Calibration Issue

[Hank106]

I just received my Orion printer and the first 3 parts seemed to print reasonably well. Then the quality feel off quickly and it failed the last 3 attempts due to the hot head scraping the parts off the bed.

I went through the calibration procedure
1) Set Z height in advanced settings.
2) Went through the calibration procedure multiple times
a) Each time the hot head came down and touched the glass at the center (rather the 2mm up)
b)Extruder was too high at the X and Y axes stops
c)Extruder was low (with the extruder hitting the glass plate during the transition) at the Z axis. I have the adjustment screw for the Z axis all the way in, so there is no further adjustment there.

I would appreciate any suggestions. Thanks - Hank

[guanu]

if one screw is all the way in, to get more you can do a few things.... either raise all screws up evenly to get more travel or the other way is to adjust the z screw down, you can get the same effect by raising the x and y screws evenly...

Guanu

[Hank106]

Thanks for the reply.

It turns out that one of the Y axis support arms had slipped off the pivot pin at the cheapskate. I corrected that but am still having difficulty getting the calibration correct. It seems the Z height changes a little after successive tower homing runs.

[PhoenixNZ]

I think I read the other day that someone was having a similar issue and the problem lay in the belt tension on the problem tower (i.e. it was loose).

This may help
http://forum.seemecnc.com/viewtopic.php?f=37&t=6000