Reply To: Rocky and Bullwinkle Rehab

#151758
Scottacus
Participant
    @scottacus

    Hooray, the table is completely cleaned and put back together again and there are no leftover parts!  I saw a post on Pinside where someone lit up Bullwinkle’s eyes on the topper and I thought that was a cool idea so I took apart a cheap Walmart flashlight and used the 8 high power LEDs to make a projector for the topper.  I 3D printed a focus tube and attached it to a 3D printed housing.  The assembly was mounted on to of the head so that it projects light onto the back of Bullwinkle’s eyes.  I ran a quick disconnect set of leads into the head and tapped off of a 5v and ground terminal on the power board.  Here’s the unit mounted on the head with a metal foil lining to the focus tube.

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    And Presto, here’s the result.

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    All of the parts were re-installed onto the playfield, thank heaven for digital cameras to take lots of photos of the jigsaw puzzle of ramps and plastics!  Here’s a detail of the cleaned and waxed playfield.

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    I bought over 150 LED’s for the table and I’m still short about 2 dozen.  I put all of the LEDs that are in really hard to get to places in and left easy to get to back box incandescents in place until I put in another order.  It’s impressive how bright these LEDs are for the amount of current that they draw, the game is visibly much brighter than before.  I did not put any colored LEDs in but rather used the silicone bulb covers to add the original colored lighting back into the game.

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    I’m still waiting on a high power resistor to get here for the final modification of the table.  The backbox has three clear plastic parts that pop up during the Hat Trick portion of game play.  This is the part where all three hats on the left side are lit and a ball is shot up into the “Hat Trick” area.  All the GI lights go out, the curtain on the head is lit and Bullwinkle says “Nothing up my sleeve, Presto!” and either a Lion, Rhino or Rocky gets pulled out of the hat.

    There are two different voltages that go to the three coils, 50V for the Lion and Rhino because they are bigger and heavier and 32v to Rocky.  One common mod for the table is to rewire the Rhino to 32V because the 50v coil is too strong and slams the rhino into the top guide rail so strongly that it retracts part way down and all you see is the top 3/4 of the rhino.  The same thing happens for Rocky so I did some testing with various 2W power resistors and if I put about 2 ohms of resistance in series with the 4 ohm coil I can get Rocky to deploy just about perfectly.  I ordered a wire wound 100W power resistor to put into the game since the coil draws about 8 amps at 32v DC so the 2 ohm resistor will have about a 10 volt drop across it at 8 Amps for a total of 80 Watts.  This is wattage rating is super overkill because the coil only fires for about a second and a half and only about once every 10 games and the power resistor is built to take this for days on end.   I’m playing it safe because I’d rather not have any chance of the head going up in flames because of this mod…

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