TinyG Board Not Accurate in Z

Started by Gaylord on Feb 10, 2018 in TinyG Support. 1 reply, last activity Feb 10, 2018.

Gaylord Feb 10, 2018 #

I have measured the movement of the z axis by repeating G0 commands.

Stepper Motor Z axis 2.9385 G0 Z-1 3.460 (Average of 5 moves) .5215

Replaced Stepper Motor Z axis 2.9625 G0 Z-1 3.4730 (Average of 5 moves)

Having consistency errors even after tuning. All motors the same. All lead screws and drives the same. No excess binding or friction in Z. Changes in $Z..= varying results. No consistent with 1 revolution.

X 4.9635 G0 G0 X1 5.9765
Y .8150 G0 Y1 1.8225

I bought a new board but have not installed it. Wanted to check with you first.

cmcgrath5035Staff Feb 10, 2018 #

I don't understand the syntax you have shown
What should "2.9385 G0 Z-1 3.460" produce?

What are your Z motor and Z axis parameters?

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