Blobs

Also known as: Zits, Pimples, Blob Marks

beginner Print Quality

Small raised bumps on print surfaces from excess material at start/stop points.

Blobs (or zits) are small bumps on print surfaces, typically where layers start/stop or at travel move endpoints.

Causes

  • Pressure buildup at layer starts
  • Poor retraction settings
  • Oozing during travel
  • Seam placement

Fixes

  • Enable coasting (stops extrusion slightly early)
  • Tune retraction and prime
  • Enable wipe moves
  • Adjust seam placement
  • Lower temperature slightly
  • Use linear advance/pressure advance