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Type: Posts; User: Matt_Maguire

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  1. Bars like that were pretty common for old timey...

    Bars like that were pretty common for old timey production tooling. Think bore (small depth) and then counter bore or face with one tool. Most often seen on transfer lines stuck in machine tool...
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    The non ball bearing slides aren’t a problem...

    The non ball bearing slides aren’t a problem unless you fill them clear full with drills & toolbits. My near 50 year old top box with the itty-bitty pulls is still good to go.

    Hmmm… You gotta...
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    With chuck turning CCW → tool cutting away from...

    With chuck turning CCW → tool cutting away from chuck → then operator side of the part insert is upside down & from the backside of the part insert is right side up = both make right hand threads.
    ...
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    Clever, I’m an absolute sucker for task lights &...

    Clever, I’m an absolute sucker for task lights & still have the automotive trouble light I bought 1969 (all the rubber on it still good, not OSHA yellow though)… Have since purchased many more types...
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    You really need to get the table top parallel to...

    You really need to get the table top parallel to the ram before fixing the vice (bed or swivel base). If you do work on the vice first → any use of the swivel function of the vice will cause more...
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    That part looks like a shiny something I’d find...

    That part looks like a shiny something I’d find inside or around a fire truck… Those guys have NO sense of humor → but they are pretty parts. Often with NO straight or square sides to anything.
    ...
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    I like them that way even if they don't need to...

    I like them that way even if they don't need to be...

    Matt
  8. Prolly need 12'L x 6'W floor space & I can't...

    Prolly need 12'L x 6'W floor space & I can't remember if it will go under a 7' door. Pretty close though & that one looks more or less pristine. If you plan on align boring with it you need more...
  9. It’s unusual to have any thermal re-solution...

    It’s unusual to have any thermal re-solution under the surface with Oxy/fuel, arc/air or plasma/arc gouging. You DO get an oxide skin that cutting tools don’t like much though… The odd duck would be...
  10. I’m thinking the tool height is off also. NOW,...

    I’m thinking the tool height is off also. NOW, that 3 & 1/2 feet per minute surface speed is prolly lower than just doing it with a hand held die stock… LOL! So 30ish SFPM would get you 300RPM and...
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    For the welder settings on that (assuming .035”...

    For the welder settings on that (assuming .035” S6 hard wire with C25 gas) I’d prolly set 320-340IPM wire @ 22volts, should run around 160-170amps.

    Good luck,
    Matt
    On edit, attached cheatsheet...
  12. If the boss has seen the thread he may be...

    If the boss has seen the thread he may be thinking sdinzy is going to end up in a different place than he is now. He does seem serious. It’d be a hoot if some dental lab folks started looking into...
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    Well darn, I just used the given spanner with my...

    Well darn, I just used the given spanner with my thumb near the collet with the other four wrapped around the handle. With the 100 & larger TG’s I might get a few inches out on the spanner but not...
  14. If your forming 1/4” rod, most used to use one of...

    If your forming 1/4” rod, most used to use one of the various .5-ish carbon flavors sold for press brake die use. These could be used “as machined” to prove the shape & suitability and later easily...
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    One thing is for certain, if you don’t have...

    One thing is for certain, if you don’t have confidence and some proper practice nothing is going to work well for you. I’m not so “skippy” with gage pins either without practicing a bit to get the...
  16. If I understand correctly, the hard turning dry...

    If I understand correctly, the hard turning dry is giving you trouble with the finished size at room temperature... I've machined large things that moved consistently but never anything that is close...
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    24 teeth would be correct for a 6TPI leadscrew...

    24 teeth would be correct for a 6TPI leadscrew tracking 4 inches length, the 32T is correct for an 8TPI screw at that length, I’ve never seen a thread dial track 6” length.

    I did 2 vids years back...
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    I call the three you enumerated first as beam...

    I call the three you enumerated first as beam type. I have too much respect for the tool to say “they look like a stillson or monkey wrench”.

    The leg type may actually be the value if that’s the...
  19. They’re doing 2 things there Larry, the post...

    They’re doing 2 things there Larry, the post machining thermal treatment is for aging and baking out any hydrogen that’s migrated into the steel during the machining (trust me it’s there).

    It’s...
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    Reaching in, up & around things, often done...

    Reaching in, up & around things, often done in-situation with beam type calipers is for most a non starter. My ID mics only go down to 1-1/2 inch so telescoping gages or ID spring calipers are the...
  21. It would be interesting to get some input from...

    It would be interesting to get some input from the ceramic tool maker. In the Binns video linked in another thread the (on edge) ceramic tool recipe was described, feedrate, speed, tool approach...
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    I was gonna say Binns, everyone beat me to it. ...

    I was gonna say Binns, everyone beat me to it.

    Have seen the roll lathe at Keystone wire, was 100hp tri-way, nothing like the Binns in the video though.

    Also prolly there's pics out there of...
  23. My dentist has one & makes crowns & other shit...

    My dentist has one & makes crowns & other shit with it (uses little burrs)... 'Bout the same size but gantry style with proper enclosure & cute little chip auger.



    See above litler, he's gonna...
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    I think he's working on the ends of short parts...

    I think he's working on the ends of short parts clamped in the vice sometimes Bill. That tends to work the poor vice in a way not intended by the maker... Cribbing a vice in an attempt to not bind...
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    Pretty good money in hardfacing & overlay work....

    Pretty good money in hardfacing & overlay work. Below is multipass roundabout buildup before re-machine of the crank pin for a 4000ton Ajax forging press. Material was basically a watered down...
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