Not-pinball project

I have had a couple of people asking me what the theme will be. I am between themes, two to be exact, but I’ll keep the names under wraps. I can say this, though: I originally wanted to use Forbidden Planet as the theme for my pinball machine, since I love the film and licensing would not be an issue for a ‘hobby-project’. I thought that NOBODY in the entire world would get the same idea, so I didn’t bother to check up on it. I was wrong. Not only is Forbidden Planet being made as a pinball machine, but it is being made right now – and with a ‘power house’ pinball designer.

 

forbidden-planet-3

/Nicholas

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The order for the pinball driver board (prototype II) has been placed. This time from a new place, so apart from testing the input connectors and how zener diodes works in my circuit I will also have a look at the quality of the PCBs from the new manufacturer.

I expect to have the board designed real soon, so hopefully prototype II will be the last. But who knows.

Untitled

/Nicholas

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Today I sent the files to get the small prototype driver board made. Hopefully I will have it within two weeks. Finally moved beyond the vero boards and into actual printed PCBs. I am amazed at how easy designing a simple PCB like this is.

A picture of the what the board should look like. (not the complete board is pictured)

Untitled

/Nicholas

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I’m in the process of designing the driver board for the pinball project. I have decided that I want it to be a ‘general driver board’ that will be suitable for other projects, not only this project and not just my own. I will be making the pcb so it will have pretty large tracks everywhere, not just at the higher voltage side, but also at the logic level side. This will help soldering and repairs down the road. I will also try to have ample space between components, while still looking at pcb cost(which rises fast as the board expands).

Here’s the basic first schematic & PCB layout:

drvschemv1

drvspcb1

/Nicholas

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Well, I think the ball testing is done. Number of times the ball has run over the playfield in the wear-test: 28.000 times. Number of arc shots: 11.000 times. Since 10.000 of the arc shots also resulted in in a wear-test, when running back to the coil, the final numbers are:

Wear-test: 38.000 
Arc-shots: 11.000 
(Total coil hits: 25.000)

This concludes the ball testing. The product is cleared as playfield material. What comes now is more difficult. I will ship the 20cmx20cm print out, and have holes made in it, to see how it fares. This is one of the few things I do not attempt myself.

/Nicholas

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Finally! The test print has arrived. I am very satisfied with the result from the company producing it. Colors are great and the same goes for sharpness. I think this will a great solution, and a great alternative to the normal way of building pinball.

This was a crucial and very, very important step in the pinball project.

 

IMG_20160109_131040

/Nicholas

 

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Just to get going: I just tested a pop bumper using very simple code; the bumper will fire when the skirt or ‘3’ is pressed, then it will disengage shortly thereafter(less than a second). The amount of time isn’t the important thing here, that it is able to be used, is.

Everything in the game will be CPU-controlled.

/Nicholas

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