Redoing the HercuLien heated bed today with the proper adhesives. Last time I used a light duty carpet tape to bond the PEI sheet to the aluminum taped window glass. This time I’m using the proper 3m 468 MP adhesive tape from http://zoro.com. The light duty carpet adhesive worked great up until about 95C where it would let loose.
The nice thing about adding the aluminum tape is if I use an inductive level sensor later it will allow closer sensing than trying to read through both the PEI sheet and the glass. I know other people have said the aluminum tape doesn’t work, but Alex Lee recommended it to me and it does work great. It’s a great combination, the flatness of glass and the ease of removal for different bed treatments.
@Luis_Pacheco The PEI (or Ultem) can be used for part adhesion, and so far it has been the best option I’ve tried (hair spray, glue stick, Buildtak, praying…). You need the 3M adhesive to set the PEI on the glass surface. The aluminum tape is useful if you’re using an inductive probe for the auto leveling feature some firmwares offer, the aluminum tape will be as flat as your glass surface, rather than trying to tram your bed against the aluminum bed (if you have one) which is usually not really flat.
I can print ABS right on it with zero bed warp on the Delta in open air in my office during Minnesota winters with a temperature of 16C in the office on cold nights.
I am so happy I made the switch. I always hated the glues, slurries, kaptons, hairspray. I just wipe it down with acetone once in a blue moon to remove any hand oils… Hit print, and walk away.
