[sdiy] Designing control surface, potentiometer heights?

[Ullrich Peter]

Some multimeter manufacturers made their special mode switches this way, But I wouldn't 
recommend that - and I bet it would be too expensive - even if you  order China...

some examples:
http://www.eevblog.com/forum/testgear/ebay-gossen-metrahit-2-neglected/ (middle of the page)
https://softsolder.files.wordpress.com/2012/09/img_2331-multimeter-range-selector-switch.jpg
http://www.faqs.org/patents/img/20120103765_01.png

Ciao
Peter

http://www.ullrich.at.tt

-----Ursprüngliche Nachricht-----
Von: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-bounces at dropmix.xs4all.nl] Im Auftrag von Jack Jackson
Gesendet: Dienstag, 17. Februar 2015 14:27
An: Sdiy
Betreff: Re: [sdiy] Designing control surface, potentiometer heights?

Hmm,

I had considered manufacturing my own as it's quite a basic electromechanical part with few components.

One could use 2 side PCBs as the wafers and the contain them in a 3d printed box with 3d printed shaft. If the box was designed like the internals of a Lorlin, the clicks could come from 2 balls and a spring.

Not sure what you would use to bridge the contacts. I suppose fashion a piece of metal.



----------------------------------------
> Date: Tue, 17 Feb 2015 13:05:37 +0000
> From: admin at bugbrand.co.uk
> To: synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] Designing control surface, potentiometer heights?
>
> Yep -- Lorlin type rotaries are too f'ing tall for me -- there are 
> quite nice Alpha ones for not too much $$$ available through Mouser (I 
> now use Song-Huei equivs which are even more affordable but MOQ is 
> 1000
> pieces..) - only shame being that you can't change the number of stops 
> like on the Lorlin type Alpha SR1712F is, I think, what I meant 
> (search via Mouser) - but hmm they're not so cheap... and I'm sure 
> they had them with spline-shafts...
>
>
> On 17/02/2015 12:57, Ullrich Peter wrote:
>> You could use rotary switches from Knitter-Switch instead oft he big Lorlin types...
>>
>> MRS12:
>> http://www.knitter-switch.com/ger/Series/141
>>
>> MRS18:
>> http://www.knitter-switch.com/ger/Series/142
>>
>> Ciao
>> Peter
>>
>> http://www.ullrich.at.tt
>>
>>
>> -----Ursprüngliche Nachricht-----
>> Von: synth-diy-bounces at dropmix.xs4all.nl 
>> [mailto:synth-diy-bounces at dropmix.xs4all.nl] Im Auftrag von Jack 
>> Jackson
>> Gesendet: Dienstag, 17. Februar 2015 13:48
>> An: Sdiy
>> Betreff: [sdiy] Designing control surface, potentiometer heights?
>>
>> So I'm designing a control surface (Pots/sliders/switches/front 
>> panel). I want everything to be PCB mounted for ease of construction 
>> and reliability. A problem I've found is the body of the pot/switch 
>> before the shaft/actuator can vary greatly in height. So my rotary 
>> switches (Lorlin type) are 20mm or so high in the body, whereas the 
>> pots and sliders are only around 7mm. See the link for an 
>> illustration in CAD: - https://flic.kr/p/qhipLE
>>
>> The only solutions I can think of are to make 'scaffolding' PCBs around the same footprint as the pots/sliders to increase the height of them and bring them in line with the switch, or to mount them on a separate PCB and put holes through for the switches to go through.
>>
>> Any thoughts?
>>
>> Best Regards,
>> Jack
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