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.... ok, I found "extruder calibration " topic from Polygonhell ....

thank you polygonhell & cassetti.
I need ABS for my parts,
so I will modify original drawing for have the good sizes.
With experience, I should quickly match drawing according real dimesions
I will check also single wall thickness,
Is there is a post about this ?

I use solidworks to draw my parts, I register file in STL file format, before to load it in repetier-host, The distances are off for wheel-shaped part of 48 mm diameter and 16.3 central hole, I measured 47 mm and 14.7mm diameter for the central hole. the levels are ok note : weel is printed flat ...

Here a best result,
U joints were very sticky, on the 3 arm plates,
still small defaults but now I know origin
thanks all

sorry my english is not perfect and I didn't understand all perfectly, so i confused "next" by "in face of" you say me that the engraved top support have to be near the z axis, even, the top support seem to be "symmetrical" in the 3 axis, this is not the case do you think that this is the origin of ...

so this one perhaps ....
yes, the engraved part number is on top almost face the z axis

It It the good support photo ?

arm.png only arms tremble in horizontal way and a little the head also sometimes, I use marlin for RAMBo firmware and RAMBo card.(all from seemecnc complete kit) in what fille could I set the value to 185 (configuration.f, steppers.h ....) ? What is the data/variable name to set ? I prefer to test ...

In some travels my arms don't move regularly, with trembling and vibrating by small steps U aluminium joints are sticked, With the steel axes, and with the plastic supports, near the end ans near culumns. Iit's necessary, I think, to put off all the arms, and verify all connections - as detailled in ...

Thanks,
I will check tis tomorow,
From begin, I hear my arms squeaking a lot,
do you think that few drops of vaseline oil could help ?

calibration was long, but I think that "holy" delta arms blues will be required also....

Hi
I have almost a perfect cube, but columns are not aligned between corners, someone could help me to avoid this problem ?

Hi, a new rostock max in south France,
great thanks for clever design and geneb for the very useful assembly guide.
first test print perhaps this week end if lucky