TurboSnail Part Cooler for Pitstop Extruder
Optimized airflow, multiple outlet nozzles, integrated radial fan, and more
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September 25, 2023
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Great design. I went from constant THERMAL RUNAWAY errors to none with this design. The stock duct directs too much air directly at the heatblock. (edited)
Just a quick update for consideration: I've used this since January (over 7 months now). I switched from the RHD CS fan duct and have noticed undesirable print outputs particularly on the overhangs as well as adhesion on parts with small bed footprints. I have had multiple adhesion detachment when printing the leaf coaster tree trunk. (PLA with a good 5mm brim) Overhangs are also could be significantly be better.
I can only guess that it was due to the fact that the side air ducts are pointed directly downward. This may have caused more directed air at the bed, which causes reduction in adhesion performance due to it being cooled too aggressively. Meanwhile, the single center air duct pointing at the nozzle isn't producing enough cooling to handle the bridging/overhangs I needed.
I print primarily PETG and PLA sparingly. Could just be my machine temperatures, but I've now switched back to the RHD CS fan duct and it has returned my print outputs. Just food for thought.
I wonder if a combination of the specter's fan shell design can be merged with the RHD CS fan duct... (edited)
I printed the Turbosnail and it makes a high pitch whine/whistle sound. Is this normal based on the airflow path or is something wrong with my print?
The print came out beautifully and was very easy to install. I did break one clip of the fan when taking it apart but no biggie.
Initial testing seem to show this is an improvement over the shroud on the Pitstop but we'll see how it looks overtime.
Thanks for the share!
Just put together a Pitstop extruder, and went directly for this part cooling shroud. I really like the design, how it integrates with the fan. Things seem to be working fine, but when the part fan really revs up, there is some noise coming out of the shroud - I think that the fan touches something. Maybe I tightened the screws too much, will investigate.
Printed with Prusament PC, black. (edited)
Any updates on this? I too am using the PitStop setup and was considering switching to this.
@BlueThreadGea_106177 Have been using it ever since. No issues other than occasionally (very rarely) the fan may touch the housing, like I mentioned. This produces a click or two. That's it.
It seems that the part cooling is more uniform, but I have not tested this scientifically, so this very well may be confirmation bias kicking in.
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Do you find that the cooling air now directed primarily downward contributes towards “print lift”? I printed the part in ASA filament. (I have not installed yet.)
Looks great! I haven't noticed any additional warping since the change, and I've been printing a mix of large PLA and PETG parts continuously for the past two weekends.
Good news! Nice design - will post picture after installation. Thanks for the work....
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