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latigid on

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  1. Moogertron Mk II

    in Miscellaneous

    Posted · Edited by latigid on

    Moogertron is my brother's and my project for unifying Moogerfoogers. At the moment, they represent great analog effects, but the case design is very bulky.

    Mk I (which is best explained by linking to another forum, sorry: link) was not bad, but very heavy. Also, the patchbay method of wiring CV has its problems because some of the sockets have normalled connections, making some unstable signals.

    So hopefully this is of interest to somebody. I know it's more of a hack than a design, but obviously my skills lie elsewhere :wink:

    It's a bloody big panel anyway.

    Edit:

    Sorry, pic links in the Gallery:

    med_gallery_5453_45_39326.jpg

    med_gallery_5453_45_940.jpg

  7. MBBLM schematics and PCB discussions

    in MIDIbox BLM

    Posted

    TK said a little while back that SMD LEDs would be useful in the BLM.

    The matrix/PC tracks would be a little easier to route.

    Probably looking a multi-layered board or many, many vias for through-hole LEDs.

    So, what are we talking for Livid spacers and conductive rubber sheet?

    8x8 rubber = $30 x 4 = $120

    4x4 spacer = $8 x 16 = $128

    Plus panel and PCB. Plus LEDs etc.

    Bulk discount would go to less than $300? I'd be in :)

    P.S. there's some fantastic rendering going on :wink:

  13. How to begin from scratch

    in MIDIbox SEQ

    Posted

    Of course, to do this you need some kind of "tool". Like a hardware or software DAW. But the MB-SEQ seems to be the ultimate tool for creating step sequenced bass, melodies, drums -- anything really!

    For the OP, you can buy nearly everything you need for SEQ via SmashTV's webshop: http://avishowtech.com/mbhp/buy.html

    You assemble modules likesuchas DIN, DOUT and CORE32 then link them with ribbon cables. You then need encoders, knobs, buttons, LEDs and two LCDs. The hard part IMO is making a panel and user interface which looks pretty and works straight away. It's not impossible, but because the different components have different heights, you need to layout everything on veroboard and add spacers to make it all level.

    Fortunately there is a solution which has been very kindly "ready-made" by Wilba. Basically everything needed for the SEQ is mounted on one board, including a full control surface. Also, the shift registers which scan buttons or encoders, or drive LEDs are multiplexed together, meaning you need less of them.

    This is certainly the easiest solution and the one I am pursuing after having most of my components for 2 years and not getting the darn thing finished! :whistle:

    The only trouble is the PCBs are not widely available. This is due to people having actual lives and not spending all their time helping others on this forum. I have my panel in the post from "julianf" and will jump on a PCB when I see one. One day I'll be done too :)

    If there's any other info you need, try searching this forum or uCApps first. You'll learn a lot this way.

  16. MBHP_ETH, MBHP_SDCARD, SSM2044, SSM2164 PCB Bulk Order

    in Bulk Orders

    Posted

    This is the one I've put together, haven't ordered yet - I'll probably put it in with parts for a 16x16 BLM. Might be best if you check it, in particular I think I wasn't sure of the Magjack.

    Ethernet IC 579-ENC28J60/SP 1 $4.90 $4.90

    magjack? 523-RJHSE-5381 1 $1.58 $1.58

    25mhz crystal 695-HC49US-25-U 1 $0.78 $0.78

    ceramic cap 18pF 140-50N2-180J-RC 2 $0.10 $0.19

    ceramic cap .01uF 140-50Z5-103M-RC 2 $0.14 $0.27

    ceramic cap .1uF 140-50U5-104M-RC 3 $0.30 $0.89

    tantal cap 10uF 80-T351E106M16AT 1 $0.70 $0.70

    electrolytic 100uF 140-LLRL16V100-RC 1 $0.46 $0.46

    2.32kohm metal film 1% ¼ watt 271-2.32K-RC 1 $0.18 $0.18

    49.9ohm metal film 1% ¼ watt 271-49.9-RC 4 $0.18 $0.70

    220ohm metal film 1% ¼ watt 271-220-RC 2 $0.18 $0.35

    ferrit bead 10uH 434-22-100 1 $0.27 $0.27

    2x5 header 517-30310-6002 1 $0.55 $0.55

    I'll be in! Cheers! Maybe one day I'll have an actual use for MB_ETH :thumbsup:

  17. MBBLM schematics and PCB discussions

    in MIDIbox BLM

    Posted

    If it were 2 pin duo led's (example http://www.betlux.com/product/LED_lamp/Dual%20Color%20LED(2Pins)/BL-L517.PDF )

    Then it was easy to use the switch with transsparent cap.

    Is a 2 pin duo led even possible?

    Yes, but it's more like two diodes arranged back-to-back. Unfortunately you can't then use both LEDs at the same time, so you couldn't have a third "orange" state. The addressing of each LED state becomes a bit tricker too (I think).

  23. MBBLM schematics and PCB discussions

    in MIDIbox BLM

    Posted · Edited by latigid on

    Using your Ikea case idea the approximate size is 30 cm EDIT: by 40 cm. So approx. 7 rack units, plus a Wilba/TK SEQ is 10. That's quite a bit of real estate, and I'm wondering whether the SEQ belongs in the rack (MIDI'd to your synths) and the BLM on a keyboard stand/ table/ hand-held as a real performance instrument.

    Plus, it's gonna be battery powered and WLAN MIDI'd right? ;)

    I'd say people will have a lot of opinions on which buttons to use, my humble suggestion is to keep the layout as general as possible so peeps can choose. SPST tact switches usually have 200 mil pin spacing, correct?

  24. Ponoko front panel for Wilba's control surface pcb

    in MIDIbox BLM

    Posted

    Maybe not the place to discuss this, but I was under the impression the BLM project was a cost-saving exercise, i.e. using ordinary tact switches with home-brew buttons ("feet") and RG LEDs to shine through, all on a double layer PCB of course! :)

    I was only asking of yours as you seem to be using the same switches and LEDs throughout the whole design.

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