Thanks Erik,
Add it to the wish list of the programmers I suspected I would have to re-calibrate but always looking for a shortcut.

After some tweaking and changes I have been successful in printing with ABS, which after my nylon debacle makes me quite happy. One on the main changes was tweaking my Z-offset to achieve the near perfect "squish".

So can I save these settings to my ABS or when I go to a different filament will I have to go through the whole tweaking process when I return to ABS?

Second question is when I change back to a garolite plate and re-level with the Z-offset need to be reset as well?

I will take a look, I guess I am more concerned about these "out of filament" messages when it's loaded and ready to roll.

Had to go digging for the link as well, is this a subtle message?

Just when you think things are going well, I decided it was time to take my new roll of ABS for a spin. Set up a brand new Buildtak surface, load the filament and squeeze out the old until the new runs clear. Level the print bed and start a test print. It homes properly, comes up to temp and goes to print the first "clean the head" line, stops half way and says I am out of filament. Check it all out and no it looks good so click "Resume", it drops a little lower, stops again with the same error. I click "Resume" again and then drives the hot end into the edge of the print bed and tries to drag is across mangling the level pin slightly and finishing of the holding bracket that was already somewhat melted.

Luck for me I had a NylonG bracket built so spent the morning replacing parts and setting up again, back to NylonG to print another hotend bracket before I do anything else. It's currently printing away happily like nothing had happened.

So what is the proper procedure when this "Out of Filament" error pops up when there is no reason for it? Do I clear everything, unload and reload and begin anew print? Or am I missing something when it comes to resuming a print?

That looks pretty slick,.

Wrong country I am afraid, I dove into 3D printing for a work project, your math runs rings around this newby. Actually I think I was doing better when I knew very little....

That is impressive, obviously I need to come and take your course.

@pverdin I have printed out the lock and installed and noticed where the current mount is melting, but the lock plate has made a world of difference in the prints. Printed a new mount from NylonG and will install soon,.

One issue I continue to struggle with is the prints curve up at the corners from the garolite/glue 70 degree heat. Some more than others, I have leveled bed and re-calibrated the Z offset. Unit is in an enclosure and filament is in the dryer. Not sure what more to do.

Nylon G - 260 degrees.
Garolite bed - 70 degrees.

Not sure if you can see the curve in the "spine" or not.

@mpirringer Thanks for the in-depth response, I will give this a try but not today, not enough time today. I will let you know what I find.