I think I would not increase the friction on the opposite side of the lead screw. Leave that to float. If the round bushings on the rails are not touching the top and bottom of the groove, I'd be willing to bet they have divots in them. You might want to rotate them to a new spot fresh spot. This is the plain round barrel type, not the top hat ones.
-Tim ----- Original Message ----- From: Dustin Yoder To: legacy-ornamental-mills@googlegroups.com Sent: Thursday, July 07, 2011 6:24 PM Subject: Build log of sorts for a 1200 upgrade to CNC I started my carriage upgrade today. I followed the adjustable gib strip topic here on the group to make a few adjustments to the carriage. After the changes, the carriage fit is a bit tighter and a bit harder to push along the rails. The slider block I added to the back side of the carriage is just a touch thick and it brought the round bumpers that run in the back rail to the top of the channel--which is why I think it's a bit harder to push. So, did I actually accomplish anything? I think I did. I put the Z-axis back on and locked down the X split nut and ran it up and down the rails a bit. Turning the X leadscrew is really really smooth now. I've also noticed that I can't detect any backlash in the split nut when I change directions. I'm not saying that there isn't any there, but I am saying that I can't see it, which is a bit better than it was. Before the upgrade, I had noticeable racking in the carriage from the front rail to the back. While this was not eliminated, it was reduced. Do you think I could improve my result if I add another rear carriage slider and put them on each side of the carriage rather than having one in the middle like I have now? -- 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.
