CAT100 - a cat food can thrower (100kcd)

[Dr.Jones]

Hi... I feel like posting my ...uhm... 'special' design thrower here, the CAT100, a cat food can thrower with 100kcd.

Inspired by aspheric lens based throwers I decided to try something like that on my own, but with sort of minimal workmanship since I don't have a hardware workshop. I took the biggest lens on DX, the 66mm lens, with an effective diameter of 61mm, focal distance of 44mm from the plane side, 67° aperture angle (full width), NA 0.55, and tried to find a housing for it. I ended up with a can from some cat food, adjusted with some pliers.

The battery compartment (14500) is rolled paper with a 1.0A linear driver taped on top and a left over tail cap clicky as switch. I'm clearly not happy with it's sloppy attachment to the body, but I just wanted it to work. The LED is thermo-glued onto a 2mm copper plate which is thermo-glued into the can.

I measured 104kcd (measured at 6m and 11m, with suspiciously consistent results).

Mounted on a tripod with clamp with one of my cats that somehow wanted to be in that picture, too:

Finally, some beam shots:

As you can see, "throw" depends on the brightness of the target.

It even lights up the stars:

(just kidding

 

[SmurfTacular]

OMG, that is hilarious. You literally made a aspherical bezel out of a tin catfood can???

Whatever works, right?

 

[Kestrel]

Dude, you definitely should have kept the cat food label on that can. :thumbsup:

 

[ninemm]

Dude, you definitely should have kept the cat food label on that can. :thumbsup:

Definitely! That is super cool!!! That must be putting about 100 otf tunas right?

:twothumbs

 

[Ra]

That's a great idea !!! I also happened to have a cat ! I'll look into that.

This is what CPF is all about.. And I sure like it..


All the best,

Ra.

 

[gcbryan]

Who says Germans don't have a sense of humor!

I think you have the worlds longest throwing cat food can!

 

[ICUDoc]

GREAT project- the dichotomy between the ghetto-quality construction and the astounding ghetto-lighting beamshots is magnificent!!!!

 

[jch79]

This rules. AWESOME! :twothumbs

 

[daytec]

THAT is the stuff the cat covered up.I LIKE IT!!!!

 

[pepko]

this is the ugliest homemade project I have seen here ... but it is the most throw cat food can !!!

 

[turboBB]

Awesome! lovecpf

Now, a redo with the label on the can is a must!

 

[saabluster]

That is hilarious. You even have a built in anti-roll feature. I also noticed you are using the EZ900 version XR-E. :naughty: I finally after all this time got my hands on a few.

 

[rlorion]

Definitely! That is super cool!!! That must be putting about 100 otf tunas right?

:twothumbs

that is hilarious...

 

[Nyctophiliac]

Absolutely Class!

obviously 8 out of 10 flashaholics said their cats preferred it!

Imagine what you could do with a nice tin of Chum!!!!!! :devil:


lovecpf

 

[DM51]

ROFL! Superb!

Now let's see what you can do with an empty 50 gal. oil drum.

 

[ma_sha1]

Hi... I feel like posting my ...uhm... 'special' design thrower here, the CAT100, a cat food can thrower with 100kcd.

Inspired by aspheric lens based throwers I decided to try something like that on my own, but with sort of minimal workmanship since I don't have a hardware workshop. I took the biggest lens on DX, the 66mm lens, with an effective diameter of 61mm, focal distance of 44mm from the plane side, 67° aperture angle (full width), NA 0.55, and tried to find a housing for it. I ended up with a can from some cat food, adjusted with some pliers.

LOL,

There is a host for this lens, it's an inexpensive DX shower head flashlight,
the lens will fit in with minor grinding on the edge, no need for a hardware workshop:
http://www.candlepowerforums.com/vb/showthread.php?t=264722

Can't wait to see your next Mod: CAT500, using 12 inch round Cat food bucket

 

[saabgoblin]

So does the light smell like Friskies once it starts to heat up and are you now being followed by hoards of stray cats as of late? Nice Job!

 

[F250XLT]

One of the best EVER, great job

 

[Juggernaut]

WOW, I've got some competition!

 

[mrartillery]

Now let's see what you can do with an empty 50 gal. oil drum.

+1, you've got my vote for most ingenuitive design of '10 thus far!