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  1. russmill

    Looking for info to get started with injection molding

    Hey I know him too! Great guy, really knows his business
  2. russmill

    Renishaw and the cutter diameter conundrum: the offsets holy war

    There once was a girl from Salt Lake City, sorry can't continue the limerick on this site :love:
  3. russmill

    Renishaw and the cutter diameter conundrum: the offsets holy war

    I started out using finger-cam (g-code, not conversational) and control comp. Made life simple for 2d, you can program the finished actual geometry and use any size tool available, just change speeds and feeds. Then after getting into real job shops with real CAM I realized they used wear...
  4. russmill

    Fanuc Dynamic work offset for 3+1 work on a horizontal

    At my last job I setup the post and loved me some G54.4 for a pair of Mazak Variaxis I-700's. These were on a palletech system so I used G10 to load pallet offsets, G54 was (A0. C0.) probed work offset and then invoked an M110 macro I created to calculate the difference from C.O.R. to G54 and...
  5. russmill

    Pre NGC Haas TL-2 G54 position annoyance

    That's essentially my workaround, but it's usually more like X4. Z1., then preset the origin. Thanks for the reply, makes me stop wondering if it's the software version
  6. russmill

    Pre NGC Haas TL-2 G54 position annoyance

    I have a 2012 TL-2 which has been a fantastic lathe for my purpose, but one thing has always bothered the hell out of me and I wonder if other Haas lathes of different eras behave the same. When running a program, the G54 position is correctly showing the tool-tip diameter and Z position...
  7. russmill

    Irregular Witness marks

    What machine? Most Haas I have ran that swirlie is present on any and all floor surfaces, but at toolpath transitions. That looks like a straight feed move, could be a lot of things. I like Haas and am not trying to start the inevitable bash, but in a shop with 6 Japanese machines and 25...
  8. russmill

    ME Threadpal is amazing!

    I've had ME threadpal on a laptop that hasn't seen the internet for 10 years. I'll be devastated when that machine stops booting :(
  9. russmill

    Looking for some spin fixture ideas for WEDM

    I certainly can't add anything to what Implemex laid out, but I do a fair amount of spin burning and can only emphasize that it is truly difficult to say the least, even with Herman Schmidt and Carl Hirschman rotaries. But once it's dialed results are amazing. It is funny how little info there...
  10. russmill

    Haas) Super Mini Mill #2) Skip warm up cycle?

    As Donkey stated, just type 5,000 in jog mode, then hit spinde FWD key. Otherwise you would type S5000 in MDI, start, then back to jog and spindle FWD
  11. russmill

    Live/Rotating centres

    I used to use riten and royal live centers mounted in the lower turret on mill-turns. They had a heavy-ass internal spring with color bands (green yellow red) to indicate proper thrust. They were expensive and worked very well, I can't imagine trying to use a sub-standard center in a CNC...
  12. russmill

    new to 5 axis question

    Gibbs has different 5 axis posts, a C-style post will output every WCS as a work offset, so G54 for B0.C0., G55 for B-90.C0. etc. A D-style post will only output one work offset and it is the type you would use TCP and DWO with. To use D-style posts without TCP or DWO options Gibbs has a...
  13. russmill

    What's everyone's preferred method of verifying 5 axis kinematic rotation point?

    You are right, there are only so many things that can be accounted for, I guess I was referring to how and when different controls apply any of them. My experience with high-end 5 axis was mostly Mazak variaxis and integrex, and I found it to be overly complicated. There are so many sets of...
  14. russmill

    What's everyone's preferred method of verifying 5 axis kinematic rotation point?

    All I'm really trying to say is rule out leveling, squareness, thermals, angular positioning, probe calibration, lunar cycle, et al before calibrating with probe and sphere. Then make on the fly adjustments as needed :willy_nilly:
  15. russmill

    What's everyone's preferred method of verifying 5 axis kinematic rotation point?

    The only thing I see wrong with setting parameters with probing spheres vs test cuts is the assumption that XYZ and A(B)C are square, true, perfect, etc. Sure the test cuts will correct the exact circumstantial factors, but everything in between is questionable. The math will never lie, and...
  16. russmill

    What's everyone's preferred method of verifying 5 axis kinematic rotation point?

    I would never talk anyone out of 5 axis haha. It's a fun challenge and often times it's easier than 3 axis because you have so much access to your work. Feel free to reach out when you get to that point
  17. russmill

    What's everyone's preferred method of verifying 5 axis kinematic rotation point?

    It's using dynamic offsets (G54.4) and TCP (G43.4) on a Mazak. This way wherever the mag base may be, I can jog the sphere to where all 3 indicators are zero, set the work offset, and hit go. The code itself is dead simple with G43.4 on, just feed C and A angles and the other axes follow...
  18. russmill

    What's everyone's preferred method of verifying 5 axis kinematic rotation point?

    And after calibrating with probe or calibrating with test cuts it's nice to do a full volumetric check like in this video. I made an elaborate indicator holder and a simple TCP program to see double check that all the parameters are working together correctly. Same concept for B axis mill-turns
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