Shapenfab,
I have owned a TM1 for 8 years now. I would HIGHLY suggest you follow Blackholes method of improving the y-axis. Cam followers are mariginal at best.
I have to continually clean and adjust mine rig. You are at a point that is perfect for making this improvement. Had someone made this suggestion years ago I would have jumped at it.
TM uses cam followers to keep their price affordable IMO.
I made this suggestion to Blackhole and he followed it and has been well satisfied as far a I know.
Best of luck on your build!
Tom |