Very fine filament strings building up and causing load failures. How to avoid them?
It's all in the title. When printing a multicolor file tiny string of filament will build up in the selector or the orange PTFE-tube.
This will eventually lead to load failures and skipped layers.
Does anybody know what is causing this and how can I prevent it?
Re: Very fine filament strings building up and causing load failures. How to avoid them?
That looks like a temp issue have tried lowering or raising the temps, are you using the default profiles or your own made ones.
Re: Very fine filament strings building up and causing load failures. How to avoid them?
I am using a custom profile with ramming increased to 4 seconds, 3 cooling moves and the magic numbers "19" and "21" for loading speeds.
It really seems to be a temperature issue. I lowered the temperature to 190° (PLA) and the print worked out much better. Still not succesful, but at least it did not jam because of those "hairs". Instead it appears that my tips are not good enough. They are not "flat" but have a little "pig tail". Seems like I have to play around with ramming and cooling a lot more.
Re: Very fine filament strings building up and causing load failures. How to avoid them?
Any progress on solving this? This has been my failure point ever since I solved more fundamental problems.
Re: Very fine filament strings building up and causing load failures. How to avoid them?
Usual way to solve this is to adjust temperature. Start with adjusting down. If that doesn't work, go up.
eg: With my usual ABS, I get horrible stringing at ~230ºC. However, at ~255ºC the stringing disappears entirely.
Re: Very fine filament strings building up and causing load failures. How to avoid them?
I had this issue with Inland white PLA (only the white) and couldn't solve it. I switched to another brand (Amazon) and haven't had problems since.