nanoDLP

georpo

Member

Registered: 2018-10-28

Posts: 8

Part is bigger in height!

Hello friends!

I have made a custom dlp printer with ramps 1.4 and nanodlp.
If I give Gcode G1 moves from the terminal the Z axis is going to the correct position verified with a ruler.
But when I actually print, the part is about 1.5 times bigger is height (Z).
I know I should first double check my steps/mm in ramps code but it works correctly from the terminal!

Start of Print Code
G90
G28 Z
[[WaitForDoneMessage]]
G92 Z0
[[PositionSet 0]]
M17

Code Before Each Layer
G1 Z[[LayerPosition]] F200
[[WaitForDoneMessage]]
[[PositionSet [[LayerPosition]]]]

Code After Each Layer
G1 Z{[[LayerPosition]]+[[ZLiftDistance]]} F100
[[WaitForDoneMessage]]
[[PositionChange [[ZLiftDistance]]]]

Please help!!!

georpo

Member

Registered: 2018-10-28

Posts: 8

Re: Part is bigger in height!

My Z axis skips steps!
I increased the TB67S109AFTG current to 4A, cleaned the lead screw but again it skips steps when printing the little 50um steps.
Any ideas? acceleration settings?