Hey guys,

I'm working on a cover for a lighting fixture. I think I've got all the surfacing for the shape figured out, but when I go to thicken the part to 2.5mm, I get the min curvature radius problem that seems to be a fairly common issue to run into.

I've been messing with some of the settings in the surface knit feature, as well as playing with the sketches that comprise the various lofts trying to get that min radius curve up to 2.5mm so that the thicken feature will work.  I also consulted my surfacing bible, played with deleting the offending face and filling it back in.  Thus far, nothing has worked to my satisfaction.

I've attached the file here for whoever is interested, maybe you guys could give me some pointers on how to go about restructuring the model so that the min radius curve is up to where I need it to be.

Thanks in advance,