3rd Print on new MK4 Kit in Taulman Alloy 910 Black - benchy
Had some old alloy 910 kicking around - dried in food dehydrator for about 12 hours. Smooth PEI plate roughed up with 800 grit wetdry and diluted elmers white glue. Other than the smokestack. I am impressed with my 3rd print.
What should I do to troubleshoot the smokestack? Printed at 255/60, no fan. I think it's a speed issue for the stack?
RE:
What kind of filament is this? I mean material. PLA, PETG...? The collapse of the chimney is caused by too high a temperature of filament and turned off cooling, when the lower layer does not solidify enough.
RE: 3rd Print on new MK4 Kit in Taulman Alloy 910 Black - benchy
According to it's MSDS it is a Polyamide copolymer, Nylon 6/69.
RE: 3rd Print on new MK4 Kit in Taulman Alloy 910 Black - benchy
I'm using a Prusa MINI with E3D Revo Micro hotend and textured PEI sheet. I had success printing 910 Alloy with the hotend at 245°C and bed heater off. Setting the heater to anything above 35°C resulted in failed prints. The print would warp and lift off the build surface.
RE: 3rd Print on new MK4 Kit in Taulman Alloy 910 Black - benchy
The chimney issue on the Benchy, in al likelihood, is because of the fan being disabled. Even nylon filaments need some cooling when layers take less than 15 or 20 seconds to finish. If not, there isn't enough time for the filament to solidify before the next layer is printed on top. I bet that if you had printed two instances of the Benchy in the same job they'd come perfect. For a single copy, try to set the fan at 25-30% for layers taking less than 20" and see if there's improvement, Of course, no need to print all the Benchy for a test, just the shaft.