LED Work lights for milling machine

Going back to the question about power supplies for LEDs, I bought this unit last year to give 20A at 12VDC as a supply for a brushless moter - I wasn't sure that it would cope but it has performed faultlessly giving a very stable 12V.

At 3.99 plus another tenner for postage (to France), I cannot complain. They also do higher voltages which I am bearing in mind when I next upgrade my CNC drivers.

eBay reference/description was (last year):

DC 12V 20A Switch Switching Power Supply Driver For LED S... (120846730910)

Simon

Hi

A usb 5 led strip on a flexible arm, 5v and can be powered from a iphone/blackberry/kindle charger. A extension usb cable can be used to make it quite a useful bright lamp. Branded as Signalex, £1.99 off ebay or £1.00 in poundland.

Ironically got a parcel today from ARC and it it was a LED machine light.

It's on a magnetic base, bendy spring type that stays where it's put, and a nice turned and milled alloy head that holds 3 triple A batteries.

Push on, push off switch on the end. O and I nearly forgot, the magnet has a keeper on it the exact same size as the magnet so don't try to stick it down without removing the keeper.

Not that I'd do that of course

Shot taken at night with one overhead light on.

Same shot with no lighting at all.

The head unclips and can be used as a torch. Very impressed with this as you can get the light exactly where you need it and no trailing wires. Won't suit everybody but I'm well geared up for AA and triple A's in rechargable format.

Now need to order a couple more or at least one more so I can have a light either side.

John, the only problem with the rechargables is that with three of them you are about .9V down, although I suppose the lower internal resistance does help.

Here in NZ LED house hold lighting is getting a bit more affordable. Ian S C

Ian,

If you are that worried about being 0.9 volts down we can always have a whip round for you. I'll throw 0.1 volts in, any other takers ?

UK volts might not be compatible though, owing to the exchange rate.

Hi, All.

Indeed, lighting is the key to highly accurate work. Since stage and event lighting is what I do for a 'Real job', we have been at this One for a while.. See Ipix, or the strand archive, to see how reflectors work. Flood, spot or something in-between. It's interesting, not only to note, the colour temperature of the devices being used, against metal, but the built-in reflectors to either the SMD (EUGH!) or wired packages. Has anyone tried drilling holes in the facets of a ready built MR 16 yet? See Patt. 23 from strand lighting. Parabola, x sqared = y and all that. Has anyone considered using a micro-fresnel lens in front? See source 4 5 degree, and then use it to focus? See ETC source 4, (or source 6 as it actually is?) I'm going to run a bit of tri-lite across the roof of the workshop, and some hard power feeds... How to etch using UV LED arrays? similar kind of thing. Power problems. 100 LED's soon add up the I's!

K1.

Sorry Kris, I do not understand your comments. This posting started with th use of a $2.59 LED to light the work area on a milling machine.

I think Kris is a professional lighting engineer and aims to see what he can do at the scale of his whole workshop.

Neil

Here's one answer

Build two CREE lights into the end of the spindle casting, in this case the spindle is a HF converted motor.

Switch all the lights out, supply with 5v at 350ma

Prepare to start welding

wow!

One of my stepsons gave me a Cree torch for Christmas. Scary bright, with variable brightness and flashing. It has a Lithium battery and a scary looking charging arrangement...

Neil

<Hurriedly removes grocer's apostrophe before anyone can notice>

Edited By Stub Mandrel on 18/03/2013 21:06:26

I came across this on another site and thought it might make interesting reading with this increased use of LED lighting for our machine tools.

http://lnk.nu/cree.com/2dnu.pdf

Edited By John Stevenson on 03/04/2013 08:57:55

Edited By Diane Carney on 14/04/2013 00:01:40

Hi,

Can a moderator please edit the long url in modeng2000's post to link - it's not only made the posts go under the ads, but on my iPad they're coming out the other side!

John

Sorry about the long url, it is fine on my display so I thought all would be ok.

John

Good morning John.


You could also do that ***LINK***.

Regards
Dias Costa

Excellent, and very "resposnible" info from Cree.

Erratum

for "resposnible" please read "responsible"

... but please do read the Cree document.

MichaelG.

Neil,

I think you will find that Cree's definition of an "LED component" differs from your interpretation.

MichaelG.

.

Some further reading, here

Edited By Michael Gilligan on 03/04/2013 11:20:56

Edited By Michael Gilligan on 03/04/2013 11:21:34