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How to Make Holes in Things

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mhrackin
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Re: Circle cutter cont'd
mhrackin   10/15/2014 2:11:14 PM
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@max: "maybe I can find one somewhere on our path..." Are you planning on driving a moderate-size truck (with liftgate, as these are quite heavy) to Dayton? I had a friend many years ago who had a miniaturized version of this he used for his model railroad hobby. Now that he's retired, he has a basement workshop that puts mine to shame: it's a fully-equipped wood AND metal-working shop with pro-quality and size machine tools.

Max The Magnificent
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Re: Circle cutter cont'd
Max The Magnificent   10/15/2014 1:56:53 PM
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@mhrackin: Harbor Freight has an interesting (and very inexpensive) variation...

Jason from Instrument Meter Specialities (see my The Moon is a Harsh Mistress blog) told me about something called a Shopsmith Mark V (now they do a Mark 7) -- I looked them up and it does seem to be a very useful multipurpose tool -- you can pick them up relatively cheap on eBay, but they are really heavy so you typically have to pick thm up yourself ... maybe I can find one somewhere on our path on our forthcoming Road Trip to Hamvention

Duane Benson
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Re: One more way tio make holes!
Duane Benson   10/15/2014 1:33:40 PM
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"I just read in the latest CC newsletter that Steve has bought back the magazine from Elektor."

That's interesting. I'll have to take a look at the magazine again. I used to read his columns in Byte Magazine every month.

Duane Benson
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Re: Encore Article?
Duane Benson   10/15/2014 1:31:22 PM
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Circle cutter - That's what I was thinking of. And, I had forgotten that you really can't use on without a drill press.

mhrackin
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CEO
Circle cutter cont'd
mhrackin   10/15/2014 1:23:31 PM
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Harbor Freight has an interesting (and very inexpensive) variation. It has TWO cutting bars which would help keep it centered and perpendicular (but would have to be maually set to precisely the same radius!). Go to their web site and search for "Carbide Tip Adjustable Circle Cutter "

mhrackin
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CEO
Re: Encore Article?
mhrackin   10/15/2014 12:55:09 PM
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That circle-cutting tool is called a "circle cutter" in the trade. I've had one for years, but unless you have a very good drill press, you can't cut an accurate and neat large (meter-sized??) hole with one. They really suck in a hand drill. Hole saws work much better unless you need to cut a smooth round hole through a very thick material. They do make extra-deep hole saws for that, but they are hard to find and rather expensive.

Duane Benson
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Re: Encore Article?
Duane Benson   10/14/2014 6:22:06 PM
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Those big round saws that are at the top of page 3 - I've ised the cut out from those as little wheels.

There's another tool with the same purpose. It's got a standard drill in the center and a bar that goes off perpendicular. That bar has a cutting blade that slides to adjust so you can make big holes of just about any size with it.

mhrackin
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CEO
Re: One more way tio make holes!
mhrackin   10/14/2014 10:13:57 AM
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Don't know how I missed that! AND it was posted appropriately on July 4.....

antedeluvian
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Re: One more way tio make holes!
antedeluvian   10/13/2014 8:13:26 PM
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Ian

This reminds me of Steve Ciarcia who ran the Circuit Cellar magazine.

I remember reading that imn one of his editorials, I think.

I just read in the latest CC newsletter that Steve has bought back the magazine from Elektor.

Ian Johns
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Rookie
Re: One more way tio make holes!
Ian Johns   10/13/2014 7:58:22 PM
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This reminds me of Steve Ciarcia who ran the Circuit Cellar magazine. He used to (& probably still does) erase the contents of old hard drives by putting them on a stump & using them for target practice!

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