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Type: Posts; User: sfriedberg

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  1. Replies
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    545

    LOL! I don't know yet. That's one of the ones I...

    LOL! I don't know yet. That's one of the ones I have on order.
  2. Replies
    16
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    545

    I like using a hard brayer, but the last...

    I like using a hard brayer, but the last Speedball I bought was atrocious. The axle pins were both way eccentric (1/8") and not in the same plane, so as you rolled the thing the handle went through...
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    451

    LPS-1 is an alternative to Starret M1. LPS-3...

    LPS-1 is an alternative to Starret M1.

    LPS-3 leaves a sturdy waxy coating. Not hard to clean off (like cosmoline) and easier to apply than anhydrous lanolin.
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    3,664

    In my opinion, the condition of the workhead will...

    In my opinion, the condition of the workhead will matter much more than any over-the-decades model changes. The one I think of as standard has NMTB50 on one face and MT5 on the other. If it doesn't...
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    432

    If those aren't what you are looking for, I can...

    If those aren't what you are looking for, I can probably dig up some links to screwdriver-styled preset torque wrenches.
  6. The operator's manual for the Cincinnati #2 tool...

    The operator's manual for the Cincinnati #2 tool and cutter grinder is widely available on the web (and also physical copies). Almost all of it (and it's lengthy) will apply directly to operating...
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    576

    I've written this a couple of times in the forum...

    I've written this a couple of times in the forum before, but since it's directly applicable to OP's question, I'll do it again.

    My first grinder was a Cincinnati #2 tool and cutter grinder. I...
  8. Thread: UNS threads

    by sfriedberg
    Replies
    35
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    1,466

    Unless your customer's prints say otherwise, I...

    Unless your customer's prints say otherwise, I would use tooling for the UN thread profile sized for 11TPI or 14TPI. The only thing special is that the size/pitch combination isn't standard. Thread...
  9. Pre-VFDs, the solution would have been a simple...

    Pre-VFDs, the solution would have been a simple gearbox. If the VFD solution is working for you (i.e., not running into torque limitations), that's almost certainly the cheapest current solution.
    ...
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    Yeah, you will not find it in any standard. ...

    Yeah, you will not find it in any standard. That's sort of the point. It's a bastard thread that kinda/sorta fits, but it's probably out of spec (or at best right on the limit) for all standards.
  11. LOL. The only insert fatter than a W trigon...

    LOL. The only insert fatter than a W trigon would be an R round. No wonder you are having access problems.

    1) Try a narrow diamond like a V insert. You can get holders that will put the...
  12. Look, you are not going to get satisfactory 40TPI...

    Look, you are not going to get satisfactory 40TPI threads from a 12TPI insert! The root radius of the 12TPI insert is practically 100% the size of the full 40TPI space. Imagine you had a perfectly...
  13. When I was equipping my shop, I had machines sent...

    When I was equipping my shop, I had machines sent LTL to Wilhelm Trucking and Rigging in Portland. Wilhelm then brought the machines out to my shop and put them in place. I was very happy with...
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    Air quench is much slower than either oil or...

    Air quench is much slower than either oil or water. Air hardening steels tend to very low distortion and comprehensively through hardening. It's very convenient to leave the tools enclosed in a...
  15. Thread: 50 taper

    by sfriedberg
    Replies
    4
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    394

    In addition to what John just wrote, you may find...

    In addition to what John just wrote, you may find later derivatives that use the same taper dimensions but configured for automatic tool changers. The CAT-50 and BT-50 variations are missing the...
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    4,187

    Surface roughness is going to be controlled by...

    Surface roughness is going to be controlled by the combination of the insert corner radius, wiper flat (if any) and your feed per insert. If the insert has a wiper flat (e.g., PDTR) and your feed...
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    3,177

    LOL, I wish there were heavier rated ladders. I...

    LOL, I wish there were heavier rated ladders. I max out a Type I 250lb rating before I put my toolbelt on. I buy Type IA ladders (300lb) for the house, and would seriously consider Type IAA (375)...
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    Bu-bye, truckeic! If you'd rather go elsewhere...

    Bu-bye, truckeic! If you'd rather go elsewhere than live by the local rules, the local rulers would be happy to see you go.
  19. Several people have mentioned decarburization,...

    Several people have mentioned decarburization, which used to be an issue with tool steels straight from the mill back in the day. Sufficiently old books on toolmaking will recommend taking as much...
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    And a highly useful mod, I would add. Typically...

    And a highly useful mod, I would add. Typically if you mount a faceplate (with central hole) or dog driver plate on the spindle nose, and then stick a typical dead center in the lathe spindle, the...
  21. They would be of greater value with a...

    They would be of greater value with a tool-and-cutter grinder, rather than a surface grinder.

    The first item would probably be used to resharpen either arbor-mounted milling cutters or shanked...
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    In the OP's situation, I would be wearing my...

    In the OP's situation, I would be wearing my regular light, inexpensive safety glasses with diopter "cheaters", and then a full-face shield over that to provide the first line of defense against...
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    I could not do that in my shop. I don't have...

    I could not do that in my shop. I don't have eight propane tanks all the same height. :-)
  24. I have a 24x27 shop with 12+ ceilings, insulated...

    I have a 24x27 shop with 12+ ceilings, insulated on all six faces, and it stays 68F all year round with a Mitsubishi Mr.Slim outside unit (either 12K or 18K BTU, don't recall and not at shop to look...
  25. Well, chalk that up to a difference in our...

    Well, chalk that up to a difference in our personalities, digger. You tell them to fuck off. I give them info and then tell them to shove off. 'Cause I'm just such a helpful SOB.
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