Hi, I have a prusa with a Budasnozzle v1.2 hot end/0.5mm nozzle and a Wade extruder. I am using Slic3r, Marlin and printing 3mm PLA. The temperature of the nozzle is 185 degrees; I have the fan cooling down the filament right before it gets to the heating block. The retraction of the extruder is 1mm at 30mm/s and I am using a hotbed at 80 degrees with a 5mm glass on top. I have two problems. 1) There is some blobbing on the corners that after some layers gets accumulative and creates rising on the corners. 2) The first layer of PLA usually doesn’t stick well on the glass surface and sometimes warps on the corners after a few minutes. Any help on speed, retraction or any other configuration value is greatly appreciated. https://reprap.org/forum/read.php?262,200338,200338#msg-200338 Tue, 09 Jun 2026 14:43:38 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?262,200338,200782#msg-200782 https://reprap.org/forum/read.php?262,200338,200782#msg-200782 www.thingiverse.com]

after slicing check in the gcode the expected single wall width and then measure the actual wall width and adjust esteps / filament diameter till you are close, then the solid cube to fine tune the esteps / filament diameter. On loading up a new roll of filament I will always print the thinwalled object first as it prints quickly and easily and tells you straight waya if you are right.

GaZ]]> gazob Printing Wed, 17 Apr 2013 23:46:17 -0400 https://reprap.org/forum/read.php?262,200338,200746#msg-200746 https://reprap.org/forum/read.php?262,200338,200746#msg-200746

Thank you for the help!]]> alex_mp Printing Wed, 17 Apr 2013 19:02:12 -0400 https://reprap.org/forum/read.php?262,200338,200456#msg-200456 https://reprap.org/forum/read.php?262,200338,200456#msg-200456 Looks like you have some z wobble with the un-even layer alignment.
Try a single wall cube on the painters tape and see what looks like. With PLA and a single wall print you need a fan blown on the part.]]> Spk64 Printing Tue, 16 Apr 2013 20:20:45 -0400 https://reprap.org/forum/read.php?262,200338,200338#msg-200338 https://reprap.org/forum/read.php?262,200338,200338#msg-200338 The retraction of the extruder is 1mm at 30mm/s and I am using a hotbed at 80 degrees with a 5mm glass on top.

I have two problems. 1) There is some blobbing on the corners that after some layers gets accumulative and creates rising on the corners. 2) The first layer of PLA usually doesn’t stick well on the glass surface and sometimes warps on the corners after a few minutes.

Any help on speed, retraction or any other configuration value is greatly appreciated.]]> alex_mp Printing Tue, 16 Apr 2013 12:35:27 -0400