My Prusa Mendel finally worked fine and made me happy after some printing issues were corrected. Now the small prints of my proyect look very good, so I decided to go for the biggest part of it which is completely flat and its dimensions are 7" by 4 1/2". Aprox the 75% of the layer was printed very good, but some spreaded excess of PLA started to build up on that first layer.. The extruder was at 190 grades and the bed at 80. I used the fan at 50% all the way until I decided to stop it. I would gladly appreciate if you guys have an idea of what is happening and give me some advise. Attached is pic of that first layer. https://reprap.org/forum/read.php?262,436735,436735#msg-436735 Fri, 14 Aug 2026 02:58:42 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?262,436735,437060#msg-437060 https://reprap.org/forum/read.php?262,436735,437060#msg-437060 It would be really helpful to see your problem.

Sometime the first layer is a bit bigger because the slicing software is configured to extrude more plastic initially to get better adhesion to the bed. As an experiment, you can try printing with a raft, and see if the problem is now with the raft layers, and not the model layers.]]> barakori Printing Wed, 26 Nov 2014 15:52:31 -0500 https://reprap.org/forum/read.php?262,436735,436736#msg-436736 https://reprap.org/forum/read.php?262,436735,436736#msg-436736 veteran54 Printing Tue, 25 Nov 2014 21:37:51 -0500 https://reprap.org/forum/read.php?262,436735,436735#msg-436735 https://reprap.org/forum/read.php?262,436735,436735#msg-436735 veteran54 Printing Tue, 25 Nov 2014 21:36:21 -0500