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2mm higher on Z axis then opposite end?

Posted: Tue Jan 29, 2013 11:05 pm
by truenorthtrader
Hey folks.

I'm a bit confounded. WHen I set extruder to
G1 X0 Y0 Z3 F5000
then G1 Y70
then G1 Y-70

The it's 2mm HIGHER at G1 Y70 then G1 Y-70.

Anything I can do software wise to fix that?
I tried moving the Z Axis Rail and it helped but is there something in the FIRMWARE I can change?

I messed with the "#define DELTA_RADIUS (DELTA_SMOOTH_ROD_OFFSET-DELTA_EFFECTOR_OFFSET-DELTA_CARRIAGE_OFFSET)" plus and minus some but didn't seem to help

many thanks!
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Re: 2mm higher on Z axis then opposite end?

Posted: Wed Jan 30, 2013 12:02 am
by Polygonhell
truenorthtrader wrote:Hey folks.

I'm a bit confounded. WHen I set extruder to
G1 X0 Y0 Z3 F5000
then G1 Y70
then G1 Y-70

The it's 2mm HIGHER at G1 Y70 then G1 Y-70.

Anything I can do software wise to fix that?
I tried moving the Z Axis Rail and it helped but is there something in the FIRMWARE I can change?

I messed with the "#define DELTA_RADIUS (DELTA_SMOOTH_ROD_OFFSET-DELTA_EFFECTOR_OFFSET-DELTA_CARRIAGE_OFFSET)" plus and minus some but didn't seem to help

many thanks!
A
If the issue is at both ends of the axis, you need to adjust the endstops, that firmware value only adjusts for it being higher or lower in the middle vs every outside point.

Adjusting the endstops is about making any circle around the center level with the bed, DELTA_RADIUS is adjusting for the geometry.

Re: 2mm higher on Z axis then opposite end?

Posted: Wed Jan 30, 2013 1:12 am
by truenorthtrader
Thank you again Polygonhell!

As I was watching TV it hit me to adjust the endstops and checked your message said the same.

I had calibrated it numerous times but on printing it was off, I realized the first Z adjustment I made every time was making it higher at the one side so I readjusted and checked and seems good now I'll try a test print.

Thank you again!
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