Thanks for all the information guys.
I’ve made some progress and just about have it nailed down. The one thing I haven’t figured out yet is why are my prints coming in at 0.10-0.20mm oversize? The length is 28mm and I measure 28.23mm.
Looking at the picture here you can see the evolution and how I’m getting better.
#1 is with 2.89 filament dia. Beginner settings on slicer
#2 is with 2.85 filament dia. (speaking of this how constant is this number supposed to be? This roll of natural abs I have bounces from 2.83 to 3.19)
#3 2.85 filament, medium slicer profile and I increased my slots to 0.75mm. (at this point I could see the printer making the beginning of the slot on the first layer, but by the time it has reached the top layers the slots have shrunk or filled in. Any thoughts on this?)
#4 same filament, medium slicer profile and increased slot (0.75mm). I changed the orientation of the print. I laid it on the side so the slots would have to be printed horizontally.(The red arrows indicate which side was touching the glass) This seem to work the best for the slots, I just need to add in some more supports for printing the over hang.
Any advice on what to try next?
Fine slicer profile? Or smaller nozzle? (I have to 0.25 and 0.15)
I’m still curious on how this machine/software accommodates for die swell. Yes slicer controls the extrusion speed, but how is slicer calibrated to know that a given speed equals what die swell amount?