BeoWorld Private Wanted

Re: Glas panel Beomaster 3500/4500

Leslie — Tue, 02 Aug 2011 00:18:17 GMT

Austin, you're clear explanation is excellent, thank you for that, and now I finally understand how it works. At that time I wasn't sure in which order to work but now I do. Saves me time for the next other panels!

Greatly appreciated!

Re: Glas panel Beomaster 3500/4500

camshaft — Mon, 01 Aug 2011 23:55:38 GMT

Leslie, the touch system is quite simple. It uses capacitive change to register your touch. The grey squares on the back of the glass are simply conductive graphite (I suppose painted on). The rubber peg is also conductive. when you touch the glass, your finger and the mica pad form the two "plates" of the capacitor, with the glass serving as the dialectric. I had thought about how one would make replacement panels also, but as I haven't needed them I never bothered to look too far into it. My basic plan though would be something like doing a thin black paint spray on the back. Then make a simple autocad file that a laser engraver could use to burn off the words in the black paint. Then use a letter silk screen to put the white paint words on the glass, or just pay a silk screening company to do it.

Best of luck,
Austin

Edit: Sorry, didn't see your other thread where you already noted how they work.

Re: Glas panel Beomaster 3500/4500

Leslie — Sat, 25 Jun 2011 14:23:15 GMT

Medogsfat:

I cannot see any reason why that wouldn't work Leslie.

Chris.

You're right Chris! Received the bottle today and tried it on a piece of glass which has been painted black first.

And it really works! Next step will follow and that will be the mirrorized text engraving on the back side...

Re: Glas panel Beomaster 3500/4500

Medogsfat — Thu, 23 Jun 2011 11:25:25 GMT

I cannot see any reason why that wouldn't work Leslie.

Chris.

Re: Glas panel Beomaster 3500/4500

Leslie — Wed, 22 Jun 2011 14:52:36 GMT

Bought these already Chris, hope that's what I need! Thanks anyway...

Re: Glas panel Beomaster 3500/4500

Medogsfat — Wed, 22 Jun 2011 13:45:38 GMT

Leslie:

Does somebody knows how this grey material works what you see around the touch "buttons" on the back of the glass panel.

This stuff should touch the rubber pins on the PCB.

Is it a sort of conductive material and if yes what does it conduct to the rubber pins, heat or electricity? What can I use nowadays to simulate this material. Is there anything on the market?

THIS will work fine. Also good for repairing the contact sheets on early Beolinks

Chris.

Re: Glas panel Beomaster 3500/4500

Evan — Mon, 20 Jun 2011 16:07:28 GMT

Leslie:

This would be better

Very good work on the panel btw!

Re: Glas panel Beomaster 3500/4500

Leslie — Mon, 20 Jun 2011 15:14:12 GMT

This would be better

I'm a bit concerned about the touch part of the buttons. Let's see if that works!

Will keep you informed...

Re: Glas panel Beomaster 3500/4500

Evan — Mon, 20 Jun 2011 14:19:26 GMT

Yes! That would be very cool. Perhaps also putting "iPod" in red up above as well?

Re: Glas panel Beomaster 3500/4500

Leslie — Mon, 20 Jun 2011 12:49:08 GMT

Something like this you mean?

Re: Glas panel Beomaster 3500/4500

Evan — Mon, 20 Jun 2011 11:44:18 GMT

I don't have the know how to answer that one but I had a great idea - when you repaint the glass - instead of say TAPE 1, put iPod in it place!

Re: Glas panel Beomaster 3500/4500

Leslie — Thu, 16 Jun 2011 15:45:31 GMT

I measured the surface with an Ohm meter and it has a range from 200 ohms to 2 K. So it's an electric conducting material. That I can understand but what makes it active by just touching the glas on the other side? Interesting question?

Re: Glas panel Beomaster 3500/4500

Leslie — Thu, 16 Jun 2011 15:39:46 GMT

That makes sense Evan, but what happens through the glass when touched by the finger on the other side?

Re: Glas panel Beomaster 3500/4500

Evan — Thu, 16 Jun 2011 15:03:54 GMT

Regardless, I know the rubber and the metal pads (not sure what metal or even if its metal ) do need to conduct.

Re: Glas panel Beomaster 3500/4500

Leslie — Thu, 16 Jun 2011 14:48:42 GMT

Does somebody knows how this grey material works what you see around the touch "buttons" on the back of the glass panel.

This stuff should touch the rubber pins on the PCB.

Is it a sort of conductive material and if yes what does it conduct to the rubber pins, heat or electricity? What can I use nowadays to simulate this material. Is there anything on the market?