zinc gale
So I was printing a phone case
And I was wondering why the top edges of the phone case are fine but the edges near the bottom have these little beads on them
Just wondering if there is any setting I can change to get smoother edges
I'm using the creality K2 plus printer
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zealous nebula
My guess would be that there is a single wall that some how got chopped into these pieces
warped fern
what was the orientation of the model on the buildplate? , because if printed like on my pic, the inside of the case should not look like the ceiling of the batcave
it looks like your printer prints beads instead of lines, which makes for that rough surface. probably your filament is too wet and/or the pressure advance is way off
zealous nebula
I only tried a phone case once and it looks like you said so i gave up
warped fern
TPU is hard to print, i can do it on my K1 Max, but only if i put a piece of other filament in the PTFE tube, past the sensor to trick the printer, uncouple the PTFE tube on the toolhead and feed the TPU directly into the extruder, otherwise it wont extract right tpu is flexible, it expands when pushed into a tube by the toolhead(retraction) and contracts(stretches) if pulled by the toolhead. TPU is Notoriously difficult to print.
So if you use your TPU and feed it into the K2 especialy from a CFS or AMS etc it will fail, TPU does not work in a CFS, AMS, AMS 2 PRO, or whatever other automated material system. for TPU you need as little PTFE tube as possible between spool and toolhead.
the softer the TPU, the harder to print through PTFE tube.
zinc gale
what was the orientation of the model on the buildplate? , because if printed li...
yeah this is how i had my orientation, i printed it like that. for the filament I am using ELEGOO PLA Plus. it's weird that the first layer and walls came out just fine but yeah the top layer and edges there are rough.
my CFS says the humidity is around 40%. that should be fine right?
where would I chest the pressure advance at?
warped fern
I don't think so I usualy bring it down to around 10% humidity on my H2D AMS 2 or for the K1 Max with my sunlu dryer.
you need to read up on pressure advance, it's not explained in a few words. I use Orca slicer for the K1, and that has pressure advance under calibration, top line on my Orca. and i don't know the K2+, but there are tutorials for the pressure advance.
BTW, that design needs to be printed in a flexable plastic, like FlexPLA or TPU, you cant fit that over your phone, the round sides will break
zinc gale
The file was meant for non tpu material
Or at least that's what the author said
It was able to snap on over my phone and fit just fine
I just printed this case to hold my Arduino and breadboard and this came out just fine
None of those beads at edges
I'm wondering if it has to do with the thickness of the case
zinc gale
I noticed that my filament is hanging out of the nozzle after finishing a print now
Google just said to try lowering the temp
So I put it down to 210°c but that didn't really fix the problem either
warped fern
so it does not retract enough or fast enough? try different retraction length and speeds, you find it in the printer settings under extruder in Orca slicer
zinc gale
Okay I'll try increasing the retraction speed and see how that goes
zinc gale
Apparently it was something to do with the bed level
I just had to recalibrate the bed leveling
The nozzle was just scraping against the first layer
zinc gale
The beads went away but there is the smallest scraps on the first layer of the pritn
zinc gale
So I ended up figureing out what the problem was
My z offset was off by .05 mm
Once I set that it was good
Also the retraction settings helped make my prints a lot smoother I increased the retraction length to 5mm and then set a zhop of .4 mm and haven't had any issues now