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Re: gEDA-user: Outsourcing PCB layout
Michael Sokolov wrote:
> Hello fellow gEDA/PCB users,
>
> I hope this post is not too off-topic/inappropriate for this list. I
> have an open source hardware design (an SDSL hacking board) that's
> getting close to entering the layout phase, and I will soon need to hire
> someone to do the PCB layout. (I have to outsource it because it's a
> task well outside my skills range.)
>
> Right now I'm just looking for a very rough guess order-of-magnitude
> estimate of how much this is going to cost me, so that I can tell
> whether I can foot that bill on my own or if I'll need to procure some
> sponsorship before this project can proceed. It's a totally non-
> commercial open source hardware design, I share the design freely with
> the world and I'll do the same with the PCB and Gerber files which I'll
> be paying someone to create, and if I do make and sell any physical
> hardware units, I'll sell them for the cost of production without any
> profit margin.
>
> If anyone here does PCB layouts for hire, I would appreciate it if you
> could take a quick look at my summary below and give me a rough
> approximate estimate of how much you would charge to do this layout.
> I would prefer for it to be done in PCB so that the resulting product
> will be in an open source format, but nonetheless my main overriding
> concern is cost, so in the admittedly unlikely case that person A offers
> to do it in PCB, person B offers to do it in some proprietary format and
> person B charges significantly less than person A, I'll have to go with
> person B - but again I think that scenario is very unlikely because I
> would imagine that those into proprietary tools are likely to be more
> commercially-minded, be less friendly to non-profit hobbyist open source
> projects and charge more.
>
> Summary of the board design that needs to be laid out:
>
> * Schematics: 10 B-size sheets; the circuit complexity should be roughly
> equal to that of an average DSL "modem" of the older generation that
> hasn't been shrunk down to one chip.
> * Estimated board size: I would like to fit it into a 130x165 mm 6 layer
> PCB if possible (again matching the average DSL "modem").
> * No BGAs, 3 QFPs, the rest is mostly SOICs, TSOPs and SMT discretes,
> very few TH parts.
> * MC68302 microprocessor (QFP) with 20 address lines and 16 data lines
> wired, non-multiplexed; these buses need to go to two 8 bit wide SRAM
> chips, two 8 bit wide flash chips (covering the 16 bit wide data bus),
> the SDSL transceiver chip (only 8 address lines and 8 data lines) and
> an FPGA (13 address lines, all 16 data lines).
> * A lot of synchronous serial data and clock signals for the SDSL data
> path, including 4 muxes.
> * Mostly digital, but there is a small analog section between the SDSL
> transceiver chip and the jack.
> * No RF, the fastest signals would be the M68K bus which I may want to
> run at up to 25 MHz.
>
> Additional documentation:
>
> Project home page:
>
> http://ifctfvax.Harhan.ORG/OpenSDSL/
>
> Schematics as they stand currently:
>
> http://ifctfvax.Harhan.ORG/OpenSDSL/OSDCU/OSDCU_schem.pdf
> http://ifctfvax.Harhan.ORG/OpenSDSL/OSDCU/OSDCU_schem.ps
>
> The design is done in uEDA, my own offshoot of gEDA which I'm in the
> process of polishing up for release. I don't expect the person hired to
> do the PCB layout to mess with uEDA, but I can export the netlist in the
> PCB format as well as a bundle of PCB elements for all components.
>
> Design spec (very detailed):
>
> http://ifctfvax.Harhan.ORG/OpenSDSL/OSDCU/hwdesign.txt
>
> That's all I have for now. I hope someone is willing to do the PCB
> layout for a price I can afford. :-)
Nice project and thanks for the offering to hire developers that use
free software development tools. I think this is an important step
towards a more complete free software culture.
I can offer you my services to route the PCB layout. The only problem is
I will be available starting from the end of August 2009 before that I
can not free the time.
Also I live in an European country and do this work for a living so I
have to charge a hour rate of around 40 euro to make enough for food and
shelter. I think it will be around a week of work.
Best regards,
Jelle de Jong
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