u/armorink

My previous post https://www.reddit.com/r/BambuLabA1/s/k9ljTvYjz8

At the point of the video above I have

- factory reset the A1

- uninstalled and removed configs from Lab and redid software

- replaced the heater assembly with a ceramic unit

- replaced the feed gear with a metal unit

- I can extrude without the hotend without any clicks so I don't think it's the motor or gear

- the nozzle on this print is brand new and had only done a flow calibration before this that wasn't great

I'm just printing with sunlu pla+2.0 which I've printed dozens of spools of since getting the machine. Not a tricky material haha

After the initial layer of this print I got a clog error, there was no clog, hit resume and it proceeded to feed normally as it cleaned nozzle and resumed the print and started clicking again

I have ruled out everything I can think of at this point beyond something wrong with the board or power supply. I'd think thermistor but that was changed vis the new heater assembly right?

Any ideas are welcome. Blondy277 was very helpful in having another set of eyes earlier.

I'm having trouble with flow/extrusion. You can see/hear the feed motor stuttering here.

Above video was with a BRAND NEW hot end.

Steps taken before the video above

- replaced spool (using sunlu pla+2.0 which I've been using for a long time now)

- replaced the heater assembly with a ceramic unit

- replaced the feed gear with a metal unit

- have tried 3 different .4 nozzles

- updates firmware

- updated software

- attempted to do calibration of flow rates, not very successful

- attempted edits to my settings (I've been using since last winter with great results)

Does anyone have any ideas on other things I can try or ideas of potential causes? I can say that the nozzle look to be getting dirty very quickly where as I ran for months without issue before.

I'll try to add more photos/videos via comments? I can't seem to add more to post. (Sorry I don't normally post on read)