I’ve known about them for a while but never thought of a good use for them until I saw Kaizen 3D’s face down prints. Then I waited until he got ones big enough for the Prusa XL’s bed in stock. So I’ve only had them for a little over a week, but I’m already obsessed. They make prints look so good!
Also first layer height is 24 mm...not sure if that's helpful for this problem, but Daniel at Kaizen 3D recommends that in his instructions for the PFLATs he sells so I thought it was worth mentioning.
I don't know if this would help, but I also set elephant foot compensation to 0. I did that to get more accurate shapes on the first layer, but it might help a little with small pieces sticking.
Oh no! I don't know how much I can help, because I somehow have lucked out and haven't had any issues, either with the PFLATs or the silk filaments. But I can share my settings.
Bed: 60°C
Nozzle: 230°C first layer, 225°C after (but had no problems at 215°C either)
Speed: 20 mm/s first layer
Comments
Using PLA with 50c bed and first layer at 15mms and small pieces are still not sticking.
Washed with soap and cleaned with ISO.
Did you find any tricks that worked well?
Bed: 60°C
Nozzle: 230°C first layer, 225°C after (but had no problems at 215°C either)
Speed: 20 mm/s first layer