Help with blobbing issue
Posted: Thu Oct 04, 2018 5:23 pm
Hello,
I recently had bed leveling and heating issues and to solve them I was sent a new printer base and SE300 hotend with a probe sensor to install. After several headaches, I eventually replaced the parts and got the printer back to working order. However as soon as I started trying to print I ran into severe blobbing issues
The first three pictures are of a helmet I made before (green one on the right) and after (blue on the left) replacing the parts. As you can see, the quality of the outside wall has worsened dramatically. it's full of bumps everywhere through out the print. The green helmet (Yes I know there are adhesion issues. I have since addressed those!) printed out considerably smoother. For both prints I started with the default Cura profiles that are on the seemecnc github (https://github.com/seemecnc/slicing-pro ... %20Default). The only changes I initially made were to layer height, which I changed from .2 to .25, I believe.
The fourth picture is an up close view of what I am now seeing on every print I attempt. The first few layers start off fine, then the blobbing begins. Again, for this print I began with the recommended default ABS Cura profile. I'm not sure what values would be helpful to know, but I printed the material at 235 - 240, the bed was 110, retraction set to 3mm, retraction speed is 150 mm/sec, and coasting values was .0625. After starting with these values I've tried changing them but was unable to eliminate the problem. I even added some Z-microsteps because I thought maybe the hotend was pressing down too hard on the print. I'm kind of out of ideas on what to try. If anyone could give me any sort of advice I would very much appreciate it.
Thanks in advance.
I recently had bed leveling and heating issues and to solve them I was sent a new printer base and SE300 hotend with a probe sensor to install. After several headaches, I eventually replaced the parts and got the printer back to working order. However as soon as I started trying to print I ran into severe blobbing issues
The fourth picture is an up close view of what I am now seeing on every print I attempt. The first few layers start off fine, then the blobbing begins. Again, for this print I began with the recommended default ABS Cura profile. I'm not sure what values would be helpful to know, but I printed the material at 235 - 240, the bed was 110, retraction set to 3mm, retraction speed is 150 mm/sec, and coasting values was .0625. After starting with these values I've tried changing them but was unable to eliminate the problem. I even added some Z-microsteps because I thought maybe the hotend was pressing down too hard on the print. I'm kind of out of ideas on what to try. If anyone could give me any sort of advice I would very much appreciate it.
Thanks in advance.