My best solution to eliminate raft lifting was cleaning the perf board, freeing the holes from abs debris with the help of a 0.8mm drill, cleaning the aluminum heatbed plate and a perfect calibration after all. Before the print I apply a very thin layer of UHU stic and always print in an ambient temperature of 20-22 degrees with the door panels on. No raft lifting and layer breaks since then. I'm using mostly ZABS.
When I get warping like that I'll clean the perf board with Acetone and then put down a light slurry mixture of Z-ABS & acetone (wiped on with paper towel). Works great.
My best solution to eliminate raft lifting was cleaning the perf board, freeing the holes from abs debris with the help of a 0.8mm drill, cleaning the aluminum heatbed plate and a perfect calibration after all. Before the print I apply a very thin layer of UHU stic and always print in an ambient temperature of 20-22 degrees with the door panels on. No raft lifting and layer breaks since then. I'm using mostly ZABS.
The only thing I would say about this is you do not have to remove the filament plugs in the holes of the perforated board. Look at the underside of some rafts you have removed. The ABS will stick to cold ABS in the holes and not cause enough of an issue to warrant that much effort!
The only thing I would say about this is you do not have to remove the filament plugs in the holes of the perforated board. Look at the underside of some rafts you have removed. The ABS will stick to cold ABS in the holes and not cause enough of an issue to warrant that much effort!
Yes I know that as this is mentioned from the Z Stuff at their tutorials too but for me it worked better to remove them.
Dont' know if I'm beating a dead horse here, but Julia Truchsess a while back ago suggestion of office grade glue works really well and as she said prior, it's way easier to clean up post print and apply prior to a new print.