Jan Wildeboer 😷:krulorange: on Nostr: The discussion page at reprap.org on heated beds goes back to 2010, for example. ...

The discussion page at reprap.org on heated beds goes back to 2010, for example. Here's the version from 2010-01-24 (hey! My birthday!) https://reprap.org/mediawiki/index.php?title=Heated_Bed&oldid=5370 which already contains examples of polymer coated versions by describing nophead's approach of an aluminium heated plate with Kaptopn tape on top ;)