Sunlu S1 filament dryer upgrade (spool jam fix)
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Small upgrade for hanging the filament spool. 10mm bearing diameter
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- Creative Commons — Attribution
Sunlu S1 filament dryer - has an inherent flaw - sometimes spools near completion (i.e. light spool) can jam in the dryer. Jamming causes for the print to fail, and on engineering filaments - it can "bake" inside the nozzle making it uncleanable.
There is a similar model (https://www.printables.com/model/419403-sunlu-s1-filament-roller-and-binding-fix), but this one is designed from scratch, no unnecessary fillets and bevels, designed for FDM print and made much stronger. Also note - this model is for 10mm bearing on a shaft(model mentioned in the link is for 12mm). 100% infill, ABS preferrable (due to high temp in the dryer). Has a "lock" for a bearing when seated.
Please make sure that the shaft rotates freely on a bearing - the shaft MUST NOT rub on a printed body. If your printer is dimensionally accurate - it will print without any need of filing and or sanding.
Solidworks file included - modify to your heart content, but please share.