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普鲁士微型可拆卸冷却管组件V2

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发布时间:2024/6/26 23:32:00
This is a revised X Carriage Mount and fan duct for the Prusa Mini and clones. Apologies in advance if there is already something similar on Thingivee that I have not noticed.
This thing IMHO improves the part cooling of the Hot End by providing focused symmetrical cooling to either side of the nozzle rather than the stock design pushing air to the rear of the nozzle and in some itances cooling the heater block rather than the part.
The Mk1 design cools quite well but a lot of the focus is not centred to just below the nozzle. After 30 plus test desig and CFD simulatio this veion provides much better focus to the target without too much air restriction. I am currenting printing 3D Benchies @ only 60% fan speed with sufficient part cooling.
The design includes a removable Blade Duct assembly to allow for ease of changing and maintaining nozzles. The assembly is based on a M3 thermal iert and a M3 x 8mm hex bolt. To achieve this design I also had to modify the Pinda Mount Bracket to clear the left hand duct.
THIS VEON IS NOT COMPATIBLE WITH THE V1 AND ALL PARTS REQUIRE REPRINTING.
In my tests\porotypes the parts fit very snuggly and there is no air bleed. If this is not the case after printing with these parts a small amount of Vaseline or similar on the connecting faces will probably cure this.
I have only tried this with my V6 based variation but cannot really see why this should not work for the stock setup. So untested with the stock heat sink and nozzle arrangement.
The parts do not need support if printed in the uploaded orientation except for the Blade duct which requires some custom supports to the duct apertures around the central fin.. There are some some surfaces that push the boundaries of draft angles but these are inherent of the original prusa design parts and not of choosing or design.
The test print so far IMHO are much improved and both my water nozzle tests and the 32 Sim Scale CFD simulatio I have undertaken have the air flow right in the ball park just below the centre of the nozzle which is usually a good indictor to suggest good part cooling rather than cooling the nozzle or heater block.
Link to M3 Thread Iert Used (Amazon UK Site):
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