Bearing mont:
Right now my *guess* on the mount is a printed part. The bearing is captive horizontally, but free vertically. It rests on a (hopefully large) washer (or two). The washer is also captive horizontally and free vertically. The printed piece mounts to the plywood with the four bolts that also hold the motor in place after the bolts go through the spacers.
Bronze nuts:
The nuts are about $37. The plastic version is about $35. The bronze parts are not available for all of the screw types. I have some of the plastic flange nuts as well. Right now the idea is to use the plastic nuts for the motion end of things and the bronze nuts to captivate the ends of the rods. Drilling and tapping bronze for a set screw sounds like a reasonable thing to do.
All of that changes several times a day plan wise....
Raised plate:
I wonder if you could simply mount a third bearing on the shafts about 1/2 way up the shaft. Tie it off to the mounting tube next to the shaft. Simple assembly to hold it in place.
Right now my *guess* on the mount is a printed part. The bearing is captive horizontally, but free vertically. It rests on a (hopefully large) washer (or two). The washer is also captive horizontally and free vertically. The printed piece mounts to the plywood with the four bolts that also hold the motor in place after the bolts go through the spacers.
Bronze nuts:
The nuts are about $37. The plastic version is about $35. The bronze parts are not available for all of the screw types. I have some of the plastic flange nuts as well. Right now the idea is to use the plastic nuts for the motion end of things and the bronze nuts to captivate the ends of the rods. Drilling and tapping bronze for a set screw sounds like a reasonable thing to do.
All of that changes several times a day plan wise....
Raised plate:
I wonder if you could simply mount a third bearing on the shafts about 1/2 way up the shaft. Tie it off to the mounting tube next to the shaft. Simple assembly to hold it in place.