Polymaker Polyflex on a PEI Bed

Talk about materials used in 3D printing

Polymaker Polyflex on a PEI Bed

Postby JonS » 2015-Aug-Tue-16-Aug

I finally had a something I needed to print with a flexible filament, so I decided to use my Polymaker Polyflex that I've had since their Kickstarter campaign last year. Previously I'd only printed a calibration part on my old Jr with painter's tape. This time I was printing on PEI on my Metal Plus.

It printed quite well, with a little bit of stringing, but when I came to take it off the bed it would not come off! I tried heating the bed back up, chilling it with freezer spray, but while I had manage to peel off a corner withing a pallet knife it just didn't want to come unstuck. Eventually I had to destroy the part, as the adhesion of the first layer to the PEI was stronger than the inter-layer adhesion (which wasn't low). It then took me probably 20 mins to gradually peel and scrape off the first layer from the bed, bit by bit.

I'm re-printing using normal PLA for the first few layers. That's fine for this particular part, but is probably not a general solution.

A raft might help. Although the adhesion will still be strong. I might also try a layer of PVA glue.

In any case, if you are using PEI for your bed (an excellent choice), be careful using Polyflex.
  • 0

Printrbot Metal Plus with:

- Dual Ubis 13S metal hot ends (swapped for original Ubis metals)
- Dual Gear Head extruders
- Heated bed
- PEI print bed film

Printrbot Jr (put out to pasture).
User avatar
ACME leadscrew
Posts: 389
Joined: 2013-May-Fri-22-May
Reputation: 20

Polymaker Polyflex on a PEI Bed



Return to Material talk

Who is online

Users browsing this forum: No registered users and 1 guest