Geeetech

I managed to get the DELTA_RADIUS tuned in eventually.I thought the setting would have some effect immediately after changing/flashing setting. I misinterpreted how the setting would take effect.

This the process I found to work:

follow the guide to see if you should add or decrease the delta (i ...

Ok Mark, I downloaded the version you pointed to (Marlin 1.0.3 dev / For metal G2 pro/G2S pro: http://www.geeetech.com/forum/download/file.php?id=1559 )

Then I calibrate MANUAL_Z_HOME_POS to paper test level. This is the only other setting I touch.

I change the offset from 1 to 0, then to 10, then ...

don't change the other settings and just download the original firmware here, change the delta radius to see if it works:
http://www.geeetech.com/forum/viewtopic.php?f=20&t=17046

What other settings do you mean not to change? Should I just go plain vanilla everything (no calibration at all) and ...

After several attempts of following the calibration steps in http://www.geeetech.com/wiki/images/4/43/Geeetech_Rostock_mini_G2_%26_G2s_pro_Quick_Starter_Manual.pdf to great detail (also watched the video I realize I need help.

For the life of me, I can't get the DELTA_RADIUS to take effect! (Step ...