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Hollow shafted potentiometer? Answered

Hi everyone, 
I have a project I'm working on which has two halves that are connected using a potentiometer as the axis, resulting in the two being able to twist, changing the resistance of the potentiometer.  The problem I have is that the battery is in one half and the circuit is in the other half.  I have to somehow get the power to the circuit, but still have the pieces still be able to rotate.  I can't have the wires just sticking out of the side because it has to twist, and that would look horrible.  My first thought was to drill a small hole through the shaft of the potentiometer, so that I could run the wires through that, but when I tried to do that, it turned out to be a lot harder than I expected and I now have a busted potentiometer.  I would really like to avoid slip rings of any kind, as they would be exposed to the elements.  Does anyone have any ideas, or any advice on how to drill a nice hole through a steel rod lengthwise?  Ideally I would drill the hole, but if that's too difficult, I'll try whatever.
Thanks
~Dudes

Discussions

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Downunder35m

3 years ago

I ususally use a drill to make holes...

Either put the rod in a lathe or use a drill press.
Secure drill in the vice, add the rod to the chuck and let it go into the drill.
This way the rod centers itself and the rubbish falls out.
But you do realise that you get steel and brass pipes in various diameters?

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dudesDownunder35m

Reply 3 years ago

Yeah, I tried to use a drill press, but unfortunately it didn't work at all. I don't have a lathe, although that would be fantastic. I don't just need a small tube, I need to drill a hole through the shaft of a potentiometer, which is steel, and specially shaped, so I can't replace it with a brass tube. Thanks for the suggestions though!

~Dudes

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Downunder35mdudes

Reply 3 years ago

See if you can get your hands on a NeGcon controller ;)
I loved them back in the days and should never have sold mine.
Problem with drilling through a potentiometer is that you really risk breaking things unless you can remove the shaft.
And if you can remove the shaft it would be easier to replace it with a plastic one or to glue a suitable pipe in.
Otherwise you have to replace your pot with a "hollow shaft potentiometer" - you get them from many companies like Vishay and so on.

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UNIPOT

3 years ago

Hi...

I am Shailesh from Uni-Automation, India.

We have Hollow Shaft Potentiometer with us.

Please go through below website

http://www.uniautomation.com/products.aspx?prodtyp...

Also, we can give you customize products.

Please send your requirement on shailesh@uniautomation.com

Thank You...

Shailesh

+91-8378968660

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dudesUNIPOT

Reply 3 years ago

Those look just about perfect, but I didn't notice a price, what kind of price range are we talking about? A couple dollars, 10, 50?

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UNIPOTdudes

Reply 3 years ago

Its depend on a quantity & the specifications.
Price starts from 4 USD/Piece to 100USD/Piece based on the quantity & the specification requirements.

Can you please mail your the required quantity & the specifications?
My email id is shailesh@uniautomation.com

Also, can you please share me your email id & the contact details?

Thanks,
Shailesh
+91-8378968660