For 3D Printers that use PEI/Ultem bed coating.
Printing Nylon or Nylon Alloys on a printer with a PEI bed material can be difficult to get the part to adhere. While PEI works great for PLA and co-polyesters, it does not work as well for Nylons or Nylon Alloys. Using a replaceable glass surface as noted makes it easy to go back and forth from a other materials to a Nylon based material.
We suggest users with PEI sheet for bed surfaces do the following:
For a TAZ5 3D Printer....
1st, print the attached stl file below for the Z axis thumb screw in any material already loaded. (Other printers will require a similar design to off-set their Z axis when adding glass to their bed.)
Use a piece of window glass ~11 x 14 (Home Depot carries this size.)
Clip it onto the bed with binder clips. (Please make sure the bed is clean from any print remnants.)
Place the printed cap onto the thumb screw to off-set Z axis for the thickness of the glass.
Make any small adjustments to set the correct Z height.
Take a rag and wipe a layer of Elmer's Glue All (No other glues work and this will wash off)
Heat the bed to just 45C...The glue should dry in a few min.
Then Print in any of our nylons...
Nylon sticks extremely well to the cellulose materials in the glue and the "binder" in the glue, sticks very well at 45C to the glass..!