Very nice. I thank you for sharing with us. Could you show me a closer look at the stepper motor on the head stock? I cant see how you mounted it, But as for me I like what I see. Good job and again Thanks.
C.A.G. ----- Original Message ----- From: Chainlink To: legacy-ornamental-mills@googlegroups.com Sent: Saturday, August 04, 2012 4:52 PM Subject: Re: Legacy Parts Hi everyone, thought I'd chime in since my name was mentioned. Yes I do still use my converted 1200 as a CNC mill. I'm exceptionally happy with the automation it has provided for the simple things that I like to do. I did start from the advantage of already having steppers, drives and a power supply from another CNC project that I tore down. You know how it is with me and photos, hopefully they'll show up :) If they do show up, you'll notice that it's a pretty simple bolt-on setup. I'm totally happy with the way I did it even though it is a bit cobbled together and imperfect. I get about 60IPM rapids on the X and Y, 30 on the Z and 60 on the A. Whip on the X leadscrew gets too bad above 80. I have a 6:1 gear reduction on the A axis, and I just changed to a 3:1 on the Z because I was losing steps when raising the router. X and Y are direct driven. All steppers are NEMA-23 387oz. The biggest problem I have to deal with is the rack on the carriage when changing X directions. I'm actually happy with the lead nut on the X and Y and don't see a problem with it. The second biggest problem is that I need to have some kind of set screw on my self centering chuck. It spins fine in the one direction but it loosens when it spins the other direction. There was some chat on here previously about a stop collar with a pin in it, but I haven't been able to find one and implement it yet. Please keep in mind that I do simple things with my CNC setup. I run simple commands in mach3 to make stock round--on 1.625 square stock 48" long, I'll run a command like G0 X48 A192 for a 1/4" cut the length of the blank. I very successfully cut threads in my 1.5" rods (at 5tpi) which was my original intended purpose for the upgrade. -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To view this discussion on the web visit https://groups.google.com/d/msg/legacy-ornamental-mills/-/w5jKNpKGM5YJ. 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.
