A couple of days ago I made a simple bus bar out of some brass bar stock to act as the common ground for a bay of switches from the control board. I drilled and tapped holes so I can screw down crimp connectors. I plan on doing the same basic thing for the 48v solenoid power and a universal ground. I also installed the switch and wired it to my board.
I made some standoff posts with a 1/4″ delrin rod I picked up. They’re what hold the bus bar off the wood. I’m leaning away from using the Pine64 board that I’ve had ready for a while now. Beside the odd few problems I keep seeing with it, I also need power, keyboard, mouse, and an HDMI monitor just to work on it. For the time being, I’m going to switch to using an old laptop from work.
Since I have a fresh Ubuntu installation on said laptop, I updated to the latest version of Mission Pinball Framework and have streamlined my config file to be able to test my solenoid/switch/flipper combination as soon as I finish the rest of the wiring and mount the coil.
I drew up some ideas in CAD and get them out of wood on the laser cutter as a simple proof-of-concept. I have (serious) doubts as to the final mount using wood as their main material, but it should suffice to run a few tests. The head of an M6 bolt fits perfectly into the end of my solenoid as a stop.
So I was gone for about 10 days in October, nothing much to report. I am back now, though, and believe I have come up with a mount for the solenoids that should work real well. I’ll prototype it out of wood and see how that goes. I can machine it out of steel or aluminum later if need be.
Last night I installed the 48v and the 12/5v power supplies, along with the FastPinball power filter board, Nano Controller, and 3208 I/O board. I found some generic brackets at Lowe’s that fit well enough (since I neglected to order the nice brackets from FAST for some reason). You can also see the underside of where I installed my first flipper mechanism. My next steps are to install the Pine64 SBC that will run this prototype, make some power and bus bars, and come up with a bracket that will support the solenoid and connect to the flipper mechanism. That being said, for the next 11 days I will be on vacation. I’m off to see The Proclaimers in Grant’s Pass, Oregon, then drive up the coast, hit Portland, then come back home and get back to work!
I just finished putting the box together. It’s time to work out the electronics and to finish up my first flipper mechanism!
You know those posts that are all around a pinball playfield? They support things, have rubber rings to bump the ball away, etc. I just bought two feet of C360 brass to make some really pretty ones. My table is going to be pimpin’.
I cut out the front and back of the box last night. I also cut the playfield to its proper length. Assembly time!
Also, I’m reconsidering making the corner joints miter-locked, it may end up more permanent than I plan right now. Yeah probably not. The playfield is 1/2″ Baltic Birch plywood and comes in 5×5 foot (cabinet style) sheets. I had them cut it down to 20 inches wide, which gave me two 20×60 inch pieces and one 19 3/4×60 inch piece. Guess which one I’m using first? Yup, the narrower one. And while technically all I have to replace is the front and back, I probably won’t as I’ll damage the sides when I assemble the box.