So I’m putting together the Z Cart partial assembly and have a couple of questions. First, after the X-motor mount is attached the instructions say to attach the shaft collar to the end of the X-drive shaft. I see no shaft collar in the parts list and so never ordered any. Inadvertent omission? Second, could you give some approximate lengths to divide the 12 feet of belt into? I just want to make sure I don’t cut it to short for any of the 3 belt sections.
The purpose of the coupler is to sandwich in the imperial bearing opposite the motor and keep it from falling out of the bracket. If you’re getting a tight fit already, you can probably run without a coupler, at least temporarily.
You can also get by just fine with a piece of tape or a rubber band in place of the shaft couplers. We ran our test builds for quite some time with just a little piece of tape on the ends of each shaft, and that was enough to keep everything in place.
As for the belts, three equal sections (~4′ each) will give you plenty of belt to work with.