# The X & Y size are different with Z coordinate for 1cm cube (Delta 3D printer)

I'm building the delta 3D printer, about machine size, i use the ruler to measure all our need.

it includes below items.

1. Z length (Z_MAX_LENGTH)

2. Diagonal rod length(DELTA_DIAGONAL_ROD)

3.Horizontal radius when centered(ROD_RADIUS)

4. Max. horizontal radius(DELTA_MAX_RADIUS)

When i tried to print 1'st object (it's 1cm cube), the Z-high is correct (Z high almost equal to 1 cm) , but the long in X and Y equal to 0.7 cm

And i don't know what's error,

If you have any experience about this issue, please help me to provide some direction to solve it.

Thx!!

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