I understand thinking it could be material…as I had a few times where I thought that but it ended up being something else.
I went through about everything you could while running Nylon 12 GF and spent over a year dialing it in. I will tell you that the one thing that fixed nearly every issue I had… was switching to a 70% refresh rate for Nylon 12 GF. (Hence switching to Nylon 12 as it was just not cost effective to run production parts in GF)
Below that, I’d get all sorts of random issues and inconsistencies and depending on your pack density… have you tried putting 100% Nylon 12 GF in it to see if there is a change…?
When you have multiple build chambers doing the same thing… I would lean towards something in the printer… but you have a Chamber “jamming”…? Not sure what that even means… but I’d probably start there…
I will say… that whenever I have had major issues pop up…they seem to hit you from every angle. I would be printing beautifully for months then all of a sudden WHAM! It would be multiple problems happening at the same time like a pack of Gremlins came in and started tearing out wires… just have to cancel them out one by one.
If for some reason you think its a powder mix issue… empty the hopper and put fresh 100% in
If you think it’s a chamber…run another chamber.
Make sure your heat bulbs are not covered in brown burnt powder and clean and replace those and the filaments inside are good (I replace my heat bulbs ALOT…2-3 sets a year so far)
Try another IR sensor (I now have a 3-4 extra sitting here on standby from past troubleshooting
Check your doser roller (Like I said this last issue ended up being a loose coupler on the roller motor which caused all my chambers to fail… we had to pull the entire back off the machine to determine that one…
Just gotta go step by step and cancel them out one by one and whenever the system is running flawlessly… NEVER UPDATE FIRMWARE haha
AND like I mentioned ALL my Nylon 12 GF issues were resolved by bumping up to a 70% refresh rate. In my opinion there is no way you can run a 30-50% refresh rate when using Nylon 12 GF…that just is not possible. Maybe 60%…but it was not till 70% refresh rates that I would run Nylon 12 GF consistently.
I have come to the point where I know we need two Fuse printers as someone running production parts…so that one of them will be up at all times. Formlabs support, while responsive, can go on for multiple weeks and that is too long to be down a printer.
This is Jakob of the customer service team.
I wanted to chime in here for a couple points.
I think I found a conversation through one of our partners for your printer, but would you mind sending me a DM with your e-mail and possibly a case number if you have one? I want to make sure, I’m checking the correct conversation on the backend.
In addition to this, you wrote that you are experiencing “the same issue” are you speaking of the the general print issues that were spoken about in this thread (just asking as other things were discussed as well)?
Would you mind sharing some pictures of parts you printed?
I’d also be very interested in a couple pictures or a short video of the powder you were speaking of seeing the glass particles in. Is this powder that went through your post processing or fresh powder?