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  1. Replies
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    I had two Kurt 3600s, nice vise as far as they...

    I had two Kurt 3600s, nice vise as far as they go. In 2013, bought two Orange vises and never looked back. I still have a 3600, great vise for second ops, sold the other one. I've posted this before,...
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    I didn't think life itself was possible without...

    I didn't think life itself was possible without probing.

    A Renishaw will repeat much better than a tenth - in my machine the scatter from repeat probes is around 30 millionths. However the...
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    OK, I've tried this and the results were...

    OK, I've tried this and the results were extremely disappointing. First I tried heating a 5 gallon can with a 5 gallon can heater. It got to a pretty decent boil. The boiling itself keeps the oil cap...
  4. It could be the material too - what are you...

    It could be the material too - what are you using? 6061 covers a lot of ground, from crappy coke cans with 6061 stamped on it from China or Russia, which actually might be just about anything, to...
  5. I won't (necessarily) claim to be smarter, but...

    I won't (necessarily) claim to be smarter, but the terms are steeped in history, when tangential feed rates were either zero or very small and could be ignored. It only became relevant recently when...
  6. Chip load and tool life may vary with the number...

    Chip load and tool life may vary with the number of flutes. The speed at which any of the flutes passes the material does not change with the number of flutes, only the cutting diameter. When I said...
  7. Yes, although the number flutes doesn't matter,...

    Yes, although the number flutes doesn't matter, only the diameter. This is true even of grinding, with no flutes. And the larger the cutter, the higher the rpm, or the lower the feed, the less...
  8. This does not support your position in the...

    This does not support your position in the slightest. ALL motion is relative. NO motion is absolute. Even when your tool is stopped (relative to the table), it is traveling at over a 88,000 ft/min...
  9. D x Pi x rpm = IPM isn't it? So rpm = IPM / (D x...

    D x Pi x rpm = IPM isn't it? So rpm = IPM / (D x Pi). For climbing cuts.

    It isn't inconsequential, depending on the circumstance. In the 1/4 endmill feeding at 800 IPM case, turning at 1000 rpm...
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    They list their prices on their website - what a...

    They list their prices on their website - what a concept!!! It is $120K for the system. I'm not sure they or MarkForged are actually shipping any of these yet.
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    The problem with MarkForged is the hype. Their...

    The problem with MarkForged is the hype. Their printer is 100K, but then you need the cleaner and sintering oven, call it 150K. I've tried to get anybody independent of the company to relate some...
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    If you are cutting at 5 ipr (inches per...

    If you are cutting at 5 ipr (inches per revolution) with a 1mm tool, the only surprise is that it took 3" to break.
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    Ahh, thought I had looked there but I guess not....

    Ahh, thought I had looked there but I guess not. It would be out of character for HH to remove anything, since they freely distribute documentation for everything going back to vacuum tubes. If only...
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    I will try that. One of the things I really like...

    I will try that. One of the things I really like about having the printer on my desk is instant gratification, and quick iteration - not sure a service bureau can do that.
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    The MF material is a carbon laced nylon, they...

    The MF material is a carbon laced nylon, they claim stiffness and strength roughly the same as aluminum. There are two versions, one a plastic filled with short carbon fibers, another where...
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    Those are the kind of things that MarkForged...

    Those are the kind of things that MarkForged seems to leave out of their slick marketing shtick. They have been accused of showing up on forums as a newly minted poster expounding the virtues - I...
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    The price of memory is tracked by several...

    The price of memory is tracked by several industry analysts. In 2010, around $12 per Gigabyte (not megabyte). In 2015, $4 per gigabyte. Now back in 1980, about $6M per gigabyte.

    But Fanuc is...
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    When you get some quotes, let us know. One thing...

    When you get some quotes, let us know. One thing that is well hidden is the consumables costs. There seems to be reprocessing costs on the unused powder in many of them as well.
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    MarkForged is pushing this application Big Time...

    MarkForged is pushing this application Big Time with a huge spam campaign. I wish there were more public examples of their printed product - it's pretty hard to find an actual user who will relate...
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    Not sure where you are shopping, but I've had no...

    Not sure where you are shopping, but I've had no trouble at all getting parts and service for 25 year old controls. Just got one repaired built in 1984.
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    Heidenhain can also supply a control for just...

    Heidenhain can also supply a control for just about anything, it is reliable, serviceable, they do not charge extra for every little transistor and feature, and the UI is many decades ahead of Fanuc....
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    Wow, looks like they took the documentation for...

    Wow, looks like they took the documentation for some of the really old controls off of the HH website.

    I have the technical service manual for the 360 and the operators manual for the 370 (which...
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    Heidenhains all the way back to at least the 151...

    Heidenhains all the way back to at least the 151 have the proper signals to operate a tool setting and a work measuring probe, and the routines are built into the control (no need for licenses,...
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    Unless something in the machine is running...

    Unless something in the machine is running something off of one phase to ground (nominally 110V), it can't tell the difference between the two flavors of 3 phase. Well, other than one will be 220 -...
  25. And still be higher quality that the same thing...

    And still be higher quality that the same thing made in many far east or eastern European locations :).

    An update on the OP: I found some SKF bearings made in Italy and used those. They were...
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