Pittsburgh, PA
My friend has an alien and the jaw is no longer moving. The tongue works fine but the jaw doesn't move in game or test mode. Anyone have a suggestion?
(Topic ID: 106728)
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Alien (Heighway Pinball)
Heighway Pinball, 2017
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Quoted from MK6PIN:Stepper motor or board is a good guess, depending on what build of the game he has...
What would I be looking for to know? The motor for the jaw is a little servo motor mounted in the bottom of the Xenomorph. The wiper on the servo connects to the jaw with a piece of stiff wire. This motor then plugs into a board on the back wall of the pf and then is hot glued into place.
Also how exactly does the game keep track of the jaw position? I see nothing in the test about it.
Going back to his place in a week and would like to at least have an idea of a solution for him.
Quoted from MK6PIN:There is a test in the menu for the different states (3 as I remember) of stepper activity.I'll get to the machine tonight...I'll also include part #, pics of (2x) metal geared stepper motors for reference (you have to swap 2 of the wires on the connector to operate properly brown and red I think). They are cheap, and bulletproof the assembly. Mine did a weird chewing motion (not correct), until the plastic gear finally stripped, allowing the jaw to just drop open and stay that way.
The servo board itself has wimpy connectivity, hence the hot melt to hold that particular connection. Easy fix as well.
I found the wire bend to be interesting, as well as proper "top of the head" alignment. Both effected the reliability of the toy.
It's easy to get the Xeno off the playfield (4 screws), and I literally took mine off, re-positioned above the playfield, and reconnected all electronics to put it through the paces.
When it was done and reinstalled, I've had zero problems (game gets played alot)
Thanks, not sure if my friend's has stripped or not. I hear no sound from the motor when testing the jaw and when moving it by hand the motor is resisting but does move. The jaw is apparently hung up by the targets in front of the Xeno so assume something happened there but the motor gears seem intact. Hopefully it isn't some custom board blown or something...
1 week later
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Quoted from Averell:I can send you the 3D file and you can go to your local print shop.
can i please have the file as well?
11 months later
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