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Just a short post on the current state of compressed air cooling.

I am currently testing the Merlin extruder, i decided to name it in the same way as the hotend since the two belong together, which uses compressed air from an aquarium membrane pump (bubble pump). A medium size pump is sufficient for one hotend and one part cooler.

I made the mistake of ordering a larger pump than needed, which makes the printer unnecessarily loud due to to much air hissing out of the small gaps. On the up side, i might be able to push the Merlin hotend beyond 260°C with this. 🙂

 

Compressed air part cooler

Merlin Extruder with compressed air hotend and part cooling

Merlin Extruder with compressed air hotend and part cooling

Merlin extruder with compressed air cooling