Tried full ver of Cimco Edit to do just that with no luck. Heeler's sugestion should work good, but if you have a lot of files to do this way I have a little vb script to do just that, courtesy of our friend from CNC Software, Roger Martin. It's for a lathe and flips nc file across x axis but should be easy to modify for y axis. Should still be on ftp (flip_it), if not then I can e-mail it to you. Kind regards, Mark

+1 to Seco and Mitsubishi. Run great on variety of materials, from alum to 60Rc A2. Scary feedrates Surprised about ceramic bearings statement I doubt it will do any harm. Kind regards, Mark

Yes there is. If there is a lot of keyways you do try this: web page but it will set you back about 5k If you don't do them often then regular hss broach, strong arm and a lot of patience will do the job just fine Oh, and welcome to the forum Regards, Mark

Nick was responsible for gov. contracts. Very kind man. The last I heard from him you guys got some several milion transmisions to build . Please say hi to him if he didn't retire yet. As far as machines go, you can't go wrong with OKKs. They are as good as Moris. I don't think G60 is gonna be much help with your problem. As you mentioned before jig borer is a way to go with this kind of tolerance. The key is to put this job on a best machine you got. Another thing to consider is doing a ball bar test to make sure machine is level and set up properly but don't trust this test completly because it may not show z axis being slightly out of whack. Lastly check how straight the z axis is. We had this problem on our Mori when we run some crazy tolerance parts with long projections. I was shocked to find out how easy it was to adjust this, just a few set screws and the spindle axis was perfect. We didn't even know there was this slight misaligment until we encountered those parts Kind regards, Mark

quote: The tool sounded like it was begging for more feed. I'm now a believer. So am I. Welcome to the club. Still hoping for a better toolpaths from MC. Been using plungers for about six years now but I'm not very happy with current toolpaths options from MC. Maybe in MC X?. Regards, Mark

Hi pbo. Say hello to Nick Chupick for me if you please. Lost touch with him the last couple of years. Is he still around? Great guy. Still doing M1A1 Abrams projects? Kind regards, Mark Banaszak

Glad we could help Kind regards, Mark

quote: Urma through Command Tool. Swiss made. Top notch quality. But, also has the price to go with it Exactly Robk. But if you don't crash it, it will last forever. Ours are 15+ years old, work like a charm. Go for a best quality, much better in the long run. Regards, Mark

Oh boy, there is a bunch of choices... If I had to replace mine, I'd do for Command Urma Boring System. They are good to 20000 rpm, sizes .040" to 31.630" and can be easy set to .0001" Hope it helps. Regards, Mark

The width of part is only 3/4", so 1" cutter will work great. Kind regards, Mark I'm browsing their web site as we speak...

Just found this cutter and inserts(univex) in a tool crib. These were regular ticn inserts so i guess that's where a difference is. My, it's been 6 years since I used this cutter. Time goes by a bit too fast around here... Thanks Hardmill, appreciate your input. Here is to you buddy Kind regards, Mark

It's a cat 50 mori vmc's. No problems with rigidity and accuracy Kind regards, Mark

Tnanks for a quick reply Hardmill. Tried Fette few years back with not much luck above 55 hrc. I'll look at it again though, maybe they have better grade inserts than before. Is 90 deg insert with about .005-.010" rad. what u have in mind? They are not that expensive. I was quoted $80.00 per CBN insert for a mits cutter which I thought was way too high Kind regards, Mark

quote: I got more pricey suggestion if you need them. With these tools you'll be in the 800sfm range. Again it depends on your machine. Hi Hardmill, now I understand your avatar Willing to share those pricey options ? Thinking about indexable Kennametal cutter with ceramic inserts but could use your advice on this. I've got some A2 55-60 rc to face. Only about .005" but need a good finish on it. Kind regards, Mark

From poking around this forum I've learned that ATI and Mastercam don't mix very well. My 3d files are peanuts in comparison to what some guys here do so I don't have this problem, but cpu usage is going to be high (as high as 100%) because mc is a one giant exe file. From what I understand this will be fixed with the MC X. CNC Software is rewriting the whole code so it'll be more efficient and easier to upgrade, change... Regards, Mark

Looks like I'm about to quote: Do a google search for "mastercam x" and see what gives Mark

quote: I was hoping maybe a hand would reach out of the monitor and whack me on the back of the head and say in Red Formans voice "DUMB xxxx!" Sorry I'm about 25 min. drive from you. Can't help you there Mark

Why me? why why why... If it works in MDI I see no reason why it would not work in the program. Treat it as you would coolant on/off: M8/M9 Hope it helps Mark

+1 Somebody will have some explaining to do... Mark

On Fanuc 16 control you simply add "Q" to you rigid tap command line M29S____ G84 G98 X Y Z R Q F Regards, Mark

quote: these are screws that get drilled Another thing to consider is to make sure they are not "moving" while beeing drilled. At least a flat starting surface is a must, but would preferred a starting point (c'drill, spot drill...) quote: 3-16PH SS That's prolly 316SS (I haven't seen 3-16 ph), 17-4ph or similar. If that is the case then I'd go no faster then 4300 rpm and 1.0 feed rate for hs-co drill. Mark

quote: I wouldn't use a tangent line to turn comp on. The arc in your case is tangent not the line and the cc is read and adjusted on a first line then makes 90 deg. arc and continues along a geo. Propably when perpendicular lead in was used there wasn't enough "space" for a machine to adjust cc so it did it on one of the next moves. I never use perpendicular lead in with tangent arc selected , but maybe I'm wrong. Regards, Mark

I think using tangent instead of perpendicular lead in-out could make a difference. Leave other settings the same and give it a shot. Hope it works. Couldn't find a purple cir. on black background at first Regards, Mark

quote: but it would've cut a complete circle Breaking cir. might help as mentioned by tommyd . Also what might get screwed up on fadal control could work on another control. If you keep having those issues and must use so much regrinded tool it might be good idea to switch to programing an actual size. Do not trust CC Kind regards, Mark

quote: program for the nominal size and then comp at the control That is what I've been doing for years. Never had any problems, but I don't comp. us much as you do. We almost never regrind flutes, we cut off used up end so it's shorter but dia stays the same. With specials it's different. I program them to actual dia. CC is a tricky thing to deal with. If for ex. you do contour and need two paraller walls to be within say .0005" and your E.M goes into a very sharp corner before hitting one of those walls you will be off tolerance if cc of more than .0005" is used. Wonder if anyone else noticed this problem? Something I learned years ago to pay attention to. Regards, Mark