PRUSA MK3 Heated Bed Temperature Differential
Hi All,
I was having problems with an ABS part warping at both ends of the print. Part was printed on PRUSA PEI sheet. The lifted surface on the part accounted for approximately 30-35% of the total surface area. Understanding that ABS has that tendency warp, placed a 3-sided enclosure around the MK3 to minimize stray air currents and increased the bed temperature in increments of 5C degrees (maximum bed temperature 110C. This did not resolve the lift problem. Next measured the temperature of the heated bed at nine different points using a Fluke IR temperature gun. Measured temperature range 5.8C
Next re-positioned the part on an area of the heated bed with the least temperature variation. Part surface lift was reduced from 30-35% to 5-10%.
Wondering if anyone else has measured the surface temperature differential across the heated bed surface and results.
Regards,
Ken
Re: PRUSA MK3 Heated Bed Temperature Differential
I have. There is variation. I suspect the reasons are many. An enclosure can help by keeping the air being circulated by the fans nearer the temp of the bed and part. Another solution that helps is increasing bed temp. But when using higher temps, you also risk the part pulling the PEI up, too; especially with PETG.