4th Annual BLF/OL Scratch Made Light Contest- Hand Made 10/31 finished

nice workmanship

Parting is such sweet sorrow.

Shucks. Ask anyone, I’m not patient, just OCD.

So I’m dog sitting Frances, the cattle dog and brought some things to play with while I’m there, among other things, the wood collar piece. And proceeded to cut off the plywood section with my little Vaughan mini bear saw. Remember the paper between the pieces of wood? This is where I comes in handy. After that it took only seconds to sand down to clean wood. I think the grey w/d sandpaper skews the white balance a bit. I went home earlier today and cut a fifth disc and fitted it as well(all still just loose parts). And here showing more or less the depth of the reflector. If I use this one then all of the copper pill is in the finned area whereas with a p60 reflector part of the pill extends into the hollow under the wood. I’m not really sold on these fins, they seem too thick and chunky to me at 1.5mm thickness. I’d like to have the same mass in the same length with more surface area so on the way back this evening I stopped by the salvage yard and found some more aluminum sheet. $1.50 for both of these. One’s 1.4mm thick and the round one is 1.25mm and about 12” in length. First I’ll see how I like the 1.25mm stuff but it’ll be a few days before that. Other things will happen first when your modding with ADD.
Some prep and a reflector mod

OCD aye. I’m not sure about that but anyway. :wink: That piece of timber just looks better with age. As far as the fins look though, mine are from memory 1.25 and I reckoned they looked thick. Must be a trick of the eyes.

On a bigger host or maybe with black ano they’d look thinner but I want it to look slimmer. With the copper core and pill there will still be plenty of weight to it and the tube will necessarily be a bit thicker than the average 18650 tube which seems to be around 24mm. 25-26 mm would be nice but leave only 2-2.5 mm wood thickness. For one thing the spacer rings are more than 24 mm OD and the tube won’t be thinner than that.

Some prep and a reflector mod. Warning, image heavy

Of course I didn’t bring everything I needed for all of the work I could have done and still can’t use the hand for much(shouldn’t as much as can’t) but there’s some prep to do first anyway. I need to join the threaded copper core to the front of the head using brass sheet brazed to both. I need to somehow ensure that the two pieces will end up axially aligned and not skewed or off center. The first thing to do is square the ends of each piece. For the copper I laid the piece on a square to find the short side and put some tape there. Then sanded until the tape had worn through. This removed a bit more from the longer edge and after repeating 8-10 times the piece was as square as I could make it. The brass piece was likewise taped and sanded but to find some semblance of square I used the wood collar moving the collar all the way around and marking the low point to find the average. The brass sheet will be brazed to this piece first then a 1/8” hole drill as close to center as I can and widened to ~3/16” adjusting to center as needed. This part I can’t do as I forgot the hack saw and screwed up one piece trying to cut it with the recip saw(just can’t hold it well enough yet). I could however make the jig that will hold the copper piece centered on the brass hole. I purchased a couple 1/8” fender washers and reamed the center hole to just barely fit a 10-32 machine screw then filed and sanded the outside to just fit into the threaded copper core. The nut will space the washer above the brass sheet so that the washer isn’t brazed as well. The gap between the nut and the copper should be sufficient to prevent even the nut but especially the washer from being brazed but won’t be a serious issue even if it does, we’ll just have to wait and see on that though.

On to more stuff. I like this reflector, it’s nice and deep, more so than a P60 reflector that fits a bit loosely. The problem is it doesn’t fit into the bezel. Or into the head. So I need to file/sand about .5 mm from the lip and make the second step disappear into the taper of the sides. I’ll also have to bevel the inside of the head to match. Just covering the openings with tape would be easy and keep debris out of the reflector but would also pull the coating from the leading edge. Instead I used a rubber washer, a machine screw and acorn nut(all I had that fit) and a few extra metal washers to both take up the slack and compress the rubber one against the reflector. I used an exacto knife to trim the rubber flush to the edge. After that I traded the larger washers for ones a tad smaller than the reflector but still big enough to compress the rubber and started filing. It took several sessions because of the wrist but first I got the lip to fit into the bezel. And then the second step filed and sanded to match the tapered sides. It won’t fit any deeper into the head until I bevel that but the bezel is just about perfect. :+1:

Thanks for checking in. Feedback keeps me going.
Brazing the head

You’ll have to get onto YouTube and look up a few old music clips to get really orsm feedback. :person_facepalming:
Its good to see you soldering on here with the injury. The light is really starting to take shape.
I may have missed something but your not working from home?
Also would a strong alcoholic beverage act as a pain killer to help you with the light build? :slight_smile:

Still no soldering or brazing. I might have tried but couldn’t make the cut. The sniveling coward Doesn’t like to travel so I brought down a bag of bits to play with while I dog sit(not working either). A beer a day and all he couch I can potato. Nicer place with an excellent couch.

Looking so good! Great job on the reflector filing. It looks like it was meant to be that way!

Brazing the head Moved to post #123.

Marvelous!

Lookin’ Good bump :wink:

Thank you bump. One more and I relocate 118 to 122 and it loads fast again. Only seen a few pics of your light CRX but it looks fantastic. If it were only that piece I was competing against I’d still have my doubts about winning, a fantastic piece of imagination and craftsmanship.

Hah, I realized I also have a jig saw and metal cutting blades so I cut a square of sheet brass to join the two pieces and cleaned it up for brazing. Being still a bit ricketty I preloaded the brazing wire in the corners so all I bhad to do was heat it up. If the parts weren’t yet hot enough I could have pushed the top piece right off the bottom one with the brazing wire. After letting it cool I used some snips and roughly trimmed the edge. Then used a grinder and sandpaper to finish it off. next I used the calipers to scratch center marks. A sharp centering punch for the first drill bit (1/16”). I used the calipers again to mark the direction of my centering error and with each successive increase in bit size measured and marked how to angle the bit to make a correction. At 5/32 I switched to an exacto knife to finish and ended up within .05mm. I doubt the reality of that given how the edge was ground but certainly close enough to go on.

Going on means stacking the parts with the screw/washer/nut jig as a centering guide and loading it up with flux. Torched! It may look ugly to others but it’s beautiful to me and just some cleaning, cutting, and assembly to go. I’ll give it a hot bath in Fuse Clean to make sure all the flux gets removed but that’s all for the torch work on the head. The jig piece even cooperated by not getting brazed in. I really won’t know how true it ended up until it’s assembled and I spin it to cut the excess from the fins but no visible disasters so far.

9/06 Home at last. A little Fuze Clean and Mothers.
Next

I hope you didn’t think I was gonna leave it like that.

Nice work RBD. Do you use acid to clean the flux etc off?

Some stuff called Fuze Clean FS. Comes as small crystals you dissolve in water and heat to ~160F. Toss in the hot part and seconds later it’s clean. Reusable as long as it keeps working and safe to dispose of. I bought two jars and just finished the first after 2 years.

I did a Google search and not much comes up. In images it shows a couple of your pictures.

Link

Thanks. It certainly works well.

It does. I giggled with glee the first time I used it. Even now it’s a great to see the practically instantaneous change. I used to solder as much as I could, now I braze wherever possible.