bubbles in the roof of my prints

Stephen_Ambler · 2016-03-12T12:00:34.000Z

Hi I’m new to 3d printing,

I have a ctc dual extruder printer and when I’m printing my prints all end up with a bubble like rash on the roof of the prints, anyone any idea why this is happening, cheers in advance

20160312_114927.jpg2988×5312 5.02 MB

RCONSTRUCT · 2016-03-12T13:10:35.000Z

Make sure your cooling fans are on full speed for the top layer. Also your extrusion multiplier may be too low and you are overextruding plastic. This also can be caused by moisture in your filament. What material are you printing with? PLA or ABS?

3Dscaleworks · 2016-03-12T13:13:39.000Z

Increase number of top layers and increase fan speed for the last layers!

Stephen_Ambler · 2016-03-12T14:14:33.000Z

I’m using place. I can’t get my abs to print right I’ve looked at a load of feeds on abs printing but nothing helps

TstarkEngineer · 2016-03-15T18:28:14.000Z

This is called pillowing

support.3dverkstan.se

A visual Ultimaker troubleshooting guide - 3DVerkstan Knowledge Base

On this page you'll be able to visually try to match the problems you are having with your print and hopefully find enough information so that you can eliminate

Make sure fan speeds are up