My boards just shipped as well. My Tayda order arrived just 3 days after ordering itD.Tilbury wrote: ↑Sun Mar 01, 2020 5:02 pmI would be interested in a colab.
I am a ways behind you tho...my boards just shipped and I am trying to determine my panel layout now. What are you using to layout your pcb? Its been several years since I've done board layout work and i dont have access to the software I used to use. I think i used EAGLE, Altium (wow thats expensive), and something called multisim/ultiboard.
What are your plans for the board? Sizing, enclosure, etc...?
I would really like to use ribbon cables and shrouded terminal idc style connections so they stay put and look clean connecting from board to board. You have 7 sets of mods there. I would need to look at the board and layout of the main unit to see how they would connect. How do we incorporate this into the circuit?....bypass each of these from the board to the "mod" board then from there route through trace to the 1p8t which interfaces the values you have here?
You can look at the board layout in the infopack from Soma Labs. The "tweaks" section is pretty clear.
I'm planning to put my Lyra-8 in a rack, so I'm aiming for a 19" panel. VCOscillator's build was similar, and I've been wondering whether to put the tweaks on each side, as he did, or perhaps in a row below, or on one side. I priced out panels done in Aluminum pcb with ENIG, and 5 panels came to almost $400...
My plan was to replace each component on the Lyra board with a pluggable header, and then route them to a ribbon connector on the expansion board (s). I was also debating doing this in SMD to save space...the question is whether or not to mount the expansion PCBs the same way as the original Lyra, or make them small expansions with wires to panel-mounted pots and switches, which would allow some different form factors for folks. But panel mount switches are a bit pricier and harder to find than pcb, although slider switches with long sliders are waaay hard to find...panel with short might be easier.
If this is something that a few people want to do, I can get really good prices on bigger quantities through my work...as long as we settle on a switch. Rotary are far more expensive, but drilling holes in panels is way easier than slots. And that's where a remote-mounted breakout board makes sense, as people can choose to use rotary or slider as they prefer. I'm also considering thumbwheel switches, if I can find ones I like.
For board design, I'm happy with eagle or fusion or kicad, but I was actually going to use EasyEDA...easy to collab on that, too. I have a pretty good relationship with JLCPCB, as they make boards and do pick and place for my employer. If we do SMT, we can get a quote on having the resistors and caps placed by them. The last time I did this on a 15 board run, the bare boards (200mm x 110 mm) were $6.80 each, and with the components placed (60 pcs) they came to $11.78 each. I still had to do the headers, ICs, and switches myself, but placing 900 bits of birdseed would have been less fun!
Any comment on the values I chose? I'm not all that familiar with how they will actually sound...hopefully VCOscillator will chime in here, if he has time to take away from Flux!