[sdiy] CNC for synth DIY?

[Jay Schwichtenberg]

If you are interested in making tubes be careful. Make sure you fully 
research the materials you'll need and make sure they are available and 
'reasonably priced'. A lot of these materials may be hard to get, 
expensive or unobtainium.

About 20 years ago a friend worked for a company that made tubes. They 
had bought the tools and materials from a company that quit making 
tubes. Their plan was to do custom and out of production tubes until 
they ran out of materials. They did that until the materials were gone.

Have fun.
Jay S.

On 2/23/2025 3:02 PM, cheater cheater via Synth-diy wrote:
> Another thing I've been thinking about recently is vacuum tube manufacture.
>
> - cnc mill a metal envelope
> - cnc mill stamp and forming dies for various electrodes
> - rather than use glass envelopes with integrated vacuum extraction
> tubes, which is difficult and requires a large workshop, use a
> two-part metal envelope. put the unsealed tube in a vacuum chamber,
> and using basic (for today) robotics, press the tube's top and bottom
> together, maybe folding it over like a can lid. or weld it together.
>
> I wonder how small one could make tubes at that point, if all that was
> desired was a signal tube and not any sort of power handling at all.
>
> One could experiment with different electrode configurations.
>
> Just shooting the breeze.
>
> On Wed, Feb 19, 2025 at 10:25 PM cheater cheater
> <cheater00social at gmail.com> wrote:
>> I was wondering what people would use a CNC mill for if they had one,
>> for synth diy stuff. It seems like almost all the hardware is already
>> easily available or made.
>>
>> I know front panels are one suggestion (eg one manufacturer makes
>> front panels out of brass) but I'm sure there are other, maybe even
>> more creative, uses of a CNC mill, so I'm curious.
>>
>> Injection molds for light pipes? Gear systems for concentric
>> potentiometers? Surprise me.
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