 2018 1:07 am

airscapes wrote:
Thu Aug 02, 2018 2:00 pm
Remove the guards much quieter and a lot more air flow.
Agree. I'm actually using a wire guard on the top fan that blows on the extruder to protect my Noctua fan, and the big fan that blows on the print itself has been unguarded for several years. I'm still very surprised that MG doesn't offer a "Quiet kit' for $80 that swaps the fans and guards and adds the nema isolators. I bet at least half of all customers would order it. Plus, almost every review of the MG lists noise as one of the few downsides. Mine is nearly silent thanks to these mods that I found on this forum.

cheers,
c
Last edited by Vandal968 on Fri Aug 03, 2018 1:14 am, edited 1 time in total.

Vandal968
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Re: M3 cooler on the M2

Post by Vandal968 » Fri Aug 03, 2018 1:13 am

sthone wrote:
Thu Aug 02, 2018 8:30 pm
Vandal968 wrote:
Thu Aug 02, 2018 5:36 am
Which blower fan do you use?
I use these Blower Fans I found on Amazon and the nozzle I made can be found HERE.

-Steve
Thank you.

cheers,
c

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