[sdiy] Designing control surface, potentiometer heights?

[Jack Jackson]

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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