Here is my schematic so far for my solenoid driver board. The PWM control took up too much space to include on the board due to the limitations of EagleCad's freeware. Each control circuit has two inputs, one for the trigger and one for the PWM power control. I might add in a way to disable the single pulse generator so that you can just trigger it on or off if there is room on the board. However, I can only think of a few instances that would require it as most solenoids will burn out if left on too long. I will post the EagleCad files including the board layout when I am finished.
I was getting to the point where I really needed to build on something. I have numerous pinball parts but have nothing to attach them to. I managed to find some pinball plans for a Williams Widebody pinball machine. All the measurements are in mm sadly even though all pinball cabinets are in inches. I converted and change it all to the nearest quarter inch. Well sort of. The guy who measured this was intending on using 45 deg cuts in the corners. My skill saw is too cheap for that so I changed the measurements for butted joints. The interior is set for a 23.5" wide playfield. The length of the cabinet is 51.5" in total. I used 3/4 inch plywood so the bottom would be 50" long for example. You can pretty much dimension the rest from there. I did get a little chipping of the plywood but I went out and bought a blade with more teeth for finer cuts. It's a 60 tooth saw blade and my skill saw doesn't really have enough power for it so I have
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