After getting several good prints while tuning the Z height detection mechanism that is the core reasoning behind complicating the Hotend Chassis of the Gemini printer, I started working on the Smoothieware settings that seemed to be causing some grief when attempting to raise the print speed.
At this point I’d like to put out a big shout out to one of the core Smoothie guys on #smoothieware IRC – wolfmanjm. He confirmed for me that I was on the right path yesterday for resolving my Z axis trimming settings in the firmware as well as gave me some invaluable tips today for tuning the acceleration settings for corexy to bring the speed up.
The results are wonderful. In the below photo, I have the “Cute Octopus” from Thingiverse scaled down 50% and printed with two perimeters at a 0.2mm layer height in the same PLA plastic.
The one on the right was printed at 30mm/s for infill, outer perimeter and inner perimeters. It looks nice and took about 35 minutes to print.
The left octopus was print at 120mm/s for infill, 80mm/s for the outer perimeter and 100mm/s for the inner perimeter and took 22 minutes to print.
While the right one is obviously a cleaner output from the machine, the left one is still quite nice and a lot better than some of the prints I’ve seen. My other machines could never hope to produce something so nicely at these speeds.
Also note, this was the first try – I only changed one setting, so more tuning can and will be done.
For contrast, this blobby looking print was done at 60mm/s for all speeds, before I adjusted the acceleration configuration:
Things are progressing quite nicely.
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