Prints coming out as 'hard foam'

[davew 0]

I have been printing without any problems for a couple of weeks. Printed a couple of objects, one with infill, this afternoon. Then this evening tried to print another object I have just designed in Sketchup. Changed nothing in Cura, just started it printing as I always do. The result - when I came back to check after a couple of hours is basically 'foam'. There is almost zero adhesion between layers and the walls seem almost not to be there!

I then tried some gcode from a couple of days ago, prints OK.

Tried new gcode from Cura, more foam.

Reset the profile to the default (except for layer thickness set to 0.2), more foam.

Trying Cura Quickprint now and that seems to be OK....

Can anyone suggest what is wrong? Have I got the temp wrong or some other setting? I certainly did not mean to change anything!

David.

 

[illuminarti 18]

Dave - email me the gcode to gcode@fbrc8.com, and I'll take a look and see if I can see what's wrong with it.

 

[gr5 2,224]

Check the flow parameter. It should be 100 (as in 100%). Sometimes people set it to 10 or 1 by accident.

 

[dree 0]

It looks like the same problem I had: http://umforum.ultimaker.com/index.php?/topic/2722-printing-big-thing-problem/

I think printing somewhat hotter was the most important change I made.

Groet Dree