I'm Stuck. Need help calibrating endstops and Delta Radius... Please

Hello!

I've been going round and round trying to calibrate my printer. I'm running the Latest Marlin. (DELTA)

I have measured my X Y Z (A B C) Towers

I can reach the bed (with a thick piece of paper:)

TOWERS:

(X) Z1.5

(Y) Z0.6

(Z) Z0

CENTER Z0

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I've tried M666 with out much luck in Repetier Host.

I tried:

M666 X1.4 Y0.6 Z0

G28

G1 X-70 Y-40 Z0 F5000

And the head crashes into the bed. I get the same effect with our without the M666

If I go back to:

G28

G1 X-70 Y-40 Z1.5 F5000 (My X tower, I get level.)

I even tried the reverse:

M666 X-1.4 Y-0.6 Z0

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I do not have screws on my carriages so I cant to manual ajustment. Should I just start akking tape to the bottom of my bed?

Thanks!