Inaccuracy when printing

[clinton 7]

I'm printing a fairly long length item which uses supports only (I tried a brim too but that made no difference).

I have designed the shape in Fusion360 and it is drawn like this:

but when I print it I get this

It's printed flat with the posts pointing upwards and the support structure between the ledge and the glass.

It seems worse at each end. The middle of the item isn't too bad. Could it be a calibration issue with the Ultimaker?

Edited February 27, 2016 by Guest

[tinkergnome 927]

Could it be a calibration issue with the Ultimaker?

 

I doubt it. It's more likely related to the material (which one is it?).

Looking at your model - i assume that the material shrinks at different rates. Those geometries are hard to print (at least in this orientation). If possible, add some reinforcements on the sides and/or below the ledge, or try thicker walls. This may help a bit.

[clinton 7]

I was using Verbatim but now I'm using ColorFabb. ColorFabb seems to work better.

I'll adjust the design as you suggest and try again.