Printing Blobs
I recently had to replace the Prusa I3 base plate. So I believe the problem stems from that. I'm printing PLA which is typically easy. For the particular print I'm doing it get about 1/2 done and then burps out a blob of plastic. Otherwise the print is perfect! I've adjusted temp, retract, and speed. It has gotten better but still persists. I'm out of ideas. I ordered some more material as the material I'm using is new, but different then what I normally use.
Any ideas. Thanks....
Drew
Best Answer by DrDrew:
Figured it out. Was actually something very simple. When I put it back together the system was cold. I did not get the nozzle in tight. Hence there was a small air gap between the nozzle and the head and that air became super heated, created a blob now and again and the system pooped it out. Once I discovered the issue I tightend the nozzle while it was at temperature and readjusted the Z height and now it prints like new.
Thanks to everyone who looked at the post.
Please save your project as a .3mf file
Files > Save Project as
Zip the .3mf and post it here. It will contain both your part and your settings for us to diagnose.
Cheerio,
RE: Printing Blobs
I'm sorry but I have no idea what you are talking about. Save my project from where? Are you assuming that I use Prusa software.
I've had my one Prusa for about 6-7 years and I bought a second one, a year ago. I've always used simplify 3D and I'v e never had a problem with any material until I took it apart and put it back together when the print head back plate was cracked. I have it printing pretty well right now, but blobs persist.
Without question this is the best printer I've ever use. I had my school buy a dozen of them for the students.
What ever the issue is I've created it via my assembly, or I have a bad batch of material.
Thank you for your help.
RE:
Figured it out. Was actually something very simple. When I put it back together the system was cold. I did not get the nozzle in tight. Hence there was a small air gap between the nozzle and the head and that air became super heated, created a blob now and again and the system pooped it out. Once I discovered the issue I tightend the nozzle while it was at temperature and readjusted the Z height and now it prints like new.
Thanks to everyone who looked at the post.