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Printed 2 of these, so far each has been almost "sagging" while its building up about halfway, but then it started coming out fine and looks great at the top. Will include a picture. Using ABS, 233 temp extruding, 120 build plate heat. Pretty slow speed also, 60mm or less (testing slic3r settings lately) Maybe 233 is a bit too high?Attachment 3725
Edit - The top part of this actually came out even worse, uploading pic. Attachment 3727
Hah! If it makes you feel any better, I'm printing a few of these with PLA as I type, trying different parameters. This is the ONLY thing I've printed that has a sag in it. Halfway up and above, it looks fine. :p
Figures :P I checked out a few other of the "makes" on it, they all looked great. So that's what got me confused. I don't have any PLA actually, just like 7 color's of ABS stocked up. Soon PLA to try it.Quote:
Originally Posted by ssayer
Lower everything, 225c and 105c for the print bed and see how you go and try printing at another layer height, if that is 0.2mm try printing at 0.25 or 0.21 or something other than what you tried previously.Quote:
Originally Posted by Bassna
Same here. I looked at about 4 other "makes" and they looked great. So... I started experimenting, changing temps from what I've already found to be optimal. The only thing changing the temps did was make it worse. So... ;)
(I tried changing layer height also, nothing helped)...
Just for info, here's the link to the object in question:
http://www.thingiverse.com/thing:193899
Will give it a shot right now. Also, would you by chance know how to get Slic3r to lower my build plate when the print is finished? It just stay's at where the print finished.Quote:
Originally Posted by Geoff
Edit - Yeah, same bad print at the bottom's, I just stopped it. Maybe just the file then? They say they "triple checked" it, so I'm not sure. But just seem's odd.
After trying numerous parameters up and (mostly) down, I've convinced myself that it's just their file. I could be wrong of course, it sure as heck wouldn't be the first time. :p
Update: I tried out a different filament, some Glow in the dark. The print came out great! I tried printing a few clip's with that green I just got (the ornament was the first thing I had tried to print with it) and it seem's all my print's are all saggy like that. Could it be just this roll of filament? Maybe I should send it back? Attachment 3752Attachment 3753Attachment 3754
Certainly, not all filaments are created equally. It could be as simple as changing the temp. Example... I've got one filament (PLA) that only sticks to the bed if I both, heat the bed to 70c and use a glue stick. That said, if I do both, it works great...
Are you getting clicking yet from the feed on your extruder? If not, you can probably try lower. I would for sure. 5 degrees at a time. If it starts clicking, stop the print and raise it up. I'm not saying this will fix that particular file, just saying what I would try on a finicky filament.
Alright I will give that a shot tonight. I have not had any problems with this company's filament (Hatchbox) out of like 5 roll's I have bought, they have all been great. But no clicking yet so Ill tryQuote:
Originally Posted by ssayer
what program are you using to print - and do you have active cooling aimed at the print area ?
I find that makerware produces that kind of sag due to the way it slices. But with active cooling it's almost entirely removed.
I have had a black ABS that acts very similar to that, so yes it can certainly be the filament. Until you have a few types to test with it can be a bit of a challenge but just keep persisting, changing temperatures, make sure your machine is calibrated by printing out as many calibration tests as you can find on thingiverse (there is thousands) just try alot of different models, use rafts, dont use them... once you have exhausted 90% of the options and you get the same result with that filament... then yep, it's possible it's just a crap roll, and this does happen...
Over the past few years I would probably say maybe 1 in every 20 rolls I buy is not all that fantastic, and even from the same suppliers they can vary greatly, even when you repeat an order for the same plastic. If it did not come vacuum sealed in a bag, you have no way of knowing how long it sat dormant absorbing moisture.
Still experimenting with that green. But now I seem to have another issue, I'm hoping you have came across. Not sure if it's really "warping" but, more taking my files and printing them diagonally. They look fine in the print preview, and it can't be all 3 file's are messed up. Here is a photo. Attachment 3801 . None of these should have any diagonal build to them, they should have all built straight up. Testing another piece now, but I can already see it printing up diagonally. driving me crazy! lolQuote:
Originally Posted by Geoff
Also all the roll's I have bought sofar came vacuum sealed with silicon inside.
Edit: Here is that test piece, compared to the exact same print earlier, same material/settings. Attachment 3802Attachment 3803. Have tried with Makerware and Slic3r.
Edit2: I'm printing this thing on the right extruder, it doesnt seem to be happening. Maybe I have a problem with the left one? That snowflake that it did that on, was on the right one. So now I'm even more confused.
Edit3: Tried another snowflake, right extruder, same white material. Diagonal =/ Attachment 3804.
Edit4: Sorry about all the edits!
Finally got a good print on the Bauble with PLA. What it took was printing top and bottom half at the same time (along with the lowest temp settings that this particular PLA would extrude well with, unheated bed, painter's tape) to give each part more time to cool before the extruder got to them for the next layer.
oooer.. the snowflake looks like one of your belts is actually quite loose, or it is slipping.Quote:
Originally Posted by Bassna
Yeah - I've never had anything like that.
I like the christmas tree bauble though. Might make some in the flourescent yellow :-) Now that stuff practically glows.
I just printed the ornament with our Cube 3. It came out great in white PLA. Threads screw together and there is no apparent sagging. Before you ask, it is printed with all factory settings as the machine runs on Cubify, their proprietary program. When I get a chance, maybe I will try with the Prusa or Kossel to see how it comes out?
Attachment 3883 Attachment 3884
After a lot of trial and error, It ended up me switching out my tape fixed the weird diagonal issue. As for the sagging at the bottom of the print's, opening my front panel seemed to fix that. Also I have mainly switched to using Slic3r. Using the Z-Lift option at 0.3 has also helped me a great amount on my print's, although I think it may take a little longer time-wise.