CAT100 - a cat food can thrower (100kcd)

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

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

Whatever works, right?

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

Kestrel said:

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

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

:twothumbs

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.

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

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

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

This rules. AWESOME! :twothumbs

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

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

Awesome! lovecpf

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

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.

ninemm said:

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

:twothumbs

Click to expand...

that is hilarious...

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

ROFL! Superb!

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

Dr.Jones said:

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.

Click to expand...

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:
https://www.candlepowerforums.com/threads/264722

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

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!

One of the best EVER, great job

DM51 said:

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

Click to expand...

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