Messages

71

General Mach Discussion / Re: Finally, Mach turn profile roughing, finishing cycle!

« on: October 04, 2010, 09:24:30 AM »

Melee has a lot of files, there are versions of all three types of roughing programs for versions of Mach for 1.84 and under, and over that. Plus all the documentation for everything and sample files. My Winzip will only zip single files, but it would be much nicer if the whole thing was available here.

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General Mach Discussion / Re: Finally, Mach turn profile roughing, finishing cycle!

« on: October 04, 2010, 08:32:24 AM »

Melee put them all in a folder, there are a few multiple choices and I recall they were at his FTP site, any way on here to attach a folder instead of just a file?

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General Mach Discussion / Re: Finally, Mach turn profile roughing, finishing cycle!

« on: October 03, 2010, 10:58:32 PM »

Hi, I'm still around, no, Mr Melee wasn't in my imagination, but some think I'm crazy, so be it. I have all the G71 files if you need any, they work well and are simple to use, just let me know.

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General Mach Discussion / Re: Turn + Threading problems

« on: July 02, 2010, 10:24:42 AM »

Thanks Hood, Rich, will give that a  try. Save XML to another folder first and then put that back in the right place after installing that version Mach again?

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General Mach Discussion / Re: Turn + Threading problems

« on: June 28, 2010, 03:43:58 PM »

Hi, haven't been on here in awhile. I am STILL using version 1.84 on my lathe, and have had great success with threading and found no reason to upgrade, especially after the massive threading problems that the newer versions seemed to suffer. But, I usually make both parts of a thread, the male and female pieces, and have no issues. However I recently had to do some very long threads that were to screw into a deep threaded hole, and found that the pitch is off by maybe a half pitch over 1.25" of length, and nothing I could do would fix it. So, wondering if the newer versions of Mach have that issue fixed, and are as stable as my old reliable standby 1.84?

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General Mach Discussion / Re: Major/ minor arcs in turn

« on: June 28, 2009, 11:28:15 PM »

Very nice Rich, you have it covered very well. Odd, I would think that the front toolpost would be typical for most Mach lathe conversions, yet for that setup you have to have reversed arcs in front toolpost checkd for the arcs to be the correct direction, i.e. G2 is clockwise etc. It tripped me up for a long time until this whole arc issue came up and it was answered. Anyway, thanks again Rich.

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General Mach Discussion / Re: Major/ minor arcs in turn

« on: June 08, 2009, 01:33:59 AM »

I unchecked the "Reversed arcs in front toolpost" box and it all changed. The arcs, signed with an R, are all minor arcs now, less than 180 degrees. And, funny enough, the G2/G3 directions now are correct. Before when hand coding I always got the arc direction wrong the first time and had to switch it from clockwise to anti etc.
   DaveA.

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General Mach Discussion / Re: Major/ minor arcs in turn

« on: June 03, 2009, 08:59:39 PM »

I have never used a sign with R, but will try it and see if it works. Might make sense since I always get major arcs, which is the larger of the two, well, not a larger radius but larger circumference. I used to use R with a Fanuc turning center and the Fanuc has no way to define major or minor arcs, yet always seemed to be the right one. Fanuc must have some kind of intelligent logic to it's arc definition I guess.

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General Mach Discussion / Re: Major/ minor arcs in turn

« on: June 03, 2009, 01:44:04 AM »

Here's a couple of screenshots that melee got with his testing

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General Mach Discussion / Re: Major/ minor arcs in turn

« on: May 31, 2009, 10:54:56 AM »

Yes, you have it there at that last post. The arc is still the same direction, but the unsigned centre is on the opposite side of where you want, so the arc is theoretically correct in direction, but just like that last screenshot you have. Somebody told me that this problem only shows up with either G3 or G2 but can't remember which, my lathe is not here so I will have to go check more and get a screenshot, but it will look a lot like what you got there.
    DaveA.