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Thread: Letter/Number Punch Holder

  1. #1
    garage nut's Avatar
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    Jul 2017
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    garage nut's Tools

    Letter/Number Punch Holder

    I always wanted one, but the pain of creating a square hole through 40 plus mm stopped me from making one.

    The plastic block gave me an idea. I glued up enough number plates to make up 2/3 of the block, then machines the slots for the punches to fit. Then simply glued another 2 layers of number plate and a square hole with minimal effort. I also milled out a piece below the punches that I could use to line up to a scribed line if I have to do more than 2 characters. I made it to do 2 letters at a time as I mostly stamp 2 letters at a time. Lots of bits making up the suspension bits of a race car. I scribe a line on the side of the holder 0.5mm less than the punches, this gives me a nice reference it I need more than 2 letters and the letters are nice and close.

    Letter/Number Punch Holder-holder-side.jpgLetter/Number Punch Holder-2-time.jpgLetter/Number Punch Holder-cut-out.jpgLetter/Number Punch Holder-stamping.jpg
    Last edited by garage nut; 01-20-2018 at 09:58 AM.

  2. The Following 2 Users Say Thank You to garage nut For This Useful Post:

    Paul Jones (01-24-2018), Seedtick (01-20-2018)

  3. #2
    mklotz mklotz's Avatar
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    mklotz's Tools
    Well done. "Assembling" square holes as you've done here is often more practical than trying to excavate them.

    Another dodge for creating square holes is to mill a slot of the square size in a piece of cylindrical stock then secure the cylinder in a hole drilled to accept it. I used that procedure to make a holder so my boring head could accept a square lathe tool...

    Expanding the utility of the boring head
    Regards, Marv

    Home Shop Freeware

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    Paul Jones (01-24-2018)

  5. #3
    Jon is online now Jon has agreed the Seller's Terms of Service
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    If you double it to 4 letters at a time, you can stamp bitcoin mnemonic seed words into metal for a fireproof backup, kinda like a lowbuck and more permanent CryptoSteel. Although there are 2048 possible seed words, you only need the first four letters to uniquely identify any one word.

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    Paul Jones (01-24-2018)

  7. #4
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    Del Mar, California
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    Thanks for the link to the CryptoSteel website.

    The cases look like a work of art and the way I like to make my tools functional but also beautiful to look at.



  8. #5
    Content Editor DIYer's Avatar
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    Aug 2013
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    Thanks garage nut! We've added your Letter Punch to our Measuring and Marking category,
    as well as to your builder page: garage nut's Homemade Tools. Your receipt:

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