(Topic ID: 244666)

JJPOTC Treasure Chest Open/Close mod, now working!

By pinballj

4 years ago


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Post #7 Working prototype video Posted by pinballj (4 years ago)

Post #185 Everything needed to make your own chest-opening mod... Posted by pinballj (4 years ago)

Post #615 Code for lighting mod controller Posted by harryhoudini (4 years ago)

Post #925 Adjusting switch for mod when chest lid doesn't work Posted by harryhoudini (4 years ago)


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#1325 1 year ago
Quoted from prentice:

EDIT: was able to find JUST enough slack to make the connection, it might actually lift the lid a little over time, it did so right out of the gate but not after a tiny bit more stretching.
Anyhow working for now!
_________
I’m probably one of them last people to be installing this mod, but I just received it.
Took me a LONG time to piece together the right instructions, as the PMC instructions skip past chest lid disassembly and then jumps around in the sequence of videos. I kept doing things out of order. Anyhow, I’d guess there aren’t many people after me so maybe not worth the effort to fix, but feel free to ping me if anyone in the future struggles here.
My remaining question: the lighting wiring is only shown from the topside, and on mine the wire cannot reach over to the right side of the mechanism where the connector is. Can anyone show me what theirs looks like, or what to do if the wire doesn’t reach? I don’t think I have any slack in the topside/chest part, and it looks like the red wire for the 3-pin connector coming from Arduino is too short to let out any further.
PS: This is definitely a top-5 mod of all time, and #1 amongst the non-artistic mods. . Well done to both the creator and the kit-seller.
[quoted image]

Guess what! I'm also late to the party, having just received my unmodded POTC. And like you...yeah, trying to piece together the instructions was interesting, since there have been so many changes to the mod. Just figuring out what to ignore, or even what has changed, took a while. This video really helped, but even so, now there is no "yellow" thing to cut ->

https://pinside.com/pinball/forum/topic/jjpotc-treasure-chest-open-and-close/page/24#post-5385656

The rod is essentially cut to the right length, though if it was ANY shorter I would have some install problems. (I lengthened it to the max and was still a bit tight).

I also noticed that the LED light wire lengths were too short. An easy fix which gives 2" or so more length...is to just cut the ziptie on the arduino and attach it to some other cables under the playfield to get it moved over closer to the led light.

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I'm also not sure what everyone else is doing with the bundle of wires from the optos/ball lock coil? Initially I just pushed everything forward (towards the chest) but then the optos seemed to be pushing against the rod too much, so I then slipped the rod between the opto wires and the rest of the wire bundle.

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These rubber posts are also a pain....I eventually first attached the rubber nubs to the plastic, and then put a tiny amount of soapy water to lubricate them so they would more easily fit into the metal bracket. I wonder if there is a better way of handling it (or maybe I should have used a tiny bit of superlube or something).

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