DIY blanks

Modular and other sound devices from BugBrand.

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Kafgee
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DIY blanks

Post by Kafgee »

I thought we could start a thread for diy
Modules exchange ideas and simple instructions .
I for instance have made a diy Chirper expansion
following Toms Instructions :hyper:
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T. Jervell
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Post by T. Jervell »

Cool! :yay:
k_bntzn
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Post by k_bntzn »

Totally forgot about chirper expansion points. Will have to look into this soon. What preamp for the filter input is recommended here? Any link to a schematic would be appreciated. :tu:
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chrisdermo
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Post by chrisdermo »

did one of these threads a while back
viewtopic.php?t=198594

here's a few things I've DIY'd

Some switchable capacitors and diodes, and format jumblers:

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4MS RCD (now dead :ripbanana:)

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Quick and dirty build of Bill's tiny mixer from this thread
viewtopic.php?t=202957&highlight=[img]h ... 1351_1.png[/img]

I also did a chirper expander, DRM1 expander and rehoused a Stroh Optograte and FSS Convulsion generator. Pics of those around here somewhere... :hmm:
WTB / WTTF: Bugbrand PRC2B, ENV1

Current Bugs frame:
https://www.modulargrid.net/f/racks/view/1340165
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Kafgee
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Post by Kafgee »

:yay: Nice one Chris !
Let’s have all of these in one thread



I did not use any preamp on the filter input
Just a 30k resistor like described

I followed the instructions Tom has on the Chirper
Page .

Just click the link where it says pdf instructions
k_bntzn
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Post by k_bntzn »

So what does the pot for level do? I guess for modular levels it is ok to go straight into the input but i believe Tom recommended a preamp for line levels. Will have do do some experiments someday and see how it works.
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phisynth
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Post by phisynth »

sungja wrote:So what does the pot for level do?
probably a simple passive attenuator ?
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Kafgee
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Post by Kafgee »

Yes simple attenuation
I might try putting an Opamp/resistor configuration
To try exterior signals and will let you know of the results
k_bntzn
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Post by k_bntzn »

Did the soldering for expander points yesterday and thought i play around with it some more today. Now the filter mix knob is dead. :deadbanana:

What happened?
k_bntzn
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Post by k_bntzn »

So i managed to short the lp output with the mix knob on the other side of the board. :hihi:
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Kafgee
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Post by Kafgee »

:bananaguitar: nice one Sungj[/img]a
What did you think of the result?

I will try to do the mixer tha Chris posted next
k_bntzn
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Post by k_bntzn »

Well i did not try the expander points just yet. I got a case for it today and i just fired up the chirper for a quick test. If i find some time later today i will try it out but we will see.

Thanks for reminding me about the expansion points. :tu:
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lud
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Post by lud »

Has anyone ported any Nonlinear circuits modules to frac? They would be so fun with the Bugs.
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soup
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Post by soup »

lud wrote:Has anyone ported any Nonlinear circuits modules to frac? They would be so fun with the Bugs.
Most of the NLC stuff wants 12v, his sauce of unce can be built to run on 15v...
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lud
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Post by lud »

Beautiful work! Is that yours soup?
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Kafgee
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Post by Kafgee »

:hmm: is that diy?
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soup
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Post by soup »

Thanks. It is one of my diy builds, I try to have fun with the designs. It's fairly easy to make your own panels but the new 2fw blanks open up a lot of possibilities as there's quite a few cool diy pcb's that will fit behind a 2 fw panel.

Regarding expanders this was my first frac build, a COFilter<>Octatrack expander...
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KNYST
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Post by KNYST »

Top: Easel Random Voltage Source
Bottom: Fonik Sequential Switch (bi-directional)

Built it in 2013. Seqswitch board is behind the panel and the RVS board is mounted in the case... :)

Image Image
NOISE HEALS.
patch responsibly.
LISTEN | WATCH
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soup
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Post by soup »

KNYST wrote:Top: Easel Random Voltage Source
Bottom: Fonik Sequential Switch (bi-directional)

Built it in 2013. Seqswitch board is behind the panel and the RVS board is mounted in the case... :)
That's rad! I made one of those sequential switches too, they're great little modules...
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rico loverde
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Post by rico loverde »

your panels are great Soup!!!! absolutely love them.
works for Darkplace Manufacturing
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Kafgee
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Post by Kafgee »

Soup how do you make the panels?
They are great 8-)
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soup
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Post by soup »

The panels are laser cut 3mm acrylic with the engraved bits infilled with paint pen. They run about $10 apiece.
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Kafgee
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Post by Kafgee »

Soup one last q
Where do you draw the panel
Prior to laser cutting? :hmm:
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soup
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Post by soup »

I design my panels in an ancient, outdated copy of illustrator but any vector graphics program will work fine. Just a simple .eps file is needed to laser cut, one color means cut, another engrave etc. If you want an example here is the file for the sequential switch in ponoko's format (my local laser place)...
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Kafgee
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Post by Kafgee »

Cheers soup :nana:
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