PLA bed adhesion

[jponitz]

I am having a problem with PLA curling off the bed of my new Orion. It's strange because I have another Orion that hasn't had this problem, and I didn't think this was typically an issue with PLA.

Bed temps have ranged from 40-70
Using glue stick for adhesion
Nozzle temp 200-210
First layers .35mm thick, 30 mm/sec
Have tried with the cooling fan on, and off

Any ideas where I'm going wrong?

[KAS]

Do you know it's PLA for sure? lighter trick?

[youtube]http://www.youtube.com/watch?v=cvg3u89EJwA[/youtube]

[mhackney]

Have you read my guide?

Fingerprints, potato chip grease? Have you printed with this roll of PLA on the other Orion?

My guess is your Z height is not correct. Increase your Z height in increments of .05mm and test print my single layer object until you get one that sticks. NO cooling fan on first layer!!!

[jponitz]

Thanks KAS and mhackney, I will test out your suggestions and let you know what I find. I have a sneaking suspicion it's the Z height.