"GarageWoodworks" wrote in message
...
I'm still struggling with my X,Y tables for my H-mortiser. I've tried
full extension drawer guides and they had way too much vertical
slop. I also looked at under-mount slides today at Woodcraft and
they too had too much slop.

I am thinking about using 4 steel rods (2 per axis) and using guide
bushings. Four bushings total inserted into two separate equal
lengths of wood. The wood would support the table (two per axis).
If I lube the crap out of the steel rod do you think this would work?
Hope this makes sense.




About six years ago I was dealing with the same problem you are having in
making the X, Y tables. My solution was to use KV 1129 center under mount
drawer slides because I was given a couple cases of these slides. Using a
set of slides for each table gave unacceptable vertical and lateral play.
This slide has a carrier holding the ball bearing in position as the two
parts move past each other. Seeing I had so many slides I added a second
carrier to each of the drawer slide, cut the drawer slide shorter and
limited the slide travel to several inches. The result is a short travel
slide supported by ball bearing throughout most of its travel with no
lateral and vertical play.

Saw dust has not been a problem yet.

Works for me.



MGH