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A high powered LED lamp

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Alan Haisley:
Tim,
The vender appears to have changed the SKU on the diffusers you used.


--- Quote from: spuddevans on August 19, 2009, 03:24:03 PM ---I got all the LED's, diffusers and the power supply from Dealextreme in hong kong, these are the links;

LED's : http://www.dealextreme.com/details.dx/sku.1302
Diffusers : http://www.dealextreme.com/details.dx/sku.2395
Power supply : http://www.dealextreme.com/details.dx/sku.14034

--- End quote ---

I think it is now 1917.

Now, to the reason I was reading your post in the first place: I was looking for clues on how to make the socket part of a ball and socket joint. Turning a ball is pretty obvious but how the heck does one turn the inverse of one?  :scratch:
It seems likely from your post that you must have done it.

Alan

krv3000:
well dun

spuddevans:

--- Quote from: Alan Haisley on January 31, 2013, 12:01:32 PM ---how the heck does one turn the inverse of one?  :scratch:
It seems likely from your post that you must have done it.

--- End quote ---

Actually I cheated, I drilled a hole very slightly undersize for the ball (about 0.1-0.2mm smaller) and then cut a slot with a hacksaw to allow a bit of spring to grip the ball. In fact I think I cut the slot 1st, which then allowed the steel to spring apart while drilling providing for the grip on the ball.

With a larger ball socket it would be possible to turn a slight concave inner section in the lathe I guess.


Tim

Bluechip:
I don't think industry is all that keen on internal spherical wotsits.
 
I've seen quite a lot of 'ball-joints' made by using a sphere between two shallow countersinks ..
 
Dave BC

No1_sonuk:

--- Quote from: spuddevans on January 31, 2013, 05:36:32 PM ---With a larger ball socket it would be possible to turn a slight concave inner section in the lathe I guess.
--- End quote ---
A Ball-nose end mill could work too.

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