Do you have the delta settings in Configuration.h for us (don't post the whole file please, just the relevant settings), and do they match with reasonbly well with the basic dimensions you can measure (rod arm length from pivot to pivot point, effector diameter pivot point from centre, carriage offset from tower glider to pivot point of rod)?

If you provide me with a set of 7 tower positions that I can plug into this structure:

DeltaParams p = { // probe values from original maxima worksheet
0, 0, // calibError and status
123.983, // delta radius
250.590, 250.590, 250.590, // diagonal rod length
-107.178, // xa
62.015, // ya
-41.687, // xc
-9.49, -9.49, -9.49, // home offset a, b, c
7,
{ // probed points on bed Z = 0 in column coordinates
{227.34, 227.34, 227.21},
{258.65, 170.95, 171.55},
{233.28, 233.28, 127.56},
{170.94, 258.64, 169.76},
{127.96, 233.20, 232.52},
{170.82, 170.82, 258.62},
{233.19, 127.95, 233.80}
},
0, 0, 0, 0, 0, 0
};

Then I can run a numerical optimization for you. Probe the bed at center, x-tower, y-tower, z-tower, and opposite the three towers (in between the opposite two towers) and note the tower positions reported by the firmware. I only need the tower positions and the delta settings from your Configuration.h source.

I have debuggerd and got the source code from here actually working: https://github.com/DejayRezme/DeltaA...utoCalibration and am using it to fine-tune my own delta printer.