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Type: Posts; User: Matt_Maguire

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  1. Replies
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    I seriously agree with (it’s litlerob1 now???) on...

    I seriously agree with (it’s litlerob1 now???) on the chuck pressure. After “you tubing” one similar it doesn’t look to be a high duty production machine… Onesie-twosie’s or prototype, it looks...
  2. Nicely worded EPA! You never know what you need...

    Nicely worded EPA! You never know what you need till you get there, & there’s the other thing, WTF do you do if a bridge is 300’ over water??? You can’t carry it to the shop.:bawling:

    We used to...
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    To add to muds' response above, if you get the...

    To add to muds' response above, if you get the recipe right the feeder doesn't have to start & stop. I used to tool steel weld with a constant feed to overlay for needle bearings (ground to size...
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    This^^^^ Not all tool flex, it goes through...

    This^^^^

    Not all tool flex, it goes through the whole machine structure to some extent. A #60 taper likely would break that endmill but will still show a little flexing in the machine tool. A 2"...
  5. I’m a bit intrigued that a toolmaker or old-timey...

    I’m a bit intrigued that a toolmaker or old-timey detailer (draftsman – engineer) hasn’t replied to this topic with “why don’t you just lay this out”? For tool & die makers this is where they really...
  6. ^ Agree, few go to IMTS show and as a receiver of...

    ^ Agree, few go to IMTS show and as a receiver of American Machinist until they went online I wonder how many bother to look at that…

    Vendors might as well wander out to the hen-house & see if...
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    It’s easier to drive a nail with a hammer but if...

    It’s easier to drive a nail with a hammer but if all you have is a crescent wrench you can drive a nail with it if you want to, and the wrench IS adjustable... (YOU adjust to the v-block, after you...
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    Glad you beat it down it Nerdlinger! I...

    Glad you beat it down it Nerdlinger!



    I mean 1144 & other doped free machining steels break easy, if the tool geometry is good there’s no need for chip breakers or molded or foolish looking...
  9. I recall you mentioning that Tyrone (took a good...

    I recall you mentioning that Tyrone (took a good portion of the day?). S’pect the mill driver was just wanting the rest of the day off??? (just kidding)

    By the late 80’s G&L had tightened things...
  10. Tyrone’s got the good news on this one. I’ll...

    Tyrone’s got the good news on this one. I’ll attach some additional info for checking G&L’s.

    266340266341266396266342

    Good luck
    Matt

    On Edit, corrected 3rd attachment
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    1,1,1 trichloroethane used to fix a lotta stuff...

    1,1,1 trichloroethane used to fix a lotta stuff like that… :rolleyes5: We should all be dead by now as much as it was used???

    After way too much patience I did manage to get all the meters cleaned...
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    No, the grey & red 300/300’s did not have square...

    No, the grey & red 300/300’s did not have square wave trickery and AC balance control so there are no power factor correction caps in them. They DO have big ass cooling fans though that run constant...
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    To the OP I’d advise any salesman of your...

    To the OP I’d advise any salesman of your intentions to mig weld 1/4” a lot. A good one wouldn’t sell you less than a 250amp 60% duty cycle machine (that would be the minimum). hawkfan9 in post #2...
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    Sure is a stubborn problem Nerdlinger... Took...

    Sure is a stubborn problem Nerdlinger...

    Took a look at post #11, the (drill) makers advice for dropping sfpm would be correct → if it’s carbon or low alloy speed goes from 80sfpm @ 100bhn all the...
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    On a plain jane twist drill the chisel point can...

    On a plain jane twist drill the chisel point can amount to 30ish% of the total thrust load. Split & crankshaft grind drill points effectively “thin the web” by 50% or so and go easier.

    150 holes...
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    Your setup looks like you are using the table...

    Your setup looks like you are using the table slot with bars clamped either side for your part clamps. Real v-blocks keyed to the table correctly will give a better setup for abusing round things...
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    Never thought about that? Attached below is a...

    Never thought about that? Attached below is a 1/2” stud one that would give about a 6” stud spread, 3/4” sized might work across a b’port table. I do have a forged set with closed ends that look like...
  18. Yes you can pass the power through the rotating...

    Yes you can pass the power through the rotating shaft. I’ve built a number of machines for doing roundabout welds. Pandjiris uses large bronze blocks against the back of their positioner faceplate...
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    Yea, it looks like possible thread splitting...

    Yea, it looks like possible thread splitting there ^.

    If carbide then 1200RPMish and HSS 350RPMish would be the correct recipe & the thread relief helps.

    HINT! Dry run 6-8 or whatever times you...
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    Post a picture of the whole front panel with all...

    Post a picture of the whole front panel with all the controls.

    It looks like the lower knob is wire speed and the upper could be pulse, spot or stitch weld timing. Need more visual for more...
  21. I'd save the dough for the 35 & 55° carbide...

    I'd save the dough for the 35 & 55° carbide unless you really need the profile turning possible with them, they aren't good metal movers on manual machines. The cool center will last MUCH longer.
    ...
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    It’s hot as hell! For structural welds like that...

    It’s hot as hell! For structural welds like that base after welding you’d need to put in a furnace running at 1600°F, let it soak to oven color & shut the furnace down. So it’s an overnight affair.
    ...
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    Driving centers work cool, but with very high...

    Driving centers work cool, but with very high length to diameter shafts the driver dog spring pressure tends to aggravate chatter or help the part to spring away from the tool near the center of the...
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    I would just make sure there were no burrs or...

    I would just make sure there were no burrs or raised dings on the pilot diameter & the clamping face. As mentioned above, these end bells move around easy. Large end bells in a regular engine lathe...
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    Not sure I understand Cal??? If you mean the...

    Not sure I understand Cal??? If you mean the rough end angle on blanks, most are 11-15°.

    Matt
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