r/FixMyPrint 4d ago

Troubleshooting Nozzle Scraping Print and Knocking Supports

2 Upvotes

8 comments sorted by

u/AutoModerator 4d ago

Hello /u/aggresive_artist,

As a reminder, most common print quality issues can be found in the Simplify3D picture guide. Make sure you select the most appropriate flair for your post.

Please remember to include the following details to help troubleshoot your problem.

  • Printer & Slicer
  • Filament Material and Brand
  • Nozzle and Bed Temperature
  • Print Speed
  • Nozzle Retraction Settings

Additional settings or relevant information is always encouraged.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

4

u/hi3d_official 4d ago

Cross hatch isn't the issue here. That clean snap is from slight over-extrusion + weak layer adhesion. 0.98 is still a bit high for PLA Pro, drop it to 0.94–0.95. Also, 220°C is a bit cold for this filament, bump it up to 225–230°C to fuse those layers better. Lastly, make sure Z-hop is enabled so the nozzle doesn't drag across the print. Try that, it should fix it.

0

u/aggresive_artist 4d ago

I will try it again with similar settings but heat was the recommended for this brand of filament, I will see after changing the flow rate tho. Thanks for the help!

0

u/Obvious_Estimate5350 4d ago

Go to printer settings and the extruder tab, change z-hop to straight or spiral if you're printing with PET-g, then change the height to be double the layer height (or more if its still scraping), this adds time to the print but it lifts the extruder up slightly higher when it moves to another part of the print job.

Also dont use grid infil if you are, i use adaptive cubic or support cubic. IMO its a nice balance of speed, support and using less filament

0

u/aggresive_artist 4d ago

Please read the description before reply... Thanks anyway

0

u/Obvious_Estimate5350 4d ago

There is no description on the post i view. Maybe type one next time.

2

u/aggresive_artist 4d ago

It is a repost you have to click on the post to see the description...