Print bubbling on heated bed during print

gomezjj3 · 2016-05-14T14:32:18.000Z

Scott, I forgot to tell you that I use a glass bed so your temps may be a bit lower. Use increment of 5 degrees when testing on yours.

Scott_Jenkins · 2016-05-14T16:22:10.000Z

ok thank you, I have all the stuff to put a glass bed with PEI on but I keep procrastinating because I dont want to mess up my printer lol

Scott_Jenkins · 2016-05-14T23:28:30.000Z

Im home Trying a new print added a raft, fiddled with a few settings leveled the printer hot and increased the bed temp to 80c looking good so far crossing my fingers

gomezjj3 · 2016-05-14T23:56:55.000Z

Awesome, let us know how the print did.

Scott_Jenkins · 2016-05-15T10:32:21.000Z

I will post pictures after work but this is how it went, the Raft laid down like a dream it looked perfect, then when the print started… I curled and bubbled just like when there was no raft, it makes not sense, but the difference being, it stuck to the raft, mainly because I pushed down on the curls as it did the first layer. In the end the print came out ok and my Dice tower is finally done.

gomezjj3 · 2016-05-15T10:54:11.000Z

Take a closeup pic of your extruder also.

gomezjj3 · 2016-05-15T13:07:25.000Z

Take a look at 3dprinterwiki.info. select Duplicator i3 Factory Documentations & Files Then scroll down to Articles and select First Layer Settings. Good read and well explained. May help you out some.

Scott_Jenkins · 2016-05-15T14:48:36.000Z

I will check my settings thank you. Im going to print my design of a 6 sided D3 tonight 6 sided die only 1,2,3 on it for D3 rolls). That may be my initiial layer problem. because I didnt have that problem before. and I did change the layer height a couple times for different prints.

gomezjj3 · 2016-05-15T15:40:15.000Z

Good deal. You are almost on the home stretch.

Scott_Jenkins · 2016-05-15T16:28:03.000Z

I don’t know about that lol, You buy one of these things and you have to pretty much know how they work inside and out. I got some new filament in too.

Scott_Jenkins · 2016-05-16T00:31:25.000Z

Ok Pictures the first one is the raft laying down, perfection, Then the first layer same as always… Then a closeup of my extruder. Finally what I took all this time printing this week

20160514_194057.jpg2988×5312 7.61 MB

20160514_195314.jpg2988×5312 8.09 MB

20160515_202510.jpg5312×2988 3.4 MB

20160515_202149.jpg2988×5312 7.87 MB

Scott_Jenkins · 2016-05-16T01:03:42.000Z

Printing my die, I changed the first layer to 90% and it is working great I really think that was my problem, I think

gomezjj3 · 2016-05-16T02:18:46.000Z

That print looks really good. Tweak that first layer and you should be good from here on out. Nice job.

gomezjj3 · 2016-05-16T02:24:10.000Z

In my opinion, I think you should go with .3 for your initial layer thickness. It for some reason is what Wanhao profiles are showing. It is what I use for PLA, HIPS, and ABS, and I usually get good results. I know that the 3dprinterwiki.info web site says otherwise, but try both and see which one fixes your air bubbles.

gomezjj3 · 2016-05-16T02:26:40.000Z

Awesome, see how it goes with that. Save that profile, for future use.

Good luck

skunkyf · 2016-05-18T18:08:35.000Z

I get that if i have the fan on for the first layer.

Scott_Jenkins · 2016-05-18T20:01:08.000Z

I have found if I Set extruder to 205c and the printbed to 70c it seems to lay down filament fine but the edges of the raft curl up not all of them but like one or 2. Then I was printing a Microsoft Band (stand) it printed fine (except for the raft lifting in the corners) then about 3/4 the way up the neck the neck was all messed up like it had been chewed on, I tried this twice with different results but both times the neck was messed up to a degree, Im also finding that When the filament covers over the filler (triangles) it doesnt cover smoothly or properly, what would cause this?

Marco_36 · 2016-05-18T21:35:14.000Z

sembra che il piano non sia livellato bene, dove fa le bolle sei più distante dal piano e quindi il materiale non è spalmato bene e lo strato risulta più grosso e non ancorato al letto caldo.

Prova a fare il primo layer più basso con il piano livellato meglio. Porta in temperatura il piatto caldo prima di fare il livellamento anche il vetro si deforma con il calore e si deve assestare.

Scott_Jenkins · 2016-05-18T23:18:56.000Z

I have leveled the bed again, I have not installed the glass and PEI yet, Has anyone installed the Z brace Mod I bought the hardware. Is it difficult?

gomezjj3 · 2016-05-19T03:45:44.000Z

Scott,

Hi listen the Brim or Raft is set up by the slicer. So if it is not working for you then the temp, fan use or printer leveling has got to be off or even your filament has got some issues. I don’t want to think your extruder has issues, because you mentioned you only had the printer for 2 weeks…

If you have not changed any of the settings of the Brim or Raft then check those other items. If printing with ABS check your fan settings. Remember you fan for ABS have to be OFF or if it is a specific small item, Like the Marvin then setting your fan at 40-50% is appropriate. If Printing with PLA your fans are a good thing because PLA needs to cool down its layer so the next one sits just right. Check out the BRIM or RAFT settings you will see what I am talking about. Keep at it, eventually you will hit the right settings.