Building a fpga rig is very straightforward. This is what you do:
1. Buy one or more of the fpga products, ie, BFL bitforce, Icarus, or modminer quad. If the company doesn't sell them anymore you will need to buy from another person.
2. Plug them into your computer's USB port. Buy a hub if you run out of ports.
3. Join a mining pool and run the mining software.
You now own an fpga rig.
Ok... I already know this... What I want to know is
where do I buy the damn thing? I'd prefer to do business with an established company with a track record than a stranger on the web. Every day I spend a good 1-2 hours "Googling" FPGA miners and can't find anywhere to order one. Looks like no one makes them anymore.
The second thing I want to know about is building my own from parts... How/where do I acquire the correct parts/chips and where can I learn more about building them.
Those are my questions. Not how to plug in a USB cable or open my DVD drive.
Our Cairnsmore1 is still available as a grade-B. Don't be put off by the grade-B as most of these are 760-840MH/s running a Glasswalker build. It's here
. I will say that we won't ship anything now until 3rd January as we are effectively shut down now for Christmas and New Year.
If you just want to tinker with FPGAs most bitcoin mining boards are not very good boards to learn FPGA design and programming. Many use XC6SLX150 FPGAs and these need a full expensive toolset to build a design. If you want to do some basic learning have a look at boards like our Polmaddie range which are aimed at teaching and learning and basically fairly cheap and simple to use.