I have a new Ultimaker2. I had not trouble setting it up. The bed calibration was much easer that with my da Vinci. I printed the robot test print and all worked as expected.
The next print that I made, it took some time for the filament to extrude. It did not print the skirt and it was halfway through the first layer before it started to lay down plastic. It finished printing and the print looked fine, just some buggers, and the problem with the first layer, but not bad.
I went to print the next print, and I watched it to see if it would print the skirt. When it started it did not print the skirt, so I stopped it.
I am using Cura 15.02.1. I checked my settings and tried again. the same thing happened. I could see that the filament looked like it was feeding, but it was not coming out. I stopped it again, and checked my settings. I noticed that the retract was set to 4.5mm, and the pre-feed was set to 3mm. I thought that what was happing was the filament was not getting to the print head before it started to print.
Just a side note. When the robot was printing, the print head moved to the front left and ran out some plastic. It then start the skirt and the robot. I am not sure why this is not happening with my prints. The print head moves immediately to print the skirt.
Back to my story. I adjust the pre-feed to 5mm, thinking this would move the filament up to the print head. But it did the same thing, and I stopped it.
I then noticed that I could see the end of the filament in the tube. So I manually fed the filament until it was coming out of the print head, and then started the print. It printed the skirt and then started the print.
With the next print the same thing happened. I moved to print the skirt and it did not lay down plastic. I stopped and manually fed the filament until it was coming out and then start the print.
My question is, am I doing something wrong with Cura that is causing it not to extrude the filament before it starts to print?
I have not used Cura before. I use Slic3r with my da Vinci. This print is still not printing wright. I am having trouble with the supports.
Thanks for any advice.