An update to my bedroom slide drive adventures. A recap from my previous posts (do a search for "slide" on the NRV forum to get a lot of experiences).
1. Original slide drive with right angle bronze worm gear failed-gear teeth wore and broke.
2. Replacement direct drive failed-motor wouldn't give enough power.
3. Now on third setup with replacement motor. Working OK
This post describes some of my and other's problems including links to speed racer's post, who rebuilt his drive.
I saved and did rebuild my original right angle worm gear drive unit using a $48 Martin gear. A friend did the machining which amounted to enlarging the shaft bore and drilling a cross hole for the roll pin. The replacement gear is iron vs. bronze. Here is a picture of the reassembled unit. I now have a replacement unit and it wasn't too hard to do. If only I had known and done this sooner, maybe I would have a couple thousand extra $$ on hand now.