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Thread: Pretty scrap

  1. #21
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    I tossed the rest of the part, but I did save the chips that came off. G50's got off on an old 5T Fanuc. CNMG632 tried to rapid through a big chunk of 1045 about 7" from centerline in low gear. Chips are about .100-.150" thick.
    Attached Thumbnails Attached Thumbnails mazak-chips.jpg  

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    HAHAHA 100% me

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    Quote Originally Posted by kenton View Post
    A reminder from my early years in machining about the importance of setting the Z offset.

    Attachment 316500
    Nice stir-welding!

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    I damn sure would have!

    Don't pull that trick on another machinist.



    Quote Originally Posted by Booze Daily View Post
    Actually, no one has ever asked.

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    That reminds me of a cotter pin that I have around somewhere. I needed several dozen of them for a project at work. It is about 10" or 12"; larger than a railroad spike. Great paperweight or door stop.



    Quote Originally Posted by Garwood View Post
    I tossed the rest of the part, but I did save the chips that came off. G50's got off on an old 5T Fanuc. CNMG632 tried to rapid through a big chunk of 1045 about 7" from centerline in low gear. Chips are about .100-.150" thick.

    Attached Thumbnails

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    Quote Originally Posted by EPAIII View Post
    I damn sure would have!

    Don't pull that trick on another machinist.
    Most of those parts were out of tolerance. Not anything visual that you could see.

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    When I became an apprentice in the late 70's an old timer told me that the only people who never make scrap is the ones that never do anything.

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    I scrapped out a $14000 part when working for a company during college. Understandably I was a bit concerned. Older guy noticed I was upset and came by and told me "The only way you won't scrap anything around here is to do nothing, and that'll get your ass fired".

    In the end engineering redesigned the part to better protect the the fragile, expensive component and I built the redesigned assembly without issue.

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    Quote Originally Posted by Booze Daily View Post
    These are all scrap. Is there a particular one you want to know about?

    Attachment 315573
    Top shelf mostly surgical instruments? 2/5 of the way in look sorta like IM nail reamers, or taps, I can't quite tell.

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    I explained to an Air Cadet once, that he reason they were being shown the failures, was that the 'good' parts had all been put on airplanes!

    I also explained that, sometimes, you will fail. It's not a sin to fail, it's a sin to not learn from your mistakes!

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    Quote Originally Posted by snowman View Post
    Top shelf mostly surgical instruments? 2/5 of the way in look sorta like IM nail reamers, or taps, I can't quite tell.
    Good eye. Yes surgical instruments. For spine surgery.
    On the long skinny stuff my customer does the swiss turning, I just mill the details.
    The more conventional type parts I make complete.

    z-002.jpg

    z-001.jpg

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    Show off.

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    Quote Originally Posted by aarongough View Post

    Finally, a Gough Custom knife I can afford!

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    Angry here's my latest

    Was making a ER collet chuck to directly thread onto my SB. Everything was going beautiful, dead on hitting my numbers. Damn near Class 3 fit going onto the spindle, etc. Had the taper all bored and everything. Went to thread it M40x1.5

    No prob, I have all the metric gears. Threaded it and the nut doesn't go.

    SHIT WITH CORN IN IT ..... I changed all the end gears EXCEPT I didn't put the 127/100. So whatever those threads are, they aren't metric. Just looks real close. 4 hours down the drain.

    1.jpg

    Eventually I started over with a new piece of stock and got it right. What I want to know is, does anyone make square and hex ER collet blocks that will thread onto a SB spindle?

    SIGH.... I guess it doesn't mean anything since this is my home shop and not my work shop. I would rather make my mistakes at home instead of at work. Note to self: 2 AM is not the time to start a metric threading job....

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  20. #36
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    Quote Originally Posted by pavt View Post
    What I want to know is, does anyone make square and hex ER collet blocks that will thread onto a SB spindle?
    I assume you have a tooling rep that can get you Rego-Fix products, right?

    Ask them to ask Rego about a custom threaded holder.

    I think you'll be surprised. I asked for some custom lengths with custom markings on them...

    Same price as off the shelf. Which isn't cheap, to be sure, but worth it.


    Edit: If you don't have a contact, I can give you the email for my guy, he's the Southeast Territory Sales Manager, I'm sure he can get you in touch with whoever covers your area.

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