Getting PETG to stick

[Farr0wn3d]

I've tried printing with the bed at 87 and 60, with PVA/water and with hairspray and no matter what, I get parts lifting off the bed at the edges, not just on large parts either.

I'm using garnier fructis hairspray, "ultra strong" hold. but maybe theres a better choice? let me know!

[Vandal968]

I've had good luck with both elmers glue stick and aquanet. Although, after reading here about the joys of PEI, I switched a few weeks ago and it's fantastic, I don't plan on ever going back to those messier solutions.

cheers,
c

[PcS]

I you are having those problems with petg and hairspray then I highly recommend releveling your bed and adjusting your Z gap. When you get everything right prints don't come off the bed very easily even after it has cooled.

[jimc]

Yeah i agree. Your using the right hairspray so if your bed gap and first layer go down right then petg will stick fantastic to that spray with no issue.

[Farr0wn3d]

Bed gap, bed level, and extrusion calibration as most definitely NOT the problem lol, I level my bed with a dial indicator gauge with excellent repeatability, I do the 2mm calibration print for both extrusion and z height every time I change my hot end.

I put my first layer down at 97%, sometimes 95%, maybe I need to lay it down thinner?

Vandal, where are you getting your PEI from?

[Vandal968]

This is the PEI I bought:
http://www.amazon.com/gp/product/B0013H ... ge_o08_s01

and this tape:
http://www.amazon.com/gp/product/B007Y7 ... ge_o08_s00

If ordering again, I'd probably go for wider tape, maybe 2". The edges are a bit tricky to get laying flat. Twice as wide, half as many edges to worry about.

cheers,
c

[Farr0wn3d]

so you just cut the PEI to the size of the glass and then stretch it and tape it around the to back?

[Farr0wn3d]

could you post photos of your setup?

[Jules]

so you just cut the PEI to the size of the glass and then stretch it and tape it around the to back?

PEI doesn't stretch, it's a solid thick sheet of plastic that you attach to the glass using the tape, and then trim away the excess plastic. It's very hard to cut without a plastic cutter. (Available at Amazon.)

There is a thread on it, with the best methods for applying it here:

viewtopic.php?f=10&t=2296

[Farr0wn3d]

what filaments stick to PEI?