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Type: Posts; User: 316head

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  1. Replies
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    3,395

    Can I have your 5-axis machine?

    Can I have your 5-axis machine?
  2. Replies
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    888

    For Mastercam I have written probing macros to be...

    For Mastercam I have written probing macros to be used with custom drilling cycles. It doesn't simulate the movements properly, but otherwise it works. To check tool condition, a misc value is used....
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    R390 is a great insert, no doubt. It is...

    R390 is a great insert, no doubt. It is practically used everywhere in this country. We use it for shouldering, facing and helical interpolation. For HI it has it place, but for shouldering and...
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    Hello. Here's the contender I intent to...

    Hello.

    Here's the contender I intent to replace Sandvik R390 with. Nothing wrong with R390 except that cost per edge is too high (operators consume them like candies). It is a bit thicker than...
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    1,016

    Trigon milling inserts

    Trigon inserts are pretty common in turning but not so much in milling. Why? I find them pretty lucrative, having six cutting edges, strong geometry and some manufacturers even offer ramping ability....
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    1,087

    If it takes too long, remember: never install my...

    If it takes too long, remember: never install my mcam -folder on corporate mapped network folder.
  7. Thread: Special tools

    by 316head
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    23
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    2,039

    I'd never order form tooling made of HSS

    I'd never order form tooling made of HSS
  8. Thread: Max regrinds

    by 316head
    Replies
    17
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    1,785

    We regrind almost everything. Endmills. Drills...

    We regrind almost everything. Endmills. Drills (both HSS and HM. HSS has to be big and long=expensive). Exchangeable drill tips. Reamer heads. You name it. That is, if the rework price is 1/3 of the...
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    1,341

    I program two HMC's with a 18i-mB control and...

    I program two HMC's with a 18i-mB control and they have massive lookahead buffer as it's easy to get hypnotized by looking at the running CAM-generated code, but it SUCKS at following a path. AICC or...
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    1,266

    You sir are correct. There seems to be a...

    You sir are correct. There seems to be a quadratic relation
  11. Replies
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    1,266

    "It's not quite as simple as that. The surface...

    "It's not quite as simple as that.

    The surface will no longer be conical, so cannot be defined as an angle, although unless the centre deviation is extreme the error will be extremely small. "
    ...
  12. Replies
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    Thanks to everybody, I actually stopped thinking...

    Thanks to everybody, I actually stopped thinking and tried calculating it out.

    If Y is 1mm out of center, I get the new angle at 119.46 degrees. So my own answer is, angle gets smaller. Anyone...
  13. Replies
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    1,266

    Please help me think this out

    Attached is a simplified cross section of a simple turned workpiece. It is turned using Y-axis lathe. Essential dimension here is the angle 120 degrees.

    The question is: Y is out of center. Does...
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    Thanks. Here it's called "mittalastu" :rolleyes5:

    Thanks. Here it's called "mittalastu" :rolleyes5:
  15. Replies
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    1,110

    Looking for translation

    In lathe work sometimes you need to take an extra cut, measure and adjust X offset, and then do finish pass. What is the proper term for this extra pass? Tried googling but couldn't find any relevant...
  16. Thread: Max regrinds

    by 316head
    Replies
    17
    Views
    1,785

    Max regrinds

    I keep hearing from tooling reps that carbide drill should not be reground more than three times. Are there other reasons than drill diameter getting a bit smaller with every regrind?
  17. Beta-testing machine control software on users...

    Beta-testing machine control software on users does not sound like a good idea to me.
  18. Sandvik replacing all R840 with 860.1 X1BM grade?

    Sandvik R840 is an excellent all-around drill, but now it seems they are replacing them all with 860.1. With this comes increase in price (R840 are not cheap to begin with). Has anyone seen...
  19. High speed machining without Contour Control

    The machine is a HMC with 12000rpm BT50 spindle but nobody thought it would be a good idea to purchase AICC, so how fast can I expect to feed before problems start to arise? Control is Fanuc 16MB. I...
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    Only 25%? Ours went up by 60%. Ok, we bought...

    Only 25%? Ours went up by 60%. Ok, we bought another Mill3D license last year but still I'd like to hear some real arguments. 2020 is definitely not that great and the core problems still persist.
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    Sorry to start another thread, time to learn to...

    Sorry to start another thread, time to learn to use the search! :)



    I have thought of this. However I have never heard of BT50 (the taper in our machines) pull-stud breakage even with a hole in...
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    1,785

    Thru-tool coolant always better than flood?

    I've been replacing retention knobs for face and shoulder mills to allow coolant to go through spindle. Flood coolant is currently being used in every facing and shoulder milling operation on our...
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    Easiest would be using C-axis substitution +...

    Easiest would be using C-axis substitution + radial live rotary tool with ball endmills. You could program it using wireframe geometry - no solids needed.

    OR

    Turn it using controlled threading...
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    1,192

    Thanks for the tip!

    Thanks for the tip!
  25. Replies
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    1,192

    Woodruff cutters (we call it T-slot here in...

    Woodruff cutters (we call it T-slot here in Finland) are in daily use. There is no reason to replace them. But ball endmills are real productivity killers, especially when it comes to hard milling...
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