CRX Stratis Lumina - 2017 5th BLF Scratch Made Light Contest Winner

This is looking sweet :beer:

How can I get a credit card with my BLF name on it?

Photoshop, or change your name :slight_smile:

make sure the TIR does not get damaged by the UV

Interesting, what emitters did you have in there?
I was just planning on a low power 5mm UV emitter in the centre of the optic, probably 395nm or above as I noticed 365nm gets blocked by the plastic. I might also drill a centre hole in the optic but these decisions are made during the building.

I would definately go to a UV 365nm Emitter like Nichia 276A which needs no filter blocking visible light

Then you need to drill a hole

For that picture someone had hard driven 365nm and thought it were 395nm ones
Likely 1.5W UV radiance per emitter

A nice wee delivery today means I can get started, a slab of copper, the rosewood and some bit's n' pieces.

The Dalbergia latifolia has a purple hue to it which is interesting, goes well with the copper I thought.

This piece is cut into a blank shape for making ukeulele/ mandolin fingerboards.

Hard as rock and sounds great too :D

Today's Tune:

DELIVERY!!

…Sorry - that’s what we yell out at work whenever the postman arrives… :email: :+1:

I refrained from shouting but I did smile and run to the door like an excited kid when I heard heavy stuff hitting the floor :slight_smile:

That’s plenty of rosewood and copper to do more than one of these… :wink:

Looks a lot like the Eye of Sekhmet flashlight from Silent Thunder Ordnance, but smaller! :sunglasses:

https://www.silentthunderordnance.com/shop/eye-of-sekhmet

Shame Carclo doesn’t make a 40mm catadioptric optic.

What’s wrong with the 60mm one? I’m sure with your skills, you could find a way to “fit” it to whatever you were going to use the 40mm one for. Maybe a nice “setting” like jewelers do with diamonds?

I really want this light to be as compact as possible, a 40mm version would have been perfect and I don’t think filing these things down is an option :slight_smile:
Maybe could use it for a future build.
The wood I ordered is only 55mm wide but still, I’ll give it some thought :+1:

:wink:

Got the copper sheet cut into the rough shapes today.

I marked out the lines to cut with digital calipers, a set square and a #26 scalpel blade. I was not looking forward to cutting the metal with a hacksaw so I thought I would try just scoring it repeatedly with a stanley knife, about 20 times down the marked lines each side and then gently bending at the weakened points until the pieces snapped off, much easier :THUMBS-UP:

Each layer is about 1mm larger all round than required, to be made good and sanded down later.

Reference drawing

I also marked out where the glass, optic and MCPCB will be situated through the front piece using the digital calipers with one point held in the centre marking and the other point used to scribe the circles around.

These circles will help to keep me right when taking out this material with a hand file.

I will cut the rosewood next.

Today's Tune:

www.youtube.com/embed/4NIH__j3-vU

I love copper. How thick?

It’s 1.2mm thick, nice stuff.

Measured and cut the wood, now got the rough pieces made up.

Reference drawing

Looks nice but you don't want to eat this sandwich :-)

Today's Tune:

www.youtube.com/embed/EdPGpjdQuGQ

Looks like a high-end dessert. It could compliment the brass-burger I made yesterday :smiley:

More work on the wood today, this is quite difficult when all you have is metal working tools. Hats off to you cabinet makers out there :THUMBS-UP:

I marked out the rectangle shape to be removed with digital calipers fixed to 8.5mm for the long sides and 10mm for the top & bottoms as these still have work to be done on them. I drilled a series of holes inside the lines then used the drill bit(s) to go around connecting the 3mm holes. Snapped five bits doing this :TIRED:

I tidied the holes up with a file, might sand down further later.

Reference drawing

Rough pieces coming together :-)

Today's Tune:

www.youtube.com/embed/JY3znEOMzRQ