MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
I designed this Z axis with a leadscrew supported by two ball bearings. This assembly allows to reduce gaps between parts of the axis and gives a higher resolution. Moreover, both ball bearings collect the axial force in the two directions which is important to use the K8200 as a milling machine. However, this design requires a machining of the leadscrew.
The firmware has to be modified. In the "Configuration.h" tab, on line 296, enter the new default step per unit for Z axis (1600 for a 2mm pitch leadscrew) . You can see the modified parameter (highlighted in orange) on the picture.
The new parameter can be calculated with "Leadscrew Calculator" in Repetier-Host (see picture)
Don't forget to reset the EEPROM in Repetier-Host after the uploading of the Firmware. If you don't, your printer will continue to use the old parameter and your printings will fail.
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