Thanks, guys. Let me say up front that you really don't want to accidentally back the ball nut off the end of the screw. I thought I was safe until it started pooping tiny ball bearings. -and BOY, they don't like to go back. -anyway... -I made some spacers. I really don't care if this one doesn't have corners. -I DO care if it stays stuck to the tape. -That knockoff tape! The entire chunk of polycarb came free. The part is OK. It was nothing I couldn't finish up with a wood chisel. I'm a little worried about the chunk of aluminum I just prepped, though. It's def going to come free. -Here's that spacer in the motor assembly. I still lack a buttload of M5 screws. -So I need to convert an Imperial pulley system to 8mm metric. I reamed the part out in increments in hopes it would stay centered. You can guess where this is going, right? - It worked on the first one, but his brother is just not right. I'm hoping it works anyway. That's where I'm at. I also sent a set of models to Bill. I'm hoping he can make the last parts I need. Last? I still have a dozen bits I need to make here.