Project log - Pinball machine

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Bergo
Posts: 323
Joined: Wed Jan 05, 2011 4:57 pm

Re: Project log - Pinball machine

Post by Bergo » Mon Apr 04, 2011 8:56 am

awesome! good work Ryan!

Kaldonis
Posts: 348
Joined: Wed Jan 12, 2011 3:29 pm

Re: Project log - Pinball machine

Post by Kaldonis » Mon Apr 04, 2011 10:38 am

You're getting closer and closer to that $5 I promised you.

rsilk
Posts: 305
Joined: Wed Dec 01, 2010 11:55 am

Re: Project log - Pinball machine

Post by rsilk » Wed Apr 13, 2011 8:52 pm

Image
Image

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Odemia
Posts: 223
Joined: Wed Dec 08, 2010 12:55 pm

Re: Project log - Pinball machine

Post by Odemia » Wed Apr 13, 2011 9:03 pm

Starting to look like a real pinball game, with a fancy screen. Very nice.

rsilk
Posts: 305
Joined: Wed Dec 01, 2010 11:55 am

Re: Project log - Pinball machine

Post by rsilk » Wed Apr 13, 2011 11:27 pm

Got the lamp driver board routed and drilled (yay cnc!)

Image

CNC Routing:
http://youtu.be/_8pEI5M7a9A

CNC Drilling (best thing ever):
http://youtu.be/UwgjgL_XnpM

nathanwiebe
Posts: 18
Joined: Sun Feb 13, 2011 5:12 pm

Post by nathanwiebe » Thu Apr 14, 2011 9:25 am

Very impressive!

rsilk
Posts: 305
Joined: Wed Dec 01, 2010 11:55 am

Re: Project log - Pinball machine

Post by rsilk » Fri Apr 15, 2011 8:32 am

Completed lamp driver board:

Image

If all goes well I should have the lamps firing this weekend sometime. Need to terminate a bunch of connectors first, and write some code to strobe the matrix.

rsilk
Posts: 305
Joined: Wed Dec 01, 2010 11:55 am

Re: Project log - Pinball machine

Post by rsilk » Tue Apr 19, 2011 9:55 pm

Well, that went poorly:

Image

Now to figure out what I boned up...

rsilk
Posts: 305
Joined: Wed Dec 01, 2010 11:55 am

Re: Project log - Pinball machine

Post by rsilk » Tue Apr 19, 2011 10:04 pm

It's a mystery to me... here's the schematic:

Image

The PNPs at the top are tip107, the NPNs are the bottom are top102.

Oh, the pullups are all 10k, and the resistors attached to the bases are all 470ohm.

rsilk
Posts: 305
Joined: Wed Dec 01, 2010 11:55 am

Re: Project log - Pinball machine

Post by rsilk » Tue Apr 19, 2011 10:21 pm

Hah, I'm an idiot. This is why we do the math on resistors instead of just grabbing one that looks right.

3/4W through a 1/4W resistor = smoke escape

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