Heh, the part is already gone in destructive testing. It held up pretty well, but finally delaminated after a rough encounter with the vise grips. I'll take some pictures of the next print I make. However, I didn't get the optical clarity that aduy got. I could see through the layers top down, but sideways the walls were pretty opaque. I may have to dry my filament a little more.by karlo - General
I followed your lead and printed my chinese PC filament with pretty much the same settings that you used (hot, slow and wide extrusion), and indeed, the part holds together much better. I may still need to bump temperature another 5C, but this is very close to where it needs to be. Thanks for sharing your findings, I was about to throw this filament away. I printed on 90C kapton with ABS juice.by karlo - General
Prior art covers what's in the public domain. If the examiner fails to discover prior art (and it passes tests for obviousness, etc.) and the patent is granted, the patent must then later on be challenged and reexamined, which can be a lengthy and costly affair.by karlo - General
uGen: Keep us posted. I suspect that there is something fishy with the Chinese PC filament. At least it was cheap...by karlo - General
I had similarly disappointing results with polycarbonate from the same ebay seller. Things printed just fine, but layer adhesion was poor. Shortly thereafter I got some Taulman 645, so I put the PC on the shelf for the time being. I tested the dried filament with no cooling fan up to about 300C, with no substantial difference in adhesion. I was thinking about testing the PC again, but I have nby karlo - General