Hi! Like many others, I have decided to build my own pinball game. I understand it is going to take me quite some time to get there, but that's fine. For me it is not so much about the end result but more about the process of making.
Since I plan on using quite some coils I started out with building a coil winding machine. I got this done, and now I’m ready to start winding my first coil which I will use for the flipper assembly. I’ve done a lot of reading and decided to go for a ‘solid state’ flipper. Although I’m all for experimenting, I don’t want to reinvent the wheel. Which is why I think it is best to make something similar to this:
https://www.marcospecialties.com/pinball-parts/500-5944-14
I’m planning to power the coil with a 48Vdc power supply, PWM controlled. The coil for this particular assembly has 1100 windings and a wire size of AWG 23. Although I can find a lot of information about the electrical aspects, I can’t seem to find anything about the physical dimensions of such an assembly. Hence my questions:
1. What is the physical length of such a coil (https://www.pinballshop.nl/electronics-parts/coils-and-sleeve/coil-de-sega-stern-flipper-090-5030-00)? Should I stack lots of windings on top of each other or should I spread them out over a more lengthy bobbin?
2. What is the inner diameter of the bobbin (or the diameter of the plunger moving within the coil)?
3. What is the length of the plunger used in such an assembly?
4. How much distance does the plunger travel (from idle stand to being completely pulled in)?
Any help or comments on the above is very much appreciated!
