With the awesome new PEI sheets out on the TAZ5, it’s likely that some folks will be printing ninjaflex on it pretty soon. Ninjaflex sticks a bit TOO well to PEI, and it you’re not careful, you can damage the PEI trying to get parts off. Here are a few suggestions to keep that from happening
If you’ll be printing with Ninjaflex a lot, the best way to go is to get another glass bed plate that you can swap on when printing with ninjaflex. TPU sticks great to a cool glass, so you won’t be needing another heater or any tape. This is how we print with flexystruders in house. Something like this should do nicely (https://www.lulzbot.com/products/borosilicate-glass-bed-300mm-x300mm).
An easier option for those that won’t be doing enough flexy-printing to justify a second bed plate is to cover the PEI with painters tape. The ninjaflex will separate from the painters tape pretty well, and it forms a nice barrier to protect your PEI.
Hope that helps