<br> ##Nine FETs, surface mount, ribbon cable connector. ###Eagle files and traces. ####Original board, in which wire needs to be added to connect grounds. These files are at 1000 dpi resolution. When imported into mods, these files give a result that is two times too large. The dpi in the mods window needs to be set to 2000 dpi to make the board come out at the right scale.  [Eagle board](./FET_Mux/FET_mux.brd) [Eagle Schematic](./FET_Mux/FET_mux.sch) [png traces](./FET_Mux/traces.png) [png outline](./FET_Mux/bottom.png) ####Two-layer board, in which ground connection is made using holes, rivets and soldering to a bottom ground plane.  Use a two-layer circuitboard. Note that all the two-layer files are 2000 dpi resolution. When imported into mods, these files give a result that is two times too large. The dpi in the mods window needs to be set to 4000 dpi to make the board come out at the right scale. [Eagle board](./FET_Mux/FET_mux_2layer.brd) [Eagle Schematic](./FET_Mux_/FET_mux_2layer.sch) [png traces](./FET_Mux/traces_2layer.png) Run with 1/64" endmill. Set at 4000 dpi. [png holes](./FET_Mux/holes_2layer.png) Run this with 1/32" endmill. Set at 4000 dpi. [png outline](./FET_Mux/bottom_2layer.png) Run this last with 1/32" endmill. Depth 1.55 mm. Set at 4000 dpi.  Here's the board, milled, and rivets soldered to ground points.  Here's a sketch explaining the layout and routing of current to (up to) nine actuators.