aligning two drill points
#11
  
What is a two-armed tool called that marks a point on an upper board to line up with a point that has been drilled on a board underneath or that cannot be seen?

Thanks, Dalton
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#12
  Re: aligning two drill points by Flat Spots (What is a two-armed ...)
Do you mean a "transfer punch"?
S.E. Alabama, formerly from Wisconsin.
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#13
  Re: aligning two drill points by Flat Spots (What is a two-armed ...)
Could be called "dowel centers"
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#14
  Re: aligning two drill points by Flat Spots (What is a two-armed ...)
Since I'm not exactly sure I've got your description correct, would an outside caliper do it? I envision you want to mark the same point on the top and the bottom of a board.

   
I started with absolutely nothing. Now, thanks to years of hard work, careful planning, and perseverance, I find I still have most of it left.
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#15
  Re: aligning two drill points by Flat Spots (What is a two-armed ...)
I recently purchased this transfer punch set.  It finds the center point for a drilled hole.

https://www.amazon.com/gp/product/B01ADB...UTF8&psc=1


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#16
  Re: aligning two drill points by Flat Spots (What is a two-armed ...)
Highland Woodworking has a tool called an AccuScribe Pro ?

Or, maybe this ?
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#17
  Re: aligning two drill points by Flat Spots (What is a two-armed ...)
https://www.rockler.com/dowel-centers-individual-sizes
I posted earlier,  but bid not have a link.  The link above is to dowel centers
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#18
  Re: RE: aligning two drill points by Sqpegs (https://www.rockler....)
(03-16-2021, 10:29 AM)Sqpegs Wrote: https://www.rockler.com/dowel-centers-individual-sizes
I posted earlier,  but bid not have a link.  The link above is to dowel centers
Dowel centers work basically the same as the punches I referenced in post #12.  They are generally only available in common dowel sizes, and are very inexpensive.

I use the center finding punches this way:

I make a template from masonite, marking all the locations for cuts, holes, etc. with a prick punch.  I then drill out those marked positions with a 1/4" or 3/8" drill bit.

I then place the template over the plywood and using the appropriate size punch I mark the centers for all the data points.

At that point it is just "connect the dots" or drill out the holes.
No animals were injured or killed in the production of this post.
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#19
  Re: aligning two drill points by Flat Spots (What is a two-armed ...)
From what the OP said, I think he's asking about the jigs used to make sure a hole intersects with another deep hole crosswise, as for locating a nut for a bed bolt. While I don't have a name, here's a link to such a jig: https://www.finewoodworking.com/2012/11/...-alignment
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#20
  Re: aligning two drill points by Flat Spots (What is a two-armed ...)
I think that Flat Spots has abandoned us.
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