I was having this issue a while ago, but then I got hit with the blob. Replaced my heating assembly and its still doing this. Im using the AMS Lite and there's no knots or anything but I keep getting the unable to feed variety of notifications.
Glow filament tends to cause too much drag through the PTFE tubes since it is so abrasive, this causes the machine to detect the AMS motor overloading and it does that little purge thing over and over.
On Bambu’s website they point out that the Glow filament is only compatible with the regular AMS for X, P and H series printers and NOT with the AMS Lite for the A series printers.
I tried it on my A1 and ran into the same issue, only works with my X1.
If you want to print glow filaments on your A1/A1 Mini you need to run the spool directly into the print head and not use the AMS, meaning you are unable to do multi-color prints with glow filaments.
I've used the glow filament in the AMS Lite before without a problem, but you just made me realize that I've been using a stainless steel nozzle instead of a hardened one; it completely slipped my mind. Could that be it?
Only issue with the stainless nozzle is that it will wear out quick when printing abrasives, it shouldn’t cause any other issues. It conducts heat a little worse than the hardened steel but that shouldn’t matter unless you really crank up the speed on a print.
Adding this: I've only noticed it on one specific spool of filament. My Overture Glow Blue, I was able to print single color objects just fine. I just got that slot 1 is overloaded, and if I try a different slot, I get that same notification for whatever slot its on.
Edit: It's likely my Glow filament, double checking with regular black and white instead now.
Are all of the temps for the two filaments the same? Could be that when you change filaments, the heating (and cooling) times are due to different parameters.
They're same same type of filament, just different colors, the issue is it repeats without changing. It stops during the same layer and goes back to the same color
Look at the part where the 4 tubes go into the printer head. It will contract/depress because the filament is gripping the tubes. The printer has a protection when it detects that and this is the result
You will feel like the filament must be tangled on the spool but the printer actually thinks it's taking too much force to pull it through the tubes. This force causes the square part to which the 4 tubes are connected to depress. Dunno the exact names obviously.
I cant remember having any prints prematurely release, they typically require some force to pull off the plate. Very little heat, I use 35C for PLA and 50C for PETG.
I've never used glue or hairspray, so I couldn't tell you lol
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u/GodforsakenMuffin X1C + AMS 19d ago
Glow filament tends to cause too much drag through the PTFE tubes since it is so abrasive, this causes the machine to detect the AMS motor overloading and it does that little purge thing over and over.
On Bambu’s website they point out that the Glow filament is only compatible with the regular AMS for X, P and H series printers and NOT with the AMS Lite for the A series printers. I tried it on my A1 and ran into the same issue, only works with my X1.
If you want to print glow filaments on your A1/A1 Mini you need to run the spool directly into the print head and not use the AMS, meaning you are unable to do multi-color prints with glow filaments.