This is just an FYI for the DIY'ers... (usual disclaimer that I am not associated with ENCO).

I was looking on ENCO last night and noticed that they had 1/2 10 RHS ACME screws for $6.99 for 6 foot lengths and $4.59 for 3 foot lengths. They also had cheap drill rod and UHMW and Acetyl for linear slides... I guess you can already figure out my plan.

Another item that I didn't need, but bought anyways was 1/2" parting bits for the lathe 1/2" x 1/16" was about $4.50 I think. That was almost 4 times cheaper than I just paid from McMaster Carr (chair) .

Just thought I would share the finds...

mjarus.