Under extruding and Clicking/ extruder gear
Hi,
I have used my Core one to print numerous prints with no problems out of the box. Randomly, a few days ago, I noticed a clicking sound coming from printinghead. Did some research and figured I would do all the recommended things. cleaned nozzle, cleaned and made sure extruder gear isn't clogged, ran gear calibration, made sure no obstructions in feeding path to nozzle. Did't do a cold pull as not familiar in doing on. I have tensioned and re tensioned the idler screws many times. I can get it close to running good but on faster extrusions in clicks and slips a couple times during the faster movement. Been testing running stock benchy pre loaded print.
Here is a video of whats happening.
This may not be related but this started happening after latest update.
RE: Under extruding and Clicking/ extruder gear
This is marked solved - curious what was the solution for you?
I have a very similar problem right now and haven’t been able to find anything that solves it
RE: Under extruding and Clicking/ extruder gear
This is marked solved - curious what was the solution for you?
I have a very similar problem right now and haven’t been able to find anything that solves it
Hi David,
The under extrusion/clicking started happening after changing from stock .4 HF brass nozzle to a Prusa E3D Obxidian .4 nozzle, an MK4 nozzle. I had about 30hrs or so of successful prints using the Obxidian .4 nozzle printing PETG and PLA. The clicking started happening while using Jesse Premium Golden glitter filament. I did all the usual per the suggestions from the forum in previous posts. I ended up putting back the stock brass .4 HF nozzle and have been happily printing since. Only one failed print and that was using the Golden glitter filament again....I think something is weird with that roll because I am using another roll of glitter filament from Jesse Premium and it is printing fine. What I learned, and I know better from being a machinist for the last 35 years, is if it aint broke, don't fix it. lol. saying that, I haven't put the E3D nozzle back in.
RE: Under extruding and Clicking/ extruder gear
I have the same noise, but it is very intermittent and almost impossible to reproduce. It is a random click and it drives me absolutely crazy...what is the solution?
RE: Under extruding and Clicking/ extruder gear
I have the same noise, but it is very intermittent and almost impossible to reproduce. It is a random click and it drives me absolutely crazy...what is the solution?
What material and only on first layer or also later into a print?
For some data: go into the menu - user interface - footer -> set the unused slot to "heatbreak".
I had some extruder skipping, when using my 0.25 mm nozzle and printing with some negative Z-offset. With the door closed, the heatbreak went up to 39°C (PLA), which was too hot to push PLA through the small nozzle.
Two solutions: open the door (a little gap was enough for me) and/or check the command in the custom G-Code for the filament settings. I currently forgot which one it is, but there's a one-liner to set the heatbreak target temperature. For PLA, it's set to S36, so 36°C. Putting in S32 helps a lot in my case, since the heatbreak fan was only spinning at 70% and had some headroom.
My room is at 22-23°C. If you're printing PLA in a warmer place, the heatbreak might struggle with the 0.4 mm nozzle and without the negative Z-offset.
RE: Under extruding and Clicking/ extruder gear
i think thats what my printer is doing, very frustrating. I switched my nozzle back to the .04 stock nozzle and its still doing it. it will print the first ten layers or so fine, then it will start messing up.
RE: Under extruding and Clicking/ extruder gear
When extruder is skipping it's usually because of low temperature. Hotend doesn't melt material fast enough and causing temporary clogs. Increase hotend temperature (or slow down prints) and it should be fine.
RE: Under extruding and Clicking/ extruder gear
Alternatively, heat creep due to door being closed. Activate the heatbreak temperature via the display: settings - > user interface - > footer - > free slot: heatbreak.
My extruder starts skipping with PLA at around 40-42°C.
RE: Under extruding and Clicking/ extruder gear
I had a similar issue that only presented itself at a certain layer height. It just clicked at random times and I couldn't work out what was going on. It wasn't until I let it run for a while that I noticed it had stopped extruding filament. After some cold pulls, and some advice from support, it continued to happen and I gave up with support around 9pm. After further investigation it turned out that the idler tensioner just needed increasing very slightly and its now not happened since. My only conclusion was that the filament was getting too warm after a time and became too soft for the extruder to pull the filament to the hot end? This is just a guess though as I'm still learning what's what. Hopefully it helps and good luck.
Scott
RE: Under extruding and Clicking/ extruder gear
Maybe this helps. https://www.printables.com/model/1072020-mk4s-bogie-idler-main-plate
solved my problems with TPU completly.
RE: Under extruding and Clicking/ extruder gear
The under extrusion/clicking started happening after changing from stock .4 HF brass nozzle to a Prusa E3D Obxidian .4 nozzle, an MK4 nozzle. I had about 30hrs or so of successful prints using the Obxidian .4 nozzle printing PETG and PLA. The clicking started happening while using Jesse Premium Golden glitter filament. I did all the usual per the suggestions from the forum in previous posts. I ended up putting back the stock brass .4 HF nozzle and have been happily printing since. Only one failed print and that was using the Golden glitter filament again....I think something is weird with that roll because I am using another roll of glitter filament from Jesse Premium and it is printing fine. What I learned, and I know better from being a machinist for the last 35 years, is if it aint broke, don't fix it. lol. saying that, I haven't put the E3D nozzle back in.
This has been my same exact experience. I thought I was doing myself a favor by buying a fancy nozzle, but I just made things worse. You can buy two brass nozzles for the price of one obsidian nozzle. It's just not worth it.
RE: Under extruding and Clicking/ extruder gear
As originally posted, I went from a high flow stock brass nozzle to a non hi flow obxidian nozzle and I think that was a big part of the problem.
Just last week I was printing and started getting the clicking again with stock brass nozzle. I took everything apart to clean and remember I bought another obxidian nozzle, except this was a high flow. Put in the HF Obxidian after cleaning the everything since I knew I was going to print some ASA. Worked great!
RE:
As originally posted, I went from a high flow stock brass nozzle to a non hi flow obxidian nozzle and I think that was a big part of the problem.
Just last week I was printing and started getting the clicking again with stock brass nozzle. I took everything apart to clean and remember I bought another obxidian nozzle, except this was a high flow. Put in the HF Obxidian after cleaning the everything since I knew I was going to print some ASA. Worked great!
I only use hardened nozzles for everything. I have HF Obxidian and DiamondBack. I rarely use the Obxidian except for large PETG prints that can take advantage of the HF geometry and if it saves me more than 1hr of print time. Sure the DiamondBack is $130 but it will never (I hope) wear out. Brass nozzles to my mind are consumables/disposable so I don't see the point. Certainly can get V6 brass nozzles for very cheap but I change nozzles a lot, print a lot of abrasive filaments and V6 nozzles are a PITA.
Of course once the INDX arrives then my nozzle collection is more or less useless.