Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 11   >   >>
mhrackin
User Rank
Author
Re: Circle cutter cont'd
mhrackin   10/15/2014 2:11:14 PM
NO RATINGS
@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
User Rank
Author
Re: Circle cutter cont'd
Max The Magnificent   10/15/2014 1:56:53 PM
NO RATINGS
@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
User Rank
Author
Re: One more way tio make holes!
Duane Benson   10/15/2014 1:33:40 PM
NO RATINGS
"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
User Rank
Author
Re: Encore Article?
Duane Benson   10/15/2014 1:31:22 PM
NO RATINGS
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
User Rank
Author
Circle cutter cont'd
mhrackin   10/15/2014 1:23:31 PM
NO RATINGS
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
User Rank
Author
Re: Encore Article?
mhrackin   10/15/2014 12:55:09 PM
NO RATINGS
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
User Rank
Author
Re: Encore Article?
Duane Benson   10/14/2014 6:22:06 PM
NO RATINGS
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
User Rank
Author
Re: One more way tio make holes!
mhrackin   10/14/2014 10:13:57 AM
NO RATINGS
Don't know how I missed that! AND it was posted appropriately on July 4.....

antedeluvian
User Rank
Author
Re: One more way tio make holes!
antedeluvian   10/13/2014 8:13:26 PM
NO RATINGS
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
User Rank
Author
Re: One more way tio make holes!
Ian Johns   10/13/2014 7:58:22 PM
NO RATINGS
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!

<<   <   Page 2 / 11   >   >>


Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Radio
LATEST ARCHIVED BROADCAST

What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.

Brought to you by:

Like Us on Facebook
Special Video Section
The LTC2380-24 is a versatile 24-bit SAR ADC that combines ...
In this short video we show an LED light demo to ...
02:46
Wireless Power enables applications where it is difficult ...
07:41
LEDs are being used in current luxury model automotive ...
With design sizes expected to increase by 5X through 2020, ...
01:48
Linear Technology’s LT8330 and LT8331, two Low Quiescent ...
The quality and reliability of Mill-Max's two-piece ...
LED lighting is an important feature in today’s and future ...
05:27
The LT8602 has two high voltage buck regulators with an ...
05:18
Silego Technology’s highly versatile Mixed-signal GreenPAK ...
The quality and reliability of Mill-Max's two-piece ...
01:34
Why the multicopter? It has every thing in it. 58 of ...
Security is important in all parts of the IoT chain, ...
Infineon explains their philosophy and why the multicopter ...
The LTC4282 Hot SwapTM controller allows a board to be ...
This video highlights the Zynq® UltraScale+™ MPSoC, and sho...
Homeowners may soon be able to store the energy generated ...
The LTC®6363 is a low power, low noise, fully differential ...
See the Virtex® UltraScale+™ FPGA with 32.75G backplane ...
Vincent Ching, applications engineer at Avago Technologies, ...