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Making a torch

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Sam Longley 117/12/2018 22:24:43
702 forum posts
26 photos

Yeah!!! I know that one can buy them dead cheap (Or pay a fortune) but you can also buy a biro for pennies & people still make pens!!

So has anyone tried making a torch. Perhaps a nice aluminium  rechargeable one? Coloured, anodised barrel perhaps. LED's or Zenon ( what should one use?) Are there any designs out there to follow?

I want a nice handy powerful round rechargeable one for the boat that will not go flat in five minutes & be there when I need it & not just glimmer at me & die.

Edited By Sam Longley 1 on 17/12/2018 22:25:50

pgk pgk17/12/2018 22:33:27
1279 forum posts
278 photos

Led automobile headlight and a moderate 12v leisure battery??

Michael Gilligan17/12/2018 22:58:40
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12943 forum posts
555 photos
Posted by Sam Longley 1 on 17/12/2018 22:24:43:

I want a nice handy powerful round rechargeable one for the boat that will not go flat in five minutes

.

LED beats Xenon for that ^^^

This is probably the best place to start your research : **LINK**

http://www.candlepowerforums.com/

Loads of technical information, and lots of discussion !

MichaelG.

Clive Hartland17/12/2018 23:17:45
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2427 forum posts
40 photos

I bought a Workzone one from Lidl. It has a 200 mtr. beam and two levels of power and a flashing light as well. £19.99 Charger comes with it.

not done it yet17/12/2018 23:24:05
2816 forum posts
11 photos

With a bouyancy aid built in?smiley

Cabinet Enforcer17/12/2018 23:46:54
38 forum posts
2 photos
Posted by Michael Gilligan on 17/12/2018 22:58:40:
Posted by Sam Longley 1 on 17/12/2018 22:24:43:

I want a nice handy powerful round rechargeable one for the boat that will not go flat in five minutes

.

LED beats Xenon for that ^^^

This is probably the best place to start your research : **LINK**

http://www.candlepowerforums.com/

Loads of technical information, and lots of discussion !

MichaelG.

CPF used to be the best (only?) place for flashaholics but if your interest is in making your own within reasonable constraints, then http://budgetlightforum.com is probably the most useful now.

Some of the blf designed Chinese made torches are fantastic value, but if you have an old d cell maglite lying around then a proper led conversion is a nice little project.

duncan webster17/12/2018 23:51:41
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2025 forum posts
30 photos

I've got a D cell Maglite, if anyone wants it is there for the cost of postage, or pick up from north Cheshire

Michael Gilligan18/12/2018 00:10:23
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12943 forum posts
555 photos
Posted by Cabinet Enforcer on 17/12/2018 23:46:54:

CPF used to be the best (only?) place for flashaholics but if your interest is in making your own within reasonable constraints, then http://budgetlightforum.com is probably the most useful now.

.

Thanks for that

http://budgetlightforum.com

MichaelG.

Edited By Michael Gilligan on 18/12/2018 00:11:48

Ady118/12/2018 00:27:36
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3462 forum posts
513 photos

Got some of these at morrisons, three quid each, orange ones, found this black one recently at TK max

Runs on 3 x AAs for up to six months

They use a rheostat switch and on the low setting they have an amazing single charge lifespan, never come across anything else like it

So consider a dimmer switch as part of your super dooper torch

Bill Pudney18/12/2018 03:33:57
405 forum posts
16 photos

Years and years ago, decades even, one of the young engineers pet projects was a thing known as a "Battle Torch". Machined from solid high grade al. alloy, with specially set up optics, and a ni cad battery. It was indeed an impressive piece of kit, very good light, very solid, almost indestructible, just what the Army wanted. At a bid review where it was announced that the cost, (the "cost", not the selling price) was over $500. One of the more cynical people plopped a metal torch on the table and said...."Bunnings, $20, it does everything the Battle Torch does"

Guess who got his nose out of joint.

Merry Christmas

cheers

Bill

Barnaby Wilde18/12/2018 06:40:10
324 forum posts
1 photos

When I hold my current 3x C cell LED Maglite in my hands I can honestly say that I couldn't make it any better, it's lightweight, well balanced & the light practically sets fire to the hedgerows. But I do miss carrying my 4x D cell with it's whimpy xenon bulb, simply because it reassuringly doubled up as a very effective truncheon.

I never knew that you could upgrade them with a simple LED bulb conversion. Thanks for that, me & the dogs will feel much safer now.

Ady118/12/2018 09:19:01
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3462 forum posts
513 photos

If you search for cree torch on ebay the choice is ridiculous

3 for a tenner

correction: 5 for a tenner

Edited By Ady1 on 18/12/2018 09:20:55

Roger Provins 218/12/2018 09:45:05
338 forum posts

I'd build something using leds and 18650 3.7v 4250 mAh cells.

Michael Gilligan18/12/2018 09:54:14
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12943 forum posts
555 photos
Posted by Roger Provins 2 on 18/12/2018 09:45:05:

I'd build something using leds and 18650 3.7v 4250 mAh cells.

.

At last we are getting back on topic

Thanks Roger yes

MichaelG.

Sam Longley 118/12/2018 10:19:42
702 forum posts
26 photos

As I said in my original post--we can all buy biros for pennies - But??

Machining the aluminium, cutting the threads, - nice fine ones so it feels like quality-anodising the case, making the clip & decent knurling. Battery fixings could be fiddly & a job for a printer.

I am sure that i could work out something for a reflector or LED mounting & perhaps use a small magnifying glass lense for the glass. Would that work? Focal length & all that.

Not sure about the electronics & that is where I was hoping to get some comment. Switch could be a screwed base.

It was only a thought for a project different to the run of the mill steam engines etc etc

 

Edited By Sam Longley 1 on 18/12/2018 10:22:53

Michael Gilligan18/12/2018 10:31:17
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12943 forum posts
555 photos
Posted by Sam Longley 1 on 18/12/2018 10:19:42:

Machining the aluminium, cutting the threads, - nice fine ones so it feels like quality-anodising the case, making the clip & decent knurling.

.

For use on a boat, Sam ... I would think twice before using Aluminium

MichaelG.

Sam Longley 118/12/2018 10:42:21
702 forum posts
26 photos

The Aeries self steering is alumnium & is 40 years old. It is anodised. The torch will not get wet so I am not worried about it being aluminium. thanks.

But, that being said, what would you suggest as an alternative that is easy to machine , turn, thread & mill flats on etc?

Neil Wyatt18/12/2018 11:13:17
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Moderator
15843 forum posts
672 photos
73 articles

One of my first lathe projects was an aluminium and brass torch with a push-button switch at the back and a blue LED (you couldn't get cheap white ones in 1999).

Neil

Found it!

torch.jpg

Edited By Neil Wyatt on 18/12/2018 11:32:48

larry phelan 118/12/2018 12:09:21
404 forum posts
11 photos

Saw something like that on Ali Express,very useful when walking alone,and I think you can even use it as a torch as well !

Worth checking out.

Bazyle18/12/2018 12:18:38
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4489 forum posts
184 photos

Since a reflector is useful but hard to make I'd get a cheap torch to cannibalise for that but make a body (wood for buoyancy) with a bigger battery. Perhaps have some fun with a trick or hidden switch. I think torch making is a hobby in its own right in the 'states, like pen making, pointless but fun for some.

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