You will need to export them as two separate STLs and then compline them in Cura. STLs don't have separate objects in them. You can also export it as an AMF and import that into Cura. I don't know how to assign materials in Cura but you will be able to export the separate bodies from MatterControl.
The retina problem is fixed and the build has been updated. The normal download should be working well now.
Outstanding Items (Update early next week):
Not signed by Apple (you will need to go into settings to allow the installation)
Uses 100% of one core
Please let us know any problems you find. We will be updating this rapidly until we get it very stable on Big Sur.
Update to driver problem!. Just done the latest Windows 10 update (version 20H2) and also chose all the optional updates and my Ender3 v2 printer is now recognised and working fine with Mattercontrol. !.
Same thing here, found this as I was pulling my hair out trying to figure out what's wrong with either my computer or how I was doing it. The lifting trick didn't work for me similarly have put a few days into a design (probably the most complex thing I've built so far) and now can't finish it. It just hangs on "Split faces 2" for me. Does anyone have a solution? Are there other good programs out there that would read the .mcx files??
@larsbrubaker thanks! The only place I could ever find was after already installing MC. There was even a forum message about that exact things some weeks back and the only mention was in MC.
As for the profiles issue - it affected all my slicer profiles - solid, 35% file with different bottom and top solid areas. I was able to fix it, but only after I figured why my prints started shifting.
@hamprinter Thank you! I just figured that out myself last night as well, came here to post that was the cause. Hmm. Feel like that setting maybe should be grouped with the speeds, but thats a UI question.
OK, this appears to be a problem with the baud rate after all. I was able to work around it, once I discovered that even thoughg it did not connect, I could manually set the baud rate in the printer profile (in this case to 115K).
Now it connects.
I have not tried MC in Ubuntu yet. But I can offer you a few thoughts.
If you run the following command, does it display the group was added?;
Also found this post about modemmanager causing problems with dialout.
Other thoughts would be; try loading the software as root/adding user to root group/allowing login as root
(I understand security implications but just thoughts for troubleshooting)