Fill Issues (Page 2 of 4)

Sure thing. The only difference between the file I posted and what I printed is that the file doesn't have the auto bed level code added at the beginning.

Not sure if I've said this, but thanks!

I do really use 215, it worked best for the filament Solidoodle sent us first, I guess I never tested out a higher temp with our new filament. My RH gives a 43min finish time, but is usually wrong.

While I wait for one last proof of concept print can you tell me how many top solid layers you have selected?

OK
Top left is your file and although on my setup it was difficult without the proper retraction settings and slight over extrusion it turned out fine.
Bottom left is my file and I have intentionally under extruded for this example.  You'll have to ignore the color bleed on both left photos.
Bottom right was printed with 0 top fill layer with a layer of black just under the yellow to help highlight the affect.
Top Right was printed with 1 top fill layer with a later of Yellow just under the Black.  Notice yo don't see any yellow showing through?  I also am under extruding (same extrusion multiplier settings) as I did for the top right print.

Thoughts:
You probably need to increase your extrusion multiplier slightly.  Since using your file I was over extruding we can eliminate extrusion width.
Try slightly higher temps.
locate and remedy any source of slop or play in the mechanical side of things.

I will print one more of these with the proper extrusion multiplier just to see if I can get that smooth finish you are hoping for.

Thanks for all the help. When I come in tomorrow I'll start with the extrusion multiplier and higher temps. I'm excited to get this going tomorrow because I feel as we're almost close enough to start having the students work with it and get nice results.

Wow that seems wrong, check your connections at the board for the bed heater and PSU.
cover the bed with a folded up towel and enclose the printer with what ever you have handy just to get it up to temp.

As far as I can tell everything is connected. I haven't taken the PSU apart or lifted the aluminum off the bed to check that yet though. It's not that it's not warming enough, it's not warming at all. My RH gives different numbers for the temp depending on if the extruders are on or not but never goes above 5c, if both extruders are off it reads around 1c.

Anyone using Windows experience anything like this? I'm almost sure it's the software now because at about 80c I turned the bed on and RH finally displayed "Heating Bed" and it's sitting at 97c on it's way to 110c.

I would look into your USB connection I have had those cause funny heating command issues.

Almost as bad as students leaving tacks on your chair

I measured an average of 1.73, extruded at 220C with a multiplier of 1. Averaged the walls at 0.56, which would mean a multiplier of about 85.7%. I used 0.85 as multiplier and reprinted the cube. Great news is all the walls were almost dead on 0.48, bad news is the bottom fill is not solid. Same spacing issues as the top solid infill.