In order to print in duplication and mirror mode, both heads need to be alligned in height. This can be achived through automatic layer compensation, or by installing shims in the printing heads.
Keep in mind that layer compensation is implemented in FW 1.3 and above, so any offset between the printing heads will be automatically compensated by the printer when working in duplication or mirror mode.
Content table
Hotend spacer check and installation
Hotend spacer check and installation
Before starting this procedure, you need to make sure that your printing head is equiped with a hotend spacer on each printing head.
Having the spacer in one head will result in a very big offset between printing heads.
Not having the spacer installed in any of the heads will make the installation of the shims redundant.
In case the hotend spacers are not installed, contact support atomega-assistance@bcn3d.com
If you already have the spacers, follow these steps to install them:
-
Unload filament on both printing heads
-
Follow the steps explained on the shims installation video.
-
Remove the hotend completely, install the spacer and screw the hotend back in place.
/hotend%20spacer%20installation.jpg?width=452&height=402&name=hotend%20spacer%20installation.jpg){kind=spacer}
Z offset measurement
To install shims in omega you need to measure the Z offset between both printing heads, as well as the consistency of these measurements.
Before running this procedure, make sure that the hotends and the printing surface are clean, and that the purge tanks are properly installed so that the nozzle is properly wiped through the silicone cloth.
To launch the Z calibration, go to settings/calibration/Z auto-calibration.
Once the calibration has been performed, check the Z offset in the Z auto-calibration menu.
Write down that value and repeat the proecess a second time to confirm that the measurements are consistent.
Once this is done you can proceed to install the necessary shims.
One shim has a thickness of 0.05mm, so you need to divide the Z offset value by 0.05 in order to get the number of shims needed. For example:
Z offset = 0.34 mm
0,34mm / 0,05mm = 6,8 shims
6,8 = 7 shims
If the offset is positive, shims should be installed in the right head
If the offset is negative, shims should be installed in the left head.
To install the shims, follow the steps on this video.
Once the shims are installed you can run another Z calibration. The offset should be between 0 and ±0.05, indicating that both heads are leveled.