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  1. Regarding USSR straightedge: I think the...

    Regarding USSR straightedge:



    I think the Russian straightedges are intended for stuff like scribing straight lines on things or checking flatness by holding them to an edge with light behind...
  2. Thread: Big Vise

    by jmkasunich
    Replies
    7
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    1,873

    The guy at Fireball Tools built a giant vise a...

    The guy at Fireball Tools built a giant vise a little while ago.
    GIANT VISE BUILD IN 10 MINUTES - YouTube
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    When you say "hydraulic turbine", do you mean...

    When you say "hydraulic turbine", do you mean something powered by water from a dam? If so, the most important thing to know is what your water source is. Pelton turbines work well with a modest...
  4. That just reminded me of something else. ...

    That just reminded me of something else. Americans use 9-lead motors that can be configured with two windings in series for 460V or two in parallel for 230V.
    Europeans often use 6-lead motors that...
  5. Not sure what Just s Sparky had in mind when he...

    Not sure what Just s Sparky had in mind when he said two. Maybe thinking of using two single-phase units in open-delta. The listed 3-phase autotransformer should work fine by itself. Overcurrent...
  6. Gotcha - that certainly changes things. Are...

    Gotcha - that certainly changes things.

    Are you talking one or two a year or dozens/hundreds?

    You might be surprised at how affordable semi-custom transformers can be. Try contacting some of...
  7. This one would work. No enclosure, that could be...

    This one would work. No enclosure, that could be a problem or an advantage, depending if you could fit it in the machine somewhere.

    Used Siemens Transformer | HGR Industrial Surplus
  8. Replies
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    6,204

    If you decide to go that way PM me. I can look...

    If you decide to go that way PM me. I can look at mine and tell you things like the belt type I used (I think it was XL, but not sure), the number of teeth, the OD I had to turn it to before cutting...
  9. Replies
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    6,204

    My Van Norman #12 had exactly the same problem. ...

    My Van Norman #12 had exactly the same problem. And like you I was astonished at the prices for large timing belt pulleys.

    There is enough cast iron in the rim of the original sprocket that I was...
  10. Replies
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    Does the machine have a variable speed spindle...

    Does the machine have a variable speed spindle motor? (Either AC motor and VFD or DC motor and SCR drive.)
    If so, you don't have to worry so much about the inrush from across-the-line starting the...
  11. Replies
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    I'd suggest a boat trailer winch or similar...

    I'd suggest a boat trailer winch or similar attached to the wall at the top of the slope. And a pin or latch to hold the steering wheels of your pallet jack straight. Make it convenient to use and...
  12. You could save a little bit of time by doing them...

    You could save a little bit of time by doing them in pairs. Mill both ends of the bar square, cut off both ends to make two blanks, go back and mill both ends square again, repeat...
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    Another happy customer! Thanks Dixon, couldn't...

    Another happy customer! Thanks Dixon, couldn't be happier!

    John
  14. Pretty sure those are well under 1000 lbs. ...

    Pretty sure those are well under 1000 lbs. Measure length, width and thickness and multiply by roughly 0.1 lbs per cubic inch.
    Hard to guess from the pics but if that is 3 ft x 8 ft x 1 inch you...
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    I cringed at that. Even if not being used, I...

    I cringed at that. Even if not being used, I didn't see anything keeping the tanks from rolling off that bench.
  16. Replies
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    I suspect you could use the 18x18 to scrape in a...

    I suspect you could use the 18x18 to scrape in a 24x24 if you work carefully. A 48x30 is going to be a lot harder. The small plate can be used to check local flatness (holes and humps) but you'll...
  17. They don't look like fan motors to me. Fan...

    They don't look like fan motors to me. Fan motors would contain a small PC board. And the wires would almost certainly be color coded: red = +, black = -, and some other color for the tach signal....
  18. Thread: mikrokator

    by jmkasunich
    Replies
    2
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    1,030

    It's a fine adjust. Usually has a range of +/-...

    It's a fine adjust. Usually has a range of +/- maybe 10 minor divisions or so. Once you get the needle somewhere in the middle half of the scale you should be able to center it with that knob. It...
  19. Thread titles are supposed to be descriptive, so...

    Thread titles are supposed to be descriptive, so that someone skimming the titles can decide which threads they want to read. "The struggle is real" could be about anything from lathe rebuilding to...
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    How many pieces needed?

    How many pieces needed?
  21. Replies
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    I don't know about the hikator or millimess, but...

    I don't know about the hikator or millimess, but the mikrokator should have zero backlash and zero hysteresis. The mechanism is based on flexing metal and has no rubbing or rolling parts to create...
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    Agree with the link-belt recommendation. In...

    Agree with the link-belt recommendation. In addition to the reduced hassle and risk of screwing up, the link-belts tend to be more uniform and run smoother than regular V-belts (or flat-belts if...
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    I wouldn't go that far. Three-phase 240V motors...

    I wouldn't go that far. Three-phase 240V motors will run on 208V, but they will draw a bit more current and run hotter. If the nameplate says 230/208, then the motor designer built in enough extra...
  24. Depends on how it was put in there. I had one...

    Depends on how it was put in there. I had one once that was apparently installed with red locktite and a sledge hammer. We tried the "drill the chuck body and punch it out" trick. Also the...
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    Rough position indicator, then fine adjust with...

    Rough position indicator, then fine adjust with screw under the stage that holds the part.

    (you're right, this is the wrong thread for discussing mikrokators, this will be my last post on the...
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