Hi all, I've just finished the 10 channel ILDA splitter for buffo. This will hopefully make a great addition to FLEM and SELEM meets.
The splitter, individually buffers +X/+Y -X/-Y, R, G, B and shutter. There are 20 four channel op-amps to handle buffering of the 80 signals. The interlock is handled by the interlock board which has 10 individual relays. If Pangolin, or another controller that shorts pins 4 and 17 is attached, then the relays on the interlock board all close. If anything else is attached that doesn't support the interlock loop, there's a manual switch to close all the relays. Status of the relays is indicated by an LED on the front panel. The X/Y board offers limited control over size of X and Y when running differential, and total control over size of X and Y when running single ended. The back panel of the box has switches in place for channels 1-5 to invert the X axis.
The RGB board offers control over the brightness via individual pots (RGB). The output is clamped to prevent a signal in excess of 5V.
The front panel gives control to manually open a shutter, turn off a shutter or automate a shutter from the controller (pangolin). You can also individually turn on R, G, or B in any of the 10 projectors attached. The switch to the right changes the input to the X/Y board from the controller to an internal quadrature square wave generator, I used a modified version of Steve's Walking Ring counter.
That's it, can't wait to see how it works with 10 projectors attached!