We are searching metallic fader knobs for a new mixing console design.
Do you know some knob manufacturer ?

Thanks and regards

Silvano

Silvano wrote:

We are searching metallic fader knobs for a new mixing console design.
Do you know some knob manufacturer ?

There's plenty who make plastic fader knobs.

Do you mean metal or 'metallic look' ? Neve had to have their own
extrusion made for *real* metal fader knobs.


Graham

Pooh Bear wrote:
Silvano wrote:

We are searching metallic fader knobs for a new mixing console design.
Do you know some knob manufacturer ?

There's plenty who make plastic fader knobs.

Do you mean metal or 'metallic look' ? Neve had to have their own
extrusion made for *real* metal fader knobs.

Kilo International in Provo, Utah do knobs and fader caps from anodized
aluminum. Reasonably priced, and they will do custom shapes in small
runs. They do most of the knobs on Collins avionics.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

We suppose to need metal knob because we need touch sensitive fader.
We haven't done experiment yet, but I suppose we need a conductive path
between man finger and the chip that does touch sense.
If you have some ideas, please let me know.

Many thanks and regards

Silvano

--


"Pooh Bear" ha scritto nel
messaggio ...
Silvano wrote:

We are searching metallic fader knobs for a new mixing console design.
Do you know some knob manufacturer ?

There's plenty who make plastic fader knobs.

Do you mean metal or 'metallic look' ? Neve had to have their own
extrusion made for *real* metal fader knobs.


Graham

On Tue, 21 Sep 2004 08:32:02 GMT, "Silvano" wrote:

We suppose to need metal knob because we need touch sensitive fader.
We haven't done experiment yet, but I suppose we need a conductive path
between man finger and the chip that does touch sense.
If you have some ideas, please let me know.

Does it need to respond to touch, or to first movement?

CubaseFAQ www.laurencepayne.co.uk/CubaseFAQ.htm
"Possibly the world's least impressive web site": George Perfect

The system does automation value punch-in (start overwriting automation
value) when the technician touch the knob.
It would be possible to compare the position of the knob with the previously
recorded value; if they are different, this means that some external force
(technician one's) is acting on the knob.
Suppose that the fader is flying; I need to oppose its running with force;
the system sense a difference between ideal and real position value and stop
the motor force and enter writing automation value.
But what about punch out ? How can I sense when the technician release the
knob to punch-out and glide to previously recorded value ?

Does somebody have technical experience with touch sense ?

Regards

Silvano



"Laurence Payne" ha scritto nel
messaggio ...
On Tue, 21 Sep 2004 08:32:02 GMT, "Silvano" wrote:

We suppose to need metal knob because we need touch sensitive fader.
We haven't done experiment yet, but I suppose we need a conductive path
between man finger and the chip that does touch sense.
If you have some ideas, please let me know.

Does it need to respond to touch, or to first movement?

CubaseFAQ www.laurencepayne.co.uk/CubaseFAQ.htm
"Possibly the world's least impressive web site": George Perfect

Silvano wrote:
We suppose to need metal knob because we need touch sensitive fader.
We haven't done experiment yet, but I suppose we need a conductive path
between man finger and the chip that does touch sense.
If you have some ideas, please let me know.

Many thanks and regards

I think the cheap "metal look" ones will work too. They are plastic with
a thin layer of chrome plating, but the plating should be conductive enough
to work a capacitive touch sense device.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

In article writes:

We suppose to need metal knob because we need touch sensitive fader.
We haven't done experiment yet, but I suppose we need a conductive path
between man finger and the chip that does touch sense.

Check with a Penny & Giles distributor. Dale Manquen
(http://www.manquen.net) handles them in the US and would be a good
place to start if you can't find a distributor closer to you. He's
mentioned that he carries some metal fader knobs.

--
I'm really Mike Rivers )
However, until the spam goes away or Hell freezes over,
lots of IP addresses are blocked from this system. If
you e-mail me and it bounces, use your secret decoder ring
and reach me he double-m-eleven-double-zero at yahoo

"Silvano" wrote in message ...
The system does automation value punch-in (start overwriting automation
value) when the technician touch the knob.
It would be possible to compare the position of the knob with the previously
recorded value; if they are different, this means that some external force
(technician one's) is acting on the knob.
Suppose that the fader is flying; I need to oppose its running with force;
the system sense a difference between ideal and real position value and stop
the motor force and enter writing automation value.
But what about punch out ? How can I sense when the technician release the
knob to punch-out and glide to previously recorded value ?

Does somebody have technical experience with touch sense ?

Regards

Silvano



I think touch sense is based on changing capacitance in some way when
the knob is touched. To be honest, I can't remember.

The MXR Pitch Transposer uses this to select between presets. Some of
the old analog synths had touch keyboards. EMS and Buchla come to
mind.

Electronotes newsletter has some information on building touch
keyboards... both mechanical and electrical aspects. I think "Getting
Started in Electronics" book written by Forest Mims for Radio Shack
might have a circuit for a touch activated lamp.

Peter

Silvano wrote:

We suppose to need metal knob because we need touch sensitive fader.
We haven't done experiment yet, but I suppose we need a conductive path
between man finger and the chip that does touch sense.

OK, I understand - that's why Neve used metal knobs too for Necam etc...


If you have some ideas, please let me know.

You could use a metal plated plastic knob. I think there are some maufacturers
doing this.

In the UK the obvious suppliers are Re-An and Sifam.


Graham

Silvano wrote:

The system does automation value punch-in (start overwriting automation
value) when the technician touch the knob.
It would be possible to compare the position of the knob with the previously
recorded value; if they are different, this means that some external force
(technician one's) is acting on the knob.
Suppose that the fader is flying; I need to oppose its running with force;
the system sense a difference between ideal and real position value and stop
the motor force and enter writing automation value.
But what about punch out ? How can I sense when the technician release the
knob to punch-out and glide to previously recorded value ?

Does somebody have technical experience with touch sense ?

A little bit - yes. I know the theory and have worked on touch sensitive faders
but never had to design one from scratch.


Graham

In rec.audio.pro,rec.audio.tech, On 21 Sep 2004 11:48:58 -0700,
(Peter B.) wrote:


I think touch sense is based on changing capacitance in some way when
the knob is touched. To be honest, I can't remember.

There's info and circuit diagrams with descriptions of touch-sense
circuitry somewhere on paia.com. In short, it uses standard CMOS 4000
series circuitry and a few caps, diodes and resistors to make an
oscillator in the 100kHz range, and sends that through a resistance to
the touch pad to sense the increase in capacitance when a finger
connected to a human body (about 100pF) touches it. There are probably
a couple of variations on how it's done.

The MXR Pitch Transposer uses this to select between presets. Some of
the old analog synths had touch keyboards. EMS and Buchla come to
mind.

Touch-sense must have been the "in" thing at the time...

Electronotes newsletter has some information on building touch
keyboards... both mechanical and electrical aspects. I think "Getting
Started in Electronics" book written by Forest Mims for Radio Shack
might have a circuit for a touch activated lamp.

Peter

-----
http://mindspring.com/~benbradley