When I use my 0.2 nozzle at the standard 0.1 layer height the extruder indicator jumps backwards like it is skipping/slipping on the filament.
I am taking a guess the back pressure is too high for the small diameter nozzle.
Do I need to raise the temps to compensate for the smaller diameter? Reset the flow rate in the slicer?
I was also having issues with a spool of filament (pine green color eSun acting like it is wet and brittle).
The only other filament I have had that issue with is Inland spooless red (made by eSun from what I am told).
Could the 2 issues be interrelated?
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I don’t have your printer but just checking on the printer setting is it set to .2 nozzle ?
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Is your .4 nozzle printing ok ?
What type of filament are you using ?
Like I said Inland filament (made by eSun). The 0.4 and 0.6 doesn’t skip/jump and I use bambu studio. There is the drop down to select the printer/nozzle combo.
I have the A1 standard with the AMS lite. And I have noticed the clicking also mentioned in other posts, kinda makes me think a set screw is backing out. I will have to investigate.
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What is your eSun+ Max volumetric flow setting @ ?
Ok that is a max speed of 45 mm/s
Can you test .77 this will be 35 mm/s and drop the acceleration down for the next test and lets see what happens we just need a baseline setting to see what works.
The eSun+ I have run it up to 245 c depending on the color but using a .4 nozzle.
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Looking at it while printing, I am starting to suspect the gear pushing the filament jumping teeth and taking chunks out of the filament. Possibly a cleaning is in order? Just need to examine the extruder gear assembly.
Ya gear might be clogged up and will need to be inspected, maybe even check the nozzle out when you are working on it.
I know some people have had the extruder motor fail and make a clicking noise on the X1 but this should be on any nozzle size.
Keep us posted on what you find out.
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The clicking is the filament getting getting pushed back multiple times in a short period (still no ideas about that) . Upping the temperature helped with the skipping, but the first layer looked like it was too low and not enough room for the extruder to do it’s job. I looked at the pusher “gear” that is attached to the motor wasn’t too bad. Beyond that just a couple user errors. 
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Did you ever end up finding out what caused the issue? I have been having this problem for a while now and just upped my temps but it’s starting to not work or just become tedious! Please any solution to this?
A retraction setting?..25 letters
If not, All settings should be 1/2 what you run eith the normal .4 nozzle. half flow/ half speed. Possibly even slower retract speed.
After 6 years with the Ender 3, I bought a Bambu Lab A1 this month. I tried the 0.2 nozzle and saw that at slower speeds the filament jumps in the extruder. From the tests I did, it is only associated with slower speeds (+/- 30 mm/s). I have a “fillamentum extrafill” filament with the standard flow (0.98). Attached is the video of what happens.
Thanks
Hi I recently installed a .2mm nozzle too. I setup the printer with the .2mm my installing a new printer. I also changed the .2mm in the firmware of the printer itself. When printing or in control mode just extruding out the motor continually skips. Can someone please tell me the solution to this?
Bonjour j’ai voulu tester une buse 0.2 mes impossible l extruder saute rien a faire je comprends pas si quelqu’un peut m aider
Hello,
I encountered similar issues with the 0.2 nozzle and the textured PEI plate (under-extrusion, the nozzle seeming too close to the bed, clicking noises from the extruder…).
I was able to resolve these problems by modifying the following block in the printer settings - Machine G-code:
Original code:
;===== for Textured PEI Plate , lower the nozzle as the nozzle was touching topmost of the texture when homing ==
;curr_bed_type={curr_bed_type}
{if curr_bed_type==“Textured PEI Plate”}
G29.1 Z{-0.02} ; for Textured PEI Plate
{endif}
Modified code:
;===== for Textured PEI Plate , lower the nozzle as the nozzle was touching topmost of the texture when homing ==
;curr_bed_type={curr_bed_type}
{if curr_bed_type==“Textured PEI Plate”}
G29.1 Z{0.06} ; for Textured PEI Plate
{endif}
0.06 might be a bit high, so I will probably try again with 0.04, but feel free to test and adjust accordingly.
Thank you @user_3970330681 !
This was my issues too. I swapped to +0.02 (still bad), then tried +0.04 (only 1 click, but still looks over extruded), +0.05 (BEST), +0.06 (Good).
Tempted to check / tweak on the 0.4 nozzle now!
Please ensure you Reboot the bambu machine after you change to the .2 nozzle in the maintenance
Really? I’ve never tried this but maybe it does something?
Thank you so much! I had a similiar issue with the cool supertack plate, where the extruder would start clicking and no filament would come out for a few seconds (while the print head was still moving). I added this code (using a +0.02 offset) after the textured plate section, and it fixed the issue perfectly.
;===== for cool supertack, adjust the calibration ==
{if curr_bed_type=="Cool Plate SuperTack"}
G29.1 Z{0.02} ; for Textured PEI Plate
{endif}
do i have to change it back when i swap for 0.4 or 0.6 nozzle?