Letter/Number Punch Holder

[garage nut]

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.

[mklotz]

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...

http://www.homemadetools.net/forum/e...ing-head-27452

[Jon]

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.

[Paul Jones]

Jon,

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.

Regards,

Paul

[DIYer]

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:

Letter Punch by garage nut

tags: punch, holder