Tom's fix / tweak list

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sdtom
Posts: 30
Joined: January 3rd, 2014, 1:41 am

Tom's fix / tweak list

Post by sdtom »

Going to maintain my list of problems/solutions here. Much of this was through use of support tickets with DP; so would ask people still send in tickets so DP knows statistics of how often people are fixing this stuff.

Problem: Right maude ball gate was sticking slightly and letting the ball back out a lot
Symptom: Good maude shots would bounce off donny ball gate and then back down maude shot
Symptom: The long spring traveling through the playfield was dragging on the playfield wood (run up the side of the hole).
Solution: Adjusted ball gate wireform to run clear through the hole / no dragging.

Problem: Mini playfield loop clunky
Symptom: ball would drop from the loop inside the bowling alley building and bobble around a bit longer than necessary before exit
Solution: Adjusted metal ramp inside the bowling alley to point as close to the building exit as possible
Video: showing how much play there is https://drive.google.com/open?id=1EjCEG ... _qzSLZLIDQ
Video: best I was able to get https://drive.google.com/open?id=1_ctXN ... IlKyW0oTUw

Problem: bowling alley launcher stutters at the edge
Solution: waiting on new cam plate from DP; unresolved
Video: https://drive.google.com/open?id=1iUTmL ... la1uUf0LmQ
Pic: angle of launcher to find the set screw https://drive.google.com/open?id=1s5oFe ... DMFS9fE6tA

Problem: Rejects at diverter flap / airballs
Symptom: Diverter flap would not rest within the ramp slot; would fall forward of the slot / too tall
Temp Solution: Elongate the adjustment slots to allow the flap to be lower by 2mm for proper operation
Long term Solution: DP is developing a new part
Pic: of resting fwd: https://drive.google.com/open?id=0B0GLV ... WZ6cUdyOGM
Video: of manual operation: https://drive.google.com/open?id=17GAmM ... suntvb2kig
Pic: after being able to lower the flap: https://goo.gl/photos/psxgUgaNBCfMawTy6
Pic: before: https://drive.google.com/open?id=1_55cF ... LkzhiSucWQ
Pic: after: https://drive.google.com/open?id=1b5rkT ... mlN3wNbLCg

Problem: Diverter rams plastic when coil fire
Temp Solution: added a felt dot on the plastic to soften blow
Long term solution: unknown; maybe new diverter stop?
Concern: Unforunately, there's no other coil stop involved other than plastic as far as I can tell
Concern: This goes for the deployment as well; it looks like hitting the bottom of the playfield is the "stop" for the mech

Problem: Rejects at back of ramp scoop
Symptom: Seems like ball was hitting the edge of the scoop due to gap between ramp and scoop
Solution: I developed and 3d printed a little clip to better mate the back of the ramp to the scoop entrance
Link: STL file on Thingiverse: http://www.thingiverse.com/thing:1786982
Picture: https://drive.google.com/open?id=1XVCGK ... hY7ymR4Ndg
Video of installation: https://drive.google.com/open?id=1TnsA4 ... QGQv2_hNUQ

Problem: Jesus VUK too sensitive
Symptom: Occasional double VUK action
Solution: VUK switch was overly sensitive; it should really set with the full / 75% weight of ball. Widenend gap
Video of it being too sensitive: https://drive.google.com/open?id=17f1R3 ... 30PEP2sUbw

Problem: Jesus Rejects
Symptom: Shots occasionally come back down the ramp, or into shooter lane
Note: this is after VUK fix
Solution: Still working on it. I added some drop dead foam to back wall of jesus area but it still hasn't eliminated.
Idea: may also figure out if it's possible to reroute that cable somehow, seems wear/tear prone.
Picture: drop dead foam (that honestly, isn't doing much) https://drive.google.com/open?id=1s2g79 ... wNMPucOChw

Problem: Rug in wrong place / wrong time
Symptom: "Rug mode ready" when rug was all the way forward
Symptom: Weird homing sequences / going all the way back before going fwd
Solution: Reseated and used a flat head screw driver to re-terminate the stepper motor lines into the IDC connector. So, not a sensor thing but an actuator thing.

Problem: Ball trapped behind flipper on mini playfield
Symptom: Can fire flipper and the ball still stays here
Solution: Used a pair of needle nose to bend wireform slightly so that raising the flipper allows ball to roll away and down the ball return.

Problem: Game resets
Symptom: Game will sit in attact mode for hours, but if start a game, will eventually reset
Solution: Pressed in the 3 P-ROC boards, adjusted mounting nuts to more evenly apply pressure in one case
Concern: This may be just because I raised/lowered playfield a bunch getting tweaks into place, but time will tell if this is an issue just with vibration

Problem: SDTM from rug skill shot
Solution: Leveling

Concern: Experience with stepper screw drive mechanisms (as seen on rug) on 3d-printers says they should be greased for optimum operation
Solution: very lightly greased screw mechanism with Super Lube 21030

Problem: Silkscreen on PCB saying what the color code is; isn't always correct. I imagine this is fixed in later runs
Picture: https://drive.google.com/open?id=1jcxG9 ... _GMrtd8jSA
burningman
Posts: 14
Joined: January 3rd, 2014, 5:23 pm

Re: Tom's fix / tweak list

Post by burningman »

Nice write up Tom.

Regarding the scoop at the end of the Dude ramp. I zip tied the plastic ramp sides tight to the scoop. Then added a small square of mylar to the sides and the bottom of the exit of the ramp/entrance to the scoop. Ball now flows smooth into the scoop.

I noticed the cliffy edges around the mystery hole were bending slightly so added some mylar to that as well to smooth it out.
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