Doepfer

It is sometimes desirable to have a joystick snap back to the zero
position.  It is also sometimes desirable for it to stay where it is
without having to hold it.  Can we have both?  What about a locking
joystick-- A spring-loaded joystick which also has a mechanical lever
or knob that can lock the joystick in its current position.  Perhaps
if crafted right it can have variable resistance, so that one setting
counteracts the springs but still allows the stick to be moved by
hand, and a tighter setting more solidly locks it in place.

The non mechanical way to do this is with a dual track and hold module that would allow the position of a spring loaded joystick to be saved where it is positioned. having a lag circuit after the track and hold would allow a smooth transition when coming out of the held voltage to the tracked one. I have never seen a locking joystick so that avenue would be a true DIY route.
-James

On Dec 17, 2009, at 9:44 PM, Monroe Eskew wrote:

> It is sometimes desirable to have a joystick snap back to the zero
> position.  It is also sometimes desirable for it to stay where it is
> without having to hold it.  Can we have both?  What about a locking
> joystick-- A spring-loaded joystick which also has a mechanical lever
> or knob that can lock the joystick in its current position.  Perhaps
> if crafted right it can have variable resistance, so that one setting
> counteracts the springs but still allows the stick to be moved by
> hand, and a tighter setting more solidly locks it in place.
> 
> 
> ------------------------------------
> 
> Yahoo! Groups Links
> 
> 
>

Or you can simply buy two joysticks - this is the solution Dieter approves of. 




________________________________

From: "james.husted@mac.com" <james.husted@mac.com>
To: Doepfer_a100@yahoogroups.com
Sent: Friday, December 18, 2009 0:58:09
Subject: Re: [Doepfer_a100] joystick idea

  
The non mechanical way to do this is with a dual track and hold module that would allow the position of a spring loaded joystick to be saved where it is positioned. having a lag circuit after the track and hold would allow a smooth transition when coming out of the held voltage to the tracked one. I have never seen a locking joystick so that avenue would be a true DIY route.
-James

On Dec 17, 2009, at 9:44 PM, Monroe Eskew wrote:

> It is sometimes desirable to have a joystick snap back to the zero
> position.  It is also sometimes desirable for it to stay where it is
> without having to hold it.  Can we have both?  What about a locking
> joystick-- A spring-loaded joystick which also has a mechanical lever
> or knob that can lock the joystick in its current position.  Perhaps
> if crafted right it can have variable resistance, so that one setting
> counteracts the springs but still allows the stick to be moved by
> hand, and a tighter setting more solidly locks it in place.
> 
> 
> ------------ --------- --------- ------
> 
> Yahoo! Groups Links
> 
> 
> 


 


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[Non-text portions of this message have been removed]

> It is sometimes desirable to have a joystick snap back to the zero
> position.  It is also sometimes desirable for it to stay where it is
> without having to hold it.  Can we have both?  What about a locking
> joystick-- A spring-loaded joystick which also has a mechanical lever
> or knob that can lock the joystick in its current position.  Perhaps
> if crafted right it can have variable resistance, so that one setting
> counteracts the springs but still allows the stick to be moved by
> hand, and a tighter setting more solidly locks it in place.


Good idea, but one has to find a manufacturer who offers such a unit. As far
as I know all module manufacturers including us do not have an in-house
mechanical production. They purchase all mechanical and electromechanical
parts (like potentiometers, knobs, switches, sockets, cases, front panels
and so on) from specialized external manufacturers. I've never seen a
joystick with the mentioned locking option.

Best regards
Dieter Doepfer

I like the basic idea of the function. But I could imagine that a 
solution should be made on the electronic level but not at the 
mechanical level. I think about a module named "track&hold & change by 
catch up" ;-)

Principle: the incoming voltage is given to the output until a trigger 
(external or from a button on the module) happens. This trigger causes a 
"hold" of the voltage. The voltage is held until the value of incoming 
voltage "crosses" the stored value. It might be possible on analog 
level, but would be assumingly easier with a digital solution.
A thinkable extensions might be:
* first trigger holds, second trigger enables the catch up change.
or
* first trigger holds, second trigger gives the voltage free immediately 
(this can be achieved by existing modules already).


Florian

This company may offer it, with their "friction clutch" option:
http://www.chproducts.com/oem/finger_resistive.html

Though I'm not sure what they mean by that exactly.

On Fri, Dec 18, 2009 at 12:40 AM, <yahoo@doepfer.de> wrote:

>
>
> Good idea, but one has to find a manufacturer who offers such a unit. As
> far
> as I know all module manufacturers including us do not have an in-house
> mechanical production. They purchase all mechanical and electromechanical
> parts (like potentiometers, knobs, switches, sockets, cases, front panels
> and so on) from specialized external manufacturers. I've never seen a
> joystick with the mentioned locking option.
>
> Best regards
> Dieter Doepfer
>
>  
>


[Non-text portions of this message have been removed]

That sure looks like what the Doctor ordered -
Friction Clutch
When released, the joystick does not mechanically return to center, maintains present position. Available only with Standard Resistive joysticks.

Those things sure do LOOK expensive for sure though.

On Dec 18, 2009, at 10:23 PM, Monroe Eskew wrote:

> This company may offer it, with their "friction clutch" option:
> http://www.chproducts.com/oem/finger_resistive.html
> 
> Though I'm not sure what they mean by that exactly.
> 
> On Fri, Dec 18, 2009 at 12:40 AM, <yahoo@doepfer.de> wrote:
> 
>> 
>> 
>> Good idea, but one has to find a manufacturer who offers such a unit. As
>> far
>> as I know all module manufacturers including us do not have an in-house
>> mechanical production. They purchase all mechanical and electromechanical
>> parts (like potentiometers, knobs, switches, sockets, cases, front panels
>> and so on) from specialized external manufacturers. I've never seen a
>> joystick with the mentioned locking option.
>> 
>> Best regards
>> Dieter Doepfer
>> 
>> 
>> 
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
> ------------------------------------
> 
> Yahoo! Groups Links
> 
> 
> 



[Non-text portions of this message have been removed]