Matthew Hajicek™ - Conventus

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About Matthew Hajicek™ - Conventus

  • Rank
    Advanced Member
  • Birthday 06/05/1975


  • Location
    Spring Lake Park, MN

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  1. Matthew Hajicek™ - Conventus

    Guitar neck with High Surface Finish/Hybrid

    I'm sure it's a test piece.
  2. Matthew Hajicek™ - Conventus

    Part modelling and tolerance zones, how would you do this?

    Yeah, like he wants the first quarter inch of a 1.6" long cylinder to be .2070 +0 / -.0005, and the rest to be .2070 +0 / -.0015. I first suggested he draw it all at the mean, but he doesn't want a step at the transition between the zones. Not that you'd really notice the .0005" step.
  3. Matthew Hajicek™ - Conventus

    Vision system with probe?

    How much did that cost?
  4. My engineer coworker is designing a part which includes a long, cylindrical feature. Down the road this will be a lathe part to be jobbed out, but for prototypes I'll be milling it. He wants a single sided tolerance, with the same maximum diameter the full length of the part, but only needs the minimum diameter to be tight for a shot span at one end; it can get looser for the rest. He wants no visible transition between the two zones. I abhor single sided tolerances, and want everything modeled at the midppoint of the tolerance zones. I suggested as a compromise that he should model the whole feature at the diameter of the midpoint of the tighter tolerance zone. Is that how you would want it? Thanks
  5. Matthew Hajicek™ - Conventus

    Tooling for a special (to us) job

    Do the indexable ones have a fine adjust for insert position?
  6. Matthew Hajicek™ - Conventus

    Stock model work planes

    I do this every single time. It's such a habit I thought it wouldn't need mentioning, sorry. It's also necessary if you want to open with a stock aware operation in your second setup.
  7. Matthew Hajicek™ - Conventus

    Stock model work planes

    I use "Top" for the stock models for my first setup. Then if I'm going to move / refixture the part, I'll create a new plane called "Stock flip op 2" or somesuch as here:
  8. Matthew Hajicek™ - Conventus

    5 axis pivot distance

    I recommend the book "Secrets of 5-Axis Machining" by Karlo Apro, in which this is explained.
  9. Matthew Hajicek™ - Conventus

    Machining setup question

    I'm running an i7-6700K 4 core 8 thread overclocked to 4.5GHz, with 64GB RAM and a Quadro M4000. This system is four years old, so it's getting close to time to replace it. A lot of people would have replaced it already, but it's still meeting my needs pretty well and CPU advances have been slow lately (but are picking up again). If you tell us exactly what CPU and video card you have we can tell you how old they are and how much performance boost you would get by updating.
  10. Matthew Hajicek™ - Conventus

    2020 issues

    Thanks, learned something.
  11. Matthew Hajicek™ - Conventus

    Ideas for threading highly abrasive material

    Any chance of getting better material for the next run?
  12. Matthew Hajicek™ - Conventus

    Ideas for threading highly abrasive material

    EDM...? There are carbide taps available, don't know if they're any good: How many holes do you need to do?
  13. Matthew Hajicek™ - Conventus

    Compensation Poll - Take the poll

    Must have gone through cutters like popcorn. Either that or they weren't holding very tight tolerances. I'll wear comp in a couple tenths increments up to a thou or two before replacing a cutter; in many cases that would have been ten new cutters, and all the wasted time that entails.
  14. Matthew Hajicek™ - Conventus

    haas tool length system macro variable #s

  15. Matthew Hajicek™ - Conventus

    Roughing with diffrent size endmills

    What you're looking for is "remachining". It's an option in Contour.

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