Having drilled the first hole, you could bolt the rods onto the Unimat base, which will hold the rod in the right position for drilling the second one. You could also turn it over and spot through the base to get the spacing right. You just need a little care to avoid enlarging the hole in the base. I would spot through with a centre drill, preferably one that matches the hole in the base.
Keith
---In UNIMAT@..., <roman@...> wrote :
I am late to this question, but I made extended way bars for both
axes of my Unimat in order to mount stepper motors on each axis.
You can see pictures (and drawings) in my album (and in the Files
section).
I used O1 ground tool steel 12mm bars that I bought at Metal
Supermarket (here in Canada).
I used a regular drill press to drill the holes, I drilled and taped
the first hole and then I used a long bolt in the hole to properly
judge the orientation of the round bar in the vise while drilling
the second hole.
It is easier done than described, human eye is a precise tool.
Roman
