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I do it because I CAN and want to do it. Its not a money thing. I do it to prove to myself that I can. A hobby is not all about saving money, sometimes it is proving that you can do it yourself. If...

All I can say is when I converted my RF-31 back about 2000, I left the original lead screws in and within about 2 months (even with a one shot oiler), I had worn the bronze nut out enough to "walk"...

fivetide,
Anytime my friend as I have been there done that and have the tee shirt to prove it!

NEVER take anything for granted and then double check as you will usually be wrong.

Don't ask:})

Be glad to offer my advice on anything I can, just take it for what it costs:})

I find new stuff everyday and most of it comes from the yahoo forum.

For my cad system, I use Draftsight (www.draftsight.com) which is freeware made by the people who make solidworks. It is an excellent 2D autocad lookalike. For cam, I use Sheetcam (www.sheetcam.com)...

remove the gib strip so you can lift the table a bit and slide it over the X axis nut.

USB to LPT to my knowledge has NOT worked for anybody to date.
Did you try it with the "buffer" and the old computer?
At this point, I am at a loss without sitting down with you and a meter to...

Tim,
a pair of single row angular contact bearings as you can eliminate any backlash. A single (inexpensive) double row bearing may or may not have backlash problems.