Muff's Modules & More

Tombola · Last edited by Tombola on Sun Sep 30, 2012 4:25 pm; edited 11 times in total

The BUILD THREAD part starts here: Discussion of parts, issues, help: http://www.muffwiggler.com/forum/viewtopic.php?t=60740&postdays=0&post order=asc&start=120

NB: If your board is marked "Rev 2", then please read this addendum before building.
If you have a "Rev 2.1 (cap fix)" board, build according to silkscreen & instructions

http://vimeo.com/42939320

This is an update from this thread about my DIY random looping sequencer.

Hopefully the video explains what it does - it's a looping shift register sequencer, inspired by Ken Stone's Gated Comparator and Grant Richter's Noise Ring. It can loop for ever or be completely random, with CV control over the random vs loop-iness. You cannot program it to play specific tunes. You cannot save sequences. You can never go back to a sequence that has changed. It’s designed as a sequencer that you can steer roughly in one direction or another.

+ it makes a crazy wavetable wave shaper when clocked at audio rates

I built it as a Eurorack module, 10hp, very shallow, around 40mA.

How to get PCBs, panels and parts: The pcb and all the documents are Creative Commons licensed. You can make them, sell them, modify them, so long as you share your changes and mention me (Tom Whitwell)

Here is the Random sequencer project page, or jump straight to the Random Sequencer PDF Documentation, with block diagram, schematic, BOM etc.

I'm not selling PCBs myself. I got mine made by iTead studio in China. Just £17 gets you ten boards shipped to London in about 3 weeks (ie £1.70 per board!) Full details, the ready-to-post gerber PCB files, a £15 Mouser BOM and the files for laser cut acrylic panels are in Getting the parts to build a random sequencer. With luck, the whole thing could cost less than

ultrashock · Posted: Sat Jun 02, 2012 9:38 am Post subject:

wow! really cool project and nice alternative (or stab in the back hihi

) to Malekko/Wiard Noisering.
Thanx for sharing! Guinness ftw!

Pfurmel · Posted: Sat Jun 02, 2012 9:45 am Post subject:

Cool, might see if I can modify the layout and etch a pcb for this.

diablojoy · Posted: Sat Jun 02, 2012 9:50 am Post subject:

really interesting sequencer
might have build one thumbs up

Rod Serling Fan Club · Posted: Sat Jun 02, 2012 9:53 am Post subject:

That's great Tombola. It's admirable that you are sharing your work.

I really dig the acrylic panel with the flashing light strip.

jenamu6 · Posted: Sat Jun 02, 2012 10:03 am Post subject:

Groupbuy for the PCB?

mckenic · Posted: Sat Jun 02, 2012 10:44 am Post subject:

Oh my LORD!

WoW!

haima · Posted: Sat Jun 02, 2012 10:50 am Post subject:

Very nice

The "lock" function is awesome - obviously it's something a lot of people wish the noisering had (not to diss the noisering though, it's got it's own thing going on).

Thanks for sharing!

xerxl · Posted: Sat Jun 02, 2012 11:30 am Post subject:

A groupbuy would be great. I don't know anything about these file types and I'm a bit hesitant to try to order these by myself.
You probably realize that I'm pretty new to this diy but I'd love to give it a try.

ATOM · Posted: Sat Jun 02, 2012 11:41 am Post subject:

Will this work on a 15volt supply?

ATOM

BananaPlug · Posted: Sat Jun 02, 2012 12:14 pm Post subject:

Tombola · Posted: Sat Jun 02, 2012 12:20 pm Post subject:

spotta · Posted: Sat Jun 02, 2012 12:34 pm Post subject:

nickster · Posted: Sat Jun 02, 2012 1:32 pm Post subject:

Interesting w00t

FetidEye · Posted: Sat Jun 02, 2012 1:33 pm Post subject:

great!
i'm in for a groupbuy

amsonx · Posted: Sat Jun 02, 2012 1:37 pm Post subject:

MrDys · Posted: Sat Jun 02, 2012 1:41 pm Post subject:

Tombola · Posted: Sat Jun 02, 2012 1:53 pm Post subject:

Just to cross post how cheap & easy it now is to order your own PCBs from China: (from this page)

PCBs: £17 ($27.10) for ten boards, inc global shipping

1. Go to iTead studio’s PCB Prototyping service

2. Buy “Green 2 layer 5cm * 10cm Max 10pcs” for $22. This is the cheapest option. You can also choose coloured boards for a few dollars more. There's also a dropdown to chose the finish. ROHS (lead free) is an extra $5. Gold plating (ENGL) is an extra $15.

3. Once you get a confirmation email, send this file: Random Sequencer v2 Gerbers file to pcb@iteadstudio.com with the order number in title. I've done this with these exact files and it works fine. If they ask about 'outlines' reply 'they're in every layer'. That's the only question they've ever asked me.

4. My last order arrived in London in less than 3 weeks and cost a total of £17 - that's £1.70 per board. Sell or give away any spare PCB you end up with.

The slightly trickier bit is the panels!

monstrinho · Posted: Sat Jun 02, 2012 2:47 pm Post subject:

Just curious if you had thought of giving the "write" switch a jack that would accept a trigger/gate input? I don't know if this is possible, but it seems like it would be interesting to synchronize the "write" selection...

Tombola · Posted: Sat Jun 02, 2012 3:01 pm Post subject: