So Jim's epic double mash thread has me thinking of new and exciting ways to use my new single vessel mash and boil. This would also apply to the robobrew/grainfather etc. Here is my thought, please let me know if this sounds right or if anyone does it. I will have to do some math on the limit of the system to see if I can even do a decent gravity no sparge.
1. First round of grain goes in mashes regularly, basically max out water to grain ratio.
2. Lift basket to drain and set it aside in a bucket.
3. Boil first beer.
4. Put basket back in kettle, add a little bit of grain/specialty malt as needed.
5. Mash again, lift, rinse, repeat.
I don't see why it wouldn't work, and since the first beer doesn't get sparged there should be quite a bit of sugar left over. Theoretically all you would need is a M+B style system and an extra bucket.