Instructables
Picture of How to make an Iris Diaphram watch
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Firstly I must take off my top hat and bow to Gogglerman for his wonderful creations and inspiration. He is a true artist and this project would not have been conceived if not for him and it would not have been attempted without his inspirational work. If you enjoy this project I hardily suggest you look up Gogglerman and get ready to be wowed. Now on to the fun part. I constructed this Iris aperature out of plate and sheet brass. On this first attempt at an Iris aperature I used silver solder and a propane torch to solder the pieces together. If no one has ever tried this I would submit that it is a pain in the hind quarters. On the subsequent projects after this piece I utilized a high powered electric soldering iron which proved to be much easier. Due to a lack of planning and a mistake on my part I ended up using a five leaf mechanism instead of six leaves, this gave it a slightly less than professional finish but overall I am pleased with it. I hope you enjoy it. I will add more body to this instructable as time passes so keep an eye out for changes to it and new instructables I will be posting.

Thank you Gogglerman!
(Here is a link to Gogglerman's page)
http://www.instructables.com/member/gogglerman/

 
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haynie2 years ago
what is flux for i know its for soldering but what perpous
switch62 haynie2 years ago
All metals will develop an oxide film when heated. This film stops the solder from "sticking" to the metals. The flux cleans the metals being joined and protects them from oxidization until it sticks. Soldering is actually an alloying process where the surface of the metal and the solder form an alloy. This will not occur with a metal oxide in the way.
I'm sorry to inform you that soldering does not form an alloy. An alloy is defined as a metal made by combining two or more metallic elements, especially to give greater strength or resistance to corrosion. When soldering, the base metal and the solder metal do not combine.

Guys, what we were all taught (soldering doesn't alloy) was right at the time. Science marches on and it's been discovered that it does, sort of. On a scale that's only relevant to electronics production and nanotech. So why argue? It isn't relevant to this sort of work.

This is two years old, man.

Ah, right. Good point. Thanks for taking a sec :/

(removed by author or community request)
Then my Engineering Chemistry professor was wrong. Sorry, but the surface of the base metal and the solder do form a very thin alloy layer. The layer may only be a few atoms thick but it is an alloy.

Wikipedia : Soldering - Processes, "Soldering differs from gluing significantly in that the filler metals alloy with the workpiece at the junction to form a gas- and liquid-tight bond."


http://www.chemicool.com/definition/solder.html

http://technologyinterface.nmsu.edu/spring97/electronics/solder/solder.html
ShadeStride (author)  switch622 years ago
As far as I've researched I believe switch is right. Good explanation. :)
mjursic2 years ago
Nice project. You say dremel tool--that's no dremel--it's a FOREDOM! That said, I love the project. May try to do one myself. Probably not as nice as yours, though.
eruger mjursic14 days ago

It does look exactly like my Foredom's handpiece! Which could never be found at HB. They wouldn't (couldn't) sell any of the illegal knockoffs either (BTW counterfeit Foredoms are apparently a real problem). Curious.

ShadeStride (author)  mjursic2 years ago
Lol. Well it's a cheapo from harbor freight. But I say dremel because the same thing can be achieved with a dremel and it's a brand name that has been adopted to include any off brand rotary tool. As far as doing your own version I am probably going to put together some patterns for anyone interested in doing it. :) thanks for your comment!
could you please upload the patterns please? :D struggling a bit with the iris pieces for a different project :)
It looks like a flex shaft. Flex shafts are, in my opinion, a lot easier to use than a dremel hand tool and, I believe capable of greater speed with less vibration.
OpIvy1 year ago
Really nice project :) where can I find brass or copper sheets online for a good price?
eruger OpIvy14 days ago

Amazon has good and bad deals that come and go. Also, if you are doing enough work to justify it:

http://www.whimsie.com/index.html

Note: copper and its alloys are no longer a cheap fallback like they were 20yrs ago when I first started working in red metals, they have gotten a bit expensive.

Gibbiford1 year ago
.How on Earth will you change the battery when it dies?
ShadeStride (author)  Gibbiford1 year ago
The case comes back apart and I can acess the battery. I have hopes of integrating an automatic "self-winding" watch in another project.
Nice job! Looks wonderful. Thanks for the inspiration!
nerd74732 years ago
cool
rjessup2 years ago
Shade stride thanks for this instruct-able the original was beautiful but yours was much more informative.
zomzilla2 years ago
out of interest: did you look at other types of iris?
if so why did you choose this type?
paqrat2 years ago
Congratulations on a very good instructable.
monsterlego2 years ago
I have always wanted one of these, I'll have to get around to it some day.
KontaKt2 years ago
You can't enter this in a contest! It's a copy off of a different instructable.
ShadeStride (author)  KontaKt2 years ago
Well it's loosely based on another instructable. That's true but it is different in design and the instructable on which it is based has no textual content on the construction of the object. So I had to figure all of that out on my own and I did post textual directions which are totally new from the project I loosely based this on. The methods which I used to construct this are surely different. Also my entry was approved and I do give credit to the original for the general idea so they must be aware of it. I would also point out that there are other entries based loosely on other instructables, such as goggles and there is a monocle and any number of other things which might have been inspired by other instructables. As far as instructables inspired by other instructables go that would include ALL instructables because without the first instructables posted no one would have the thought to post one.
Thank you for taking the time to document it all! That first iris diaphragm watch Instructable led me to spend a few days investigating how irises work, whereas if he had documented it as well as you have here then it would have saved me some effort!
Ok then. that sounds good.