Simple Print cooler
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There are a lot of part cooler designs out there but most I came across were with some major cyclic…
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- Creative Commons — Attribution — Noncommercial
There are a lot of part cooler designs out there but most I came across were with some major cyclic shortcomings. Like:
- Some are brilliant/effective designs but they are complicated and need cooling and supports to prints.
- Others are simple to print but ineffective in cooling the part from all directions. (or end up de-stabilizing the hotend PIDs by blowing air into the nozzle)
I set out to correct it for my own use and found this design to be extremely effective and hence posting it back to the community
This is a simple part cooling duct. Attention is paid to:
- make it easy to print without support or cooling enabled.
- Easy to assemble and mount without complicated dependencies.
- Very effective part-cooling
- Avoid blowing air onto the hotend (nozzle/heater-block)
The part is printed as 3 sub-parts.
Print Settings
Printer:
Prusa i3 (clone)
Rafts:
No
Yes
Resolution:
0.1mm
10-20%
Notes:
Printed in PLA. Could be done in PETG / PC / ABS
You can print without supports. But it is good to print with supports.
Assembly
Glue the parts with CA (use a CA-kicker if required) using the photos as reference.
I would also suggest running a thin layer of CA on the outside of the model.
Refer to the photographs for mounting ideas. make sure that the printed part has at least 1-1.5mm gap from the heater block and the nozzle is approximately centered in the print-cooler duct recess. The part can touch the insulation for the heater-block(I do not use insulation on my heater block).
Printing Parts
Make sure you use a M106 (run print-cooler at full speed) gcode in the printer 'beginning gcode' settings. Place it before you start pre-heating the hotend.
If you have very long printing time for the first layer (greater than 3-4mins) I suggest that you keep the cooler fan on @ 10-20% (min running speed)
This design gives excellent print quality for overhangs and bridges (at least for PLA). Some example photos are given i this post.
Category: 3D Printer Accessories