[sdiy] PCB mount components (was: using off the shelf pcbs in a commercial project)

[Justin Owen]

-----Original Message-----
From: Dan Snazelle [subjectivity at hotmail.com]

>problem with that though is getting all the rotary's to line up right with the boards. and the rotary's arent usually board mountable are they?

You can get rotary switches (and pots, etc) with PCB mount pins. For the last thing I built I had a top board with all the rotary switches, LEDs and Pots (normal pots but with short leads running to SIL connectors on the PCB) mounted to it and a bottom board with all the components on - then you just need to run connectors from top board to bottom board. (he says making it sound simple...)

Yes - aligning the pins on the PCB and the components with the holes in the front panel takes some planning (is a PITA)  and the time I saved in wiring rotarys was used up with laying out the PCBs - and I do also have access to good graphic/layout software.

Which method is easier/better? Ummmm...

>the wiring is going to suck.

Right.

> it wont be impossible though right?

Right - and it sounds like it'll be awesome when it's done...

J



--------------------------------------------
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> CC: pfperry at melbpc.org.au; synth-diy at dropmix.xs4all.nl
> From: tom at electricdruid.net
> Subject: Re: [sdiy] using off the shelf pcbs in a commercial project
> Date: Fri, 15 Aug 2008 14:57:02 +0100
> To: subjectivity at hotmail.com
>
> Dan,
>
>> tons of routing (i think) for basically a super super powerful
>> guitar effect (no pcb for my routing. thats just going to be a ton
>> of wires isnt it? with tons of buffers-that sounds like a nightmare
>> to figure out. but i will figure it out. it will be easier once the
>> panel is done and in front of me to put the pots on.
>
> The routing is one place that would really benefit from a PCB, IMHO.
> Wiring up dozens of pots to dozens of boards on the back of a panel
> is a nightmare to do and to debug or fix if anything is wrong. If you
> worked out a PCB layout for this part and put PCB mounting pots and
> CV mixers on the same board, you'd only have outputs from your
> modules on one side, and modulation inputs on the other, with all the
> spaghetti replaced by a board in the middle.
>
> That said, I've bottled out of even this, and am now working on
> modulation routing in software! ;)
>
> Regards,
> Tom
>

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