Hi. No the Silhouette Alta + doesn't have a heated bed. The nozzle is 0.4mm. I am not sure about the retraction distance or what that means, sorry,. I do know that the printing area is 124mm diameter (round bed), and 130mm tall.
I was able to fix the issue (temporary fix) by adding some blue painters tape on the bed to make it a hair higher. So now the nozzle touches it enough that the print now sticks. This was the only solution I could come up with for now. So the bed basically needs 2 layers of tape. 1 layer of tape is a hair too low.
today I crated an Solid over a surface.
Now I see my printer fills the empty area. This is made from cura in the GCODE.
I think the problem is the Surface. I found no way to remove the Surface in CAD.
Can I say cura he must ignore surfaces ?
surf_1 is Cura, surf_2 Cura preview, surf_3 CAD and you can see the surface around the solid
Thanks for help