Comment on Inline filament drying prototype
callcc@lemmy.world 4 months agoYou “just” need a longer distance inside the drying chamber. This could be achieved by coiling up the space where the filament travels through and guide hot and dry air through that space, ideally from the outlet towards the inlet. That air could maybe be pulled from the hotend cooler.
Grippler@feddit.dk 4 months ago
Yes, that’s also what I already mentioned in the other comment…but pulling filent through a coil will also introduce significantly more resistance than 0pulling it straight, which might be an issue at high speeds and cause under extrusion.
callcc@lemmy.world 4 months ago
Sorry, I completely didn’t read all of your comment. You’re right about resistance but then again the filament won’t need to touch the enclosing coil at a large surface. In the usual bowden tubes, you have a lot of contact surface between tube and filament but this would not need to be the case in the drying coil. In the end it would all depend on the application. I’m not interested in very high speed printing (yet) because my machines are all pretty slow :).