Printing a lid that is about 18cm in diameter, and this edge (about 6cm of it) did this and I heard the nozzle clipping it before canceling the print.
The object is designed with a 1mm chamfer - I suspect this may have something to do with it, but I would think it can handle a 1mm 45 degree chamfer.
Rendering:
Any help appreciated
It’s an aheadsion problem. This part of the print isn’t staying on the bed and is curling up.
Clean your bed with hot water and dish soap. Give it a really good scrub and don’t touch the printing surface with your fingers as that is the most common source of contaminants.
I think that angle should be fine. I think maybe there was an adhesion problem right where the nozzle scraped and it came off the bed a little. Is it possible there was a finger print in that one spot that kept if from sticking?
Edit, darn you Jon and your fast fingers! lol
thanks - LOL… fyi, just started using these (using a cleaner pair now…):
but not every time, and it’s entirely possible I touched it. Guess I should keep them on.
I’ve been using rubbing alcohol, but will go use some dish soap & see what happens.
Always warm water and basic dish soap, never chemicals.
Contamination comes in many forms, fingerprints are just one.
Previous prints are another.
I didn’t think of rubbing alcohol as a chemical - seems like dish soap would leave more residue!
But hey… I’m no chemist.
It is what can damage the coating.
Remember, I said basic dish soap. The type that has no chemical additives, no odours.
Key is to wash everything (including the dishwashing liquid) off at the end with plenty of water.
I have found that adding a generous splash of isoprop just before using water, diswashing liquid and a clean, stiff brush can help a bit.
Follow-up question - could that also be what caused this “flat” spot on the opposite side?
The finish looks nice otherwise.
I’m running a smaller test piece now, will post results.
Test results:
4cm dia. Freshly cleaned plate.
Part came out ok.
Purge line pulled away - I’m thinking this was pretty clean, so not sure what would cause that. Thoughts about the top? No ironing, but a bit more noise than I’d like.
thx
That looks over extruded to me. Have you calibrated your filament?
I haven’t calibrated my filament… will check that out.
“Flow Rate Calibration …can lead to sub-par prints or printer damage…”
Ah… I’ll study this a bit more before trying it out. Still pretty new at this.
However… Success! (With a few follow-up questions.)
The lid came out pretty nice. I printed another one this morning (below), with a few glitches.
Only thing I can think of here is that last night, I pulled the print off the plate when it was a bit cooler - this morning, while it maybe was still a bit warm. Would that cause this?
Thanks again for all the help!
The inside lip of lid shouldn’t have a finish like that. It should be smooth. Is this the only part you have seen this happen?
The “tails” come from surface stresses when the part is releasing. A quick pass with a heat gun will often remove them. Alternatively I’ve found that they can be removed with a stiff brush but ymmv.
Thanks Jon -
That’s the only place I’ve seen it, though there is a bit of the “wave” texture on the outside of the lip.
Here are two images from the first print - showing the part of the inside of the lid that felt very smooth, and a part with a lower amplitude “wave”:
As far as the handle goes, the texture on the first (below) was about perfect. Could it help if I wait longer to remove the print?
The “waves” could be caused by the edges shrinking/warping up.
Leaving the part to slowly cool on the bed can lessen the stress marks but it doesn’t seem to 100% solve them.
