A few weeks back I decided to make a CCS Deflection Chart using some CAD software that I also use at work. It is really just a Grid of 1" major squares with 0.1" minor squares labeled to make it easier to measure deflection. Anyhow, started off with a 36" x 48" chart and started looking around for a place to printout the chart. Found out it was going to cost nearly $100. Found out that our local library has a large media printer that can do up to 24" so I made up another chart that is 24" x 48". Took it to the Library and printed it out on banner stock. Only cost me $10.

If these might be useful to someone else feel free to download and find someplace to print. Important that whoever prints out for you that they do not scale or reduce for margins or anything like that when printing. Chart needs to be printed out at true scale to remain accurate.

Below link to Dropbox should allow you to download either of the Deflection Charts and I also placed (4) pictures of my current setup to give you an idea how I have things setup. I hung some pegboard on my wall so I could move this chart around as needed.

[www.dropbox.com]

Thanks Kevin! I was just about to make this in solidworks, but you saved me the time! I’m working on a 3D file of a deflection tool that’s holds the blanks with cams for adjustability. I plan to 3D print this vs buying one. I’ll find a way to share that with those who are interested as well.

Brent Willey Wrote:
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> Thanks Kevin! I was just about to make this in
> solidworks, but you saved me the time! I’m
> working on a 3D file of a deflection tool that’s
> holds the blanks with cams for adjustability. I
> plan to 3D print this vs buying one. I’ll find a
> way to share that with those who are interested as
> well.

I was thinking about making up a support but the Mudhole (CRB) deflection tool that had been out of stock for a long time is again now available. Cheaper (and less time consuming) just to buy that support tool than mess with making something for me anyhow. The mudhole tool does have cam action for each support that is nice to easily level up blanks. Only issue is that sometimes the inside cam support can get a bit loose and if loading a heavier power blank can move a bit when deflecting. Now that I know that I just check tightness before deflecting heavier power blanks.

[mudhole.com]

To do it right you have to have a distance that you anchor down that is used all the time, I believe it was 12 inches in the original articles. My bookcase was just about that deep so that is how I started, I just piled and jammed books on top till it was solid and went from there, and it worked fine. No need to start out with a construction project before you can learn something.

Spencer Phipps Wrote:
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> To do it right you have to have a distance that
> you anchor down that is used all the time, I
> believe it was 12 inches in the original articles.
> My bookcase was just about that deep so that is
> how I started, I just piled and jammed books on
> top till it was solid and went from there, and it
> worked fine. No need to start out with a
> construction project before you can learn
> something.

I have been using 10% of the length of the blank as the distance that needs to be supported. So, for a a 7' rod you'd be supporting ~8.4",etc... I got that number from this article [www.common-cents.info] (page 4 right side). When I first started doing the measurements I just clamped the blank/rod to a shelf and used some shims to level it up. Lots of ways to do it but will say the Cam action supports are nice to make it easy to level.

Don't forget old pennies weigh more then the new ones. Solid copper pennies weigh 3.11 grams (+/- 0.130 g.), whereas the copper plated zinc pennies weigh only 2.5 grams (+/- 0.100 g.).

The CCS specifies that only pennies minted from 1986 and beyond are used.

..........