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Binary Marble Adding Machine

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Project by fawig posted 05-26-2014 01:33 PM 1383 views 6 times favorited 7 comments Add to Favorites Watch

I stumbled across this unique project at Woodgears website; the website also had a link to a woodworker in Serbia who made a few modifications to the original design, many of which I incorporated in my version.

After seeing the video of the adding machine in action, I decided it was the perfect birthday gift for a friend at work. It was a challenging project, especially “tweaking” the rockers to work reliably. But all in all, it turned out well and my friend was amazed by its clever design.

Here’s a couple of videos of the adding machine in action:

I used oak for most of the parts and walnut for the rockers. Finished with wax (for lubrication and protection).

-- "I can do all things through Christ who gives me strength." Phil 4:13





7 comments so far

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fawig

51 posts in 2100 days


#1 posted 05-26-2014 01:38 PM

I guess the video links don’t work. Sorry.

-- "I can do all things through Christ who gives me strength." Phil 4:13

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fawig

51 posts in 2100 days


#2 posted 05-26-2014 01:42 PM

!!

-- "I can do all things through Christ who gives me strength." Phil 4:13

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fawig

51 posts in 2100 days


#3 posted 05-26-2014 01:47 PM

!!

-- "I can do all things through Christ who gives me strength." Phil 4:13

View EarlS's profile

EarlS

152 posts in 1037 days


#4 posted 05-26-2014 01:57 PM

Cool machine.

So if I get this right, when you drop a marble into the machine it trips the “1” lever which allows the next marble to go through the hole to the “2” lever and the “1” marble drops out as well? Same idea for all of the subsequent factors of “2”. So in order to add 2 numbers you would break both numbers down into these binary factors, set the marbles for the fist number, drop them, then set the marbles for the second number and drop them. The final configuration of marbles in the levers would be the answer??

Sorry – I’m an engineer and I just have to understand how things like this work…..

-- Earl "I'm a pessamist - generally that increases the chance that things will turn out better than expected"

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Tim

1290 posts in 650 days


#5 posted 05-26-2014 05:48 PM

That’s really cool. I may have to build one of these. Earl, the Woodgears site he linked in the description explains it pretty well, especially the video there.
http://www.youtube.com/watch?v=GcDshWmhF4A

View Dutchy's profile

Dutchy

538 posts in 857 days


#6 posted 05-26-2014 08:19 PM

Very nice build off this Matthias machine.

-- My englisch is bad but how is your dutch?

View fawig's profile

fawig

51 posts in 2100 days


#7 posted 05-27-2014 12:34 AM

EarlS: I’m a Mechanical Engineer and I had to understand how it worked before I built it. The youtube link Tim shared (also on the Woodgears website) is what sold me on the design. Good luck!

-- "I can do all things through Christ who gives me strength." Phil 4:13

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