I think your initial assessment that you got two x-axis backers is right on. Personally I'd make it right before using it. Your not going to hurt anything, but it's a pretty quick fix between a phone call or subtracting the excess material from the other x-axis backer. Make sure you are really clear about what part you are asking for on the phone. If you say split nut they will only send you the threaded half. You need the half that is not threaded or officially known as the "Y-axis backer".
There has never been an update to the backer to the best of my knowledge. There was an update to the threaded portion that included two shoulders that prevent the nuts from twisting but I can't tell from the photos. Get a can of Dynaglide when you are on the phone to Legacy. Also remember if things are not sliding freely in the first place, take a moment to find out why. Lately I've seen several machines all suffer from having bushings that are oversized to fit in the rails. It leads to excessive wear of the split nuts. Also check the acme screws for any metal burrs and clean them up with 220 grit sand paper if required. Also watch for screw being too long and rubbing against the aluminum. That's another frequent gotcha. Good luck, -Tim ----- Original Message ----- From: begatbrown To: legacy-ornamental-mills@googlegroups.com Sent: Saturday, February 05, 2011 6:20 PM Subject: Re: Does It Matter if I Use a X-Axis Split-Nut Backer on the Y-Axis Lead Screw? Hello Bill, Curt, and Tim, I'll give Legacy a call on Monday and see whether they have any split nuts in stock. From what I can see, the machine was shipped to the original owner in the fall of 2009, so if there were any modifications to the split-nut design by then they did not make it into either the video or the printed manual. If push comes to shove and it affects performance, I'll try Tim's solution. The router did come, and the backwards set up does not interfere with the router controls, and I am able to lock the nut and move the carriage along the y-axis. With the cooperation of family and friends and a little luck with following instructions, I might finish the machine tomorrow. I had planned to wait to use the machine until I could frame out a small room and put in an exhaust fan, an air filtration system, and cyclone (yes, I've been scared straight by the dust issue), but I want to see how big a deal the problem is. By the way, Bill, I took your advice and bought your friend's extreme extension. I should have it Monday. It gets rave reviews most everywhere. Thanks for putting me on to it. Begat -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To post to this group, send email to legacy-ornamental-mills@googlegroups.com. To unsubscribe from this group, send email to legacy-ornamental-mills+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/legacy-ornamental-mills?hl=en. -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To post to this group, send email to legacy-ornamental-mills@googlegroups.com. To unsubscribe from this group, send email to legacy-ornamental-mills+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/legacy-ornamental-mills?hl=en.
