Rough artifacts on surface
I seem to have developed some rough wavy scarring on the external perimeters of my prints.
I am sure something is loose or something, as this is a new occurrence after updating/rebuilding my toolhead to RR beta 2.
I had found some loose grub screws on my pulley gears, I tightened those, and that fixed some other issues.
See attached pictures
You can also see where I did a max flow rate test and it chugged through that all the way up to 25mm/s and clean smooth walls....
Any help would be very much appreciated.
Solution:Jump to solution
I mentioned how I got a brand new rapido hot end....Welllllll.....they come default with a 0.6mm nozzle installed.....
30 Replies
I just went back and tightened every screw I could find. I also realigned the linear rails on the Y
I tried adjusting my IS and slowed my max_accel down to 7500 but something is still off. While slowing down does seem to help a lot, its not really solving the problem, and im printing a lot slower than I did previously
Comparing it to the sliced view, it appears to me that most of the issues happen around when the print is at its slowest, but otherwise seems fine when moving faster?
Not sure if this is a deccel issue, or an accel issue?
What sort of issues could show up during acceleration but not while actually moving fast?
I have tried a lot of things
This is what I have checked:
I checked by printing objects with long straight faces, like cubes. I do not see the issue in those. Which makes me think it is maybe not mechanical?
I tried changing filament.
I have adjusted the Acceleration, the cruise ratio, and even checked and adjusted my shaper graphs/input shaping. None of this seems to make any difference at all, except printing slower makes the issues less noticeble.
I tried reslicing the model in different ways.
I tried rotating the model.
I tightened everything up I could find, and realigned the Y rails, and it seems to be no difference
I ordered a set of the honeybadger bearings, some new belt, and some new/upgraded rails from Fabreeko. I am going to just rebuild the entire motion system and hope that solves the issue.
If not, Ill try replacing the motors. Not sure what else to do tbh
Looks like extruder problem. Check extruder gears clean and noozle clog.
But it happens on only one axis? Wouldn't an extruder issue happen among all axis? But yeah, I will check, since this is only thing I haven't checked.
The Y and the "slicer" faces are both Y axis, and only issue happens along the one side even. So not just the Y axis, but only one face on the Y axis...
While pushing filament in klipper ui, I can set it to 18mm/s(43mm/s^3) and it extrudes just fine without skipping. Solid filament with no breaks and even width as well.
I checked the gears, and everything looks clean and unbroken
I have an Orbiter 2 btw
Do you check filament tension screw? Incrase tenshion 1-2 full rotation and test print.
Maybe a partially clogged nozzle?
Check for maximum volumetric flow setting in the slicer. It may be too high, which results in the hotend to try and extrude a lot more then it can handle. Set to something like 20 to test it. If helps test the max flow
Maybe, but it only happens along one side, and only sometimes. Also its a brand new nozzle, and I have tried cold pulling it etc
Yeah, I have tried the tension as well
I am using the same slicer settings and same filament that I have been. This is something I print a lot and mass produce. This issue is new and has just started
I am going to just try switching nozzles. I have cleaned it a bunch, but perhaps, since people keep saying nozzle, it could be a manufacturing issue on it. I will let you guys know.
So, I have rebuilt the entire motion system. I replaced all the bearings with ceramic bearings, and replaced they Y rails with new rails from fabreeko, I replaced all the belt with new belt.....
Still same issues, in the same place.
I have rebuilt the toolhead and its a brand new nozzle/hot end from rapido.
I think my next step, is to get rid of the toolhead beta2, and build the nee toolhead released for Vcore 4.
Im running out of ideas tho :/
I‘m just wondering what happens, if you run a VFA test
Do you check y motor? Motor connection, stepstick, grubscrew on motor pulley?
I had this problem in the past: Its a combination of too high flow throught the hotend, too high flow in the slicer and poor cooling. Make a flowtest and reduce the flow in the slicer, check the part cooling and print the part rotated to check whether it is dependent on the orientation in the printer and control the part cooling.
I agree with
comes out clean
yeah, I did have a loose grubscrew, but I fixed that weeks ago, and still this issue
This is parts I mass print, and the same exact gcode I keep hitting reprint on that worked perfectly in the past
Its and issue along a specific axis..If i turn the part, the issue doesn't follow it.
Well than it is some sort of abraision. Check the nozzle, it may be clogged or worn out.
Its a brand new nozzle and hotend, as the aforementioned loose grub screw caused a big blob which encased the last one
but maybe they sent me a bad one
Yeah, expecially with cheaper nozzles I have already had experiences like this. May also be a bad section of filament, you already measured the diameter?
lol, its wasn't cheap....its a phaetus rapido v2
ive tried different filament too
lots of different filament that runs just fine in my other printers
I'm not sure, but could it be that the filament is slipping at the extruder? what happens if you set the volumetric speed just to a third of the current value?
I still get some artifacts in the same places, but slightly less pronounced. I tried at 7mm/s
as well as 12 and 15
are you using the correct configs for the extruder?
I have found a crack in my toolhead Fan duct where the screws go in
so imma try reprinting that
Same configs ive been using for months
oh no, sad to hear that
probably my fault from driving the screw too hard lol. It happens...the advantage of having a printed printer
If you swap the duct and it all automagically works again, you can call one daffy duct and the other donald duct.
lol. It didn't solve the issue :c
Maybe they sent me a bad nozzle...Ill try swapping it. Ive tried cleaning it to no avail
Same thing, exactly the same place
nozzle? Extruder? X rail?
Ive replaced the Y rails and all bearings
Sigh.....
I am very embarrassed about what I just found/did/discovered
Solution
I mentioned how I got a brand new rapido hot end....Welllllll.....they come default with a 0.6mm nozzle installed.....
I slice in 0.4mm most of the time.....and I never changed
soooo stupid