Delta Radius - Impossible

[justprintit]

XYZ endstops are all calibrated, but when I run:
g28
g0 f8000 x0 y0 z0

Z is at least 2-3mm above print bed.
While all towers are grubbing paper.

So technically adjusting Delta Radius should fix it, but



changing "#define PRINTER_RADIUS 197.40" up/down (tried 180-280) does not seem to have any effect at all.




rest of relevant values remain the default...
#define END_EFFECTOR_HORIZONTAL_OFFSET 33
#define CARRIAGE_HORIZONTAL_OFFSET 35

Also EEPROM Is disables, #define OPS_MODE 0


I tried contributing by increasing
#define X_MAX_LENGTH 366.5
#define Y_MAX_LENGTH 366.5
#define Z_MAX_LENGTH 366.5

Now Z0 (g0 f8000 x0 y0 z0) will touch the sheet of paper, but towers (G0 f8000 x-77.94 y-45 z0etc ) will collide, and if I raise endstop screws, Z will be too high again.



So I can Have nice Z0 in am middle point only, or nice Z0 in the 3 tower point, but impossible to balance all 4 points. It's a loop!!! Please help!

[geneb]

If you don't re-adjust all three towers after changing the PRINTER_RADIUS value, you'll NEVER see the result of the PRINTER_RADIUS change. The calibration steps are very clearly outlined in the manual.

g.

[justprintit]

ohh wow, thanks geneb!

[geneb]

You're quite welcome! Good luck!

g.

[edward]

The first time you realize that this is the setup procedure, which geneb describes quite well, you'll think to yourself, "WTF!?"

Eventually you'll be able to fully re-calibrate the printer in 5 minutes or less.

Good luck, and start looking forward to the day that the software will do this for you, because it's not too far around the corner

[justprintit]

Thank you edward
I am glad that software did not do this for me, it's the best way to learn. I finally get it!