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John
 John
(@john-8)
Eminent Member
what is this?

Hi,

My prints started doing weird things. I bought it preassembled and it was great 

for a while. My belt tension was off which I corrected and calibrating first layer ,

I got these ridges. ( Z offset -0.556). I should mention I got the dreaded blob 

on a previous print by cleaned it off as best I could. Any ideas? thanks john

 

Posted : 17/02/2022 8:13 pm
cwbullet
(@cwbullet)
Member
RE: what is this?

You are not low enough.  

--------------------
Chuck H
3D Printer Review Blog

Posted : 17/02/2022 10:47 pm
Bob
 Bob
(@bob-2)
Reputable Member
RE: what is this?

Not even close, it's amazing it's sticking to the plate at all.

Cheers

-Bob

Prusa I3 Mk2 kit upgraded to Mk2.5s, Ender3 with many mods, Prusa Mini kit with Bondtech heat break, Prusa I3 Mk3s+ kit

Posted : 18/02/2022 12:51 am
John
 John
(@john-8)
Eminent Member
Topic starter answered:
RE: what is this?

I went down to -.980 and was getting a rooster tail behind the nozzle, is that normal?

Posted : 18/02/2022 1:08 am
Bob
 Bob
(@bob-2)
Reputable Member
RE: what is this?

Pictures?

-Bob

Prusa I3 Mk2 kit upgraded to Mk2.5s, Ender3 with many mods, Prusa Mini kit with Bondtech heat break, Prusa I3 Mk3s+ kit

Posted : 18/02/2022 1:10 am
cwbullet
(@cwbullet)
Member
RE: what is this?

Pictures will help.  

Posted by: @john-8

I went down to -.980 and was getting a rooster tail behind the nozzle, is that normal?

 

--------------------
Chuck H
3D Printer Review Blog

Posted : 18/02/2022 1:47 am
John
 John
(@john-8)
Eminent Member
Topic starter answered:
RE: what is this?

Ill have to do a video ,the nozzle lays down the petg right on the sheet as it move but immediately

behind there is a vertical gap for a few mm before it lays back on the bed. Ill see what I can do.

 

Posted : 18/02/2022 2:08 am
Bob
 Bob
(@bob-2)
Reputable Member
RE: what is this?

Once the filament hits the print surface it should stay there.  If it lifts at all you have a problem.  Do a first layer calibration and show us 2 pictures, one of the whole bed, the other a close up of the rectangle.

Cheers

-Bob

Prusa I3 Mk2 kit upgraded to Mk2.5s, Ender3 with many mods, Prusa Mini kit with Bondtech heat break, Prusa I3 Mk3s+ kit

Posted : 18/02/2022 2:22 am
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