Okay, so most of you know to some extent the table on Patriot models before they moved the X axis to the center. I assume the change in location did address this, please correct me if not. Anyway the table twist about the z axis & along the x-y axis was really becoming pronounced when I was trying to rough in a pulley from a piece of 6" rnd. stock. So I spent the next couple of weeks realigning everything, replacing bearings, checking everything & finally noticed the table twist on a fluke when I had the Y axis cranked almost to limits. Surely, I couldn't be the only one who would overlook this, I mean whenever I'm checking alignment or repeatability the first thing I do is send everything to their home position. Well, in short, I'm stubborn & it shows in how I fixed the problem.

JT suggested I machine some extensions of the saddle where the contact the ways & increase the gib length, I told him they was a good idea I think I'll go that route. The next day, I realized I already had an extra ballscrew & nut, so all I needed was some angle bearings & misc. hardware & I could add an extra ballscrew. That was back in Oct-Nov. 2012 & it's been 10 long months coming up with some of the most creative uses for a drillpress in order to machine 5/8" plate steel with relative accuracy to fix, support dual ballscrews. In the end, I can say it can be done with enough patience, time, & a net 30 account with Grainger & MSCDirect. I wouldn't suggest doing this but if your inclined to have a ROCK SOLID table dual ballscrews will certainly provide that. Here's some links to my Dropbox account with photos of the patriot, sorry they're from the iPhone & kinda crappy quality...

Wormwood

https://www.dropbox.com/s/821kahk6oo...%2040%2056.jpg

https://www.dropbox.com/s/lpuio47o9r...%2019%2032.jpg

https://www.dropbox.com/s/wf3zi5p4uu...%20%281%29.jpg

https://www.dropbox.com/s/mvwktip5f5...%2020%2050.jpg

https://www.dropbox.com/s/u7wg1uixus...%20%281%29.jpg

https://www.dropbox.com/s/fmb5sqhbn8...%2047%2020.jpg

https://www.dropbox.com/s/tgn8vjg7ea...%2044%2014.jpg

https://www.dropbox.com/s/1i8m916359...%2014%2036.jpg

https://www.dropbox.com/s/rbmqon4zvw...%2045%2041.jpg

https://www.dropbox.com/s/egyq1pxdt7...%2036%2008.jpg