The panel designs I'm working on won't be that cramped. They'll have
the same jack size and spacing as MOTM. The space savings will come
from using smaller knobs.
I measured the vertical distance from the top mounting hole to the
center of the first pot on the Encore UEG. Assuming I use a similarly
small diameter pot, it turns out that I can fit eight rows of panel
parts, spaced 1-inch apart, in the 5U high panel. The horizontal
spacing is 7/8-inch. In other words it is the MOTM jack grid extended
all the way to the top. I realized today that I can fit two CGS Slope
Detector modules into a 1U panel with this approach.
Richard
poppaneedsanap wrote:
> for me, half the point of me getting into 5U format and away from Euro was the appeal of large uncramped modules..
> to each his own though..
>
> I do like the idea of an all CGS synth though!
> -L
>
> --- In ModularSynthPanels@yahoogroups.com, Richard Brewster <pugix@...> wrote:
>
>> I uploaded a couple of FPD files that I designed today. The idea was
>> instigated by a fantasy I had about building a CGS-only synthesizer,
>> optimizing for panel space. I wanted to use the 5U by 1U MOTM panel
>> size for compatibility with my cabinets. I thought about using small
>> jacks like Blacet, but quickly realized that the panel space hog in MOTM
>> format is the large knobs, and that I could still use 1/4 inch jacks. I
>> started playing around with some small diameter Alpha pots and
>> discovered that they fit in a matrix of 1-inch vertical separation by
>> 7/8-inch horizontal separation (the same spacing as the jacks on a MOTM
>> panel). This meant that the pots can line up directly above the jacks.
>> The only thing sacrificed is tick marks. The same small Alco knob used
>> in the Tellun and Encore panels fits here. Comparing the Tellun
>> staggered pot spacing, I realized that it seems the main reason for
>> staggering is to accommodate tick marks. Giving up tick marks allows a
>> 1U MOTM panel to fit a combination of 6 pots and 8 jacks, or 8 pots and
>> 6 jacks, with room for a couple of switches or LEDs in between. Using
>> this format, I was able to pack a CGS 21 Super Psycho Modulation Source
>> into a 1U panel. It has 8 pots, 7 toggle switches and 1 jack. (Looks a
>> little tight at the bottom, but should work.) It's similar to the photo
>> on the CGS site, but omitting two switches and the LEDs. LEDs might be
>> squeezed in, too, but I'm not a really big fan of LEDs. I never built a
>> Super Psycho Modulation source, because of all the panel real estate
>> required in regular MOTM format.
>>
>> As a second example, I put a CGS 38 and CGS 52 both into 1U using this
>> template. I made some others as well, such as a dual CGS 64 VCA and the
>> CGS 77 Serge VCF.
>>
>> The jack placement in most of these designs can take the 3-Jack bracket
>> from Bridechamber for mounting the PC boards. I haven't figured out yet
>> how to mount the CGS 21 PC board on the panel with one jack.
>>
>> Richard Brewster
>> http://pugix.com
>>
>> Sitting here under two feet of snow in central Virginia, USA.
>>
>>
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