Basic Information:
Printer Model: Custom Delta
MCU / Printerboard: ARM Cortex-M0+ RP2040 (BTT Pico V1.0)
Host / SBC: BTT Pi V1.0
klippy.log
Describe your issue:
klippy (1).log (3.4 MB)
I am trying to use Klipper’s, “enhanced delta calibration” routine.
I printed the calibration model at 200% scale, measured it, and per the wiki, entered the following lines into console:
DELTA_ANALYZE CENTER_DISTS=147.7,147.78,147.63,147.78,147.37,147.16
DELTA_ANALYZE OUTER_DISTS=147.32,148.1,147.47,147.48,147.54,147.79
DELTA_ANALYZE CENTER_PILLAR_WIDTHS=18,18,18
DELTA_ANALYZE OUTER_PILLAR_WIDTHS=17.81,18.16,17.85,18.12,17.91,18.09
DELTA_ANALYZE SCALE=2
DELTA_ANALYZE CALIBRATE=extended
It seems like the scaling factor is not working properly; all values generated by the calibration process become a multiple of the scaling factor. If the length of my delta arms is ~440mm, I would expect the calibrated value to be ~400-500mm, but the calibration routine makes them ~880mm (ie approx arm length * scaling factor). Same with delta radius, printer height, etc; they all just get multiplied by the scaling factor. The scaling factor appears to have doubled every dimensional attribute of my printer, and that doesn’t seem correct.