(Topic ID: 207545)

Dialed In Right Orbit/Ramp ball rejects...

By snaroff

6 years ago


Topic Heartbeat

Topic Stats

  • 15 posts
  • 8 Pinsiders participating
  • Latest reply 3 years ago by Enver
  • Topic is favorited by 3 Pinsiders

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#1 6 years ago

When I nail the right orbit/ramp, it occasionally (~20%?) doesn't make it's way through the grey/plastic ramp and up to the wireform. Instead, it bounces back and typically goes in the skill shot slot, pops, or back down the right orbit.

I've studied some slow motion video and believe the ball hits the ramp flap and goes airborne, eventually striking the corner of the metal guide (see diagram).

I imagine dialing down the left flipper power would fix this, but wanted to know if anyone else has dealt with this. Flippers feel awesome and would like to avoid dialing them down for this one shot.

Anyone else experience occasional right orbit/ramp rejects?

Thanks for any help,

snaroff

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#2 6 years ago

If mine ever does it's very rarely...I can't remember it happening.

Usually if it doesn't make it it goes up the ramp and then comes back down, and heads to the left orbit occasionally.

#3 6 years ago

I've yet to see this on mine (LE version), but another DI I played (which was a standard) had it happen from time to time. A lot of the reported necessary tweaks or issues have never popped up on my game, but I have witnessed them elsewhere. I guess I've been pretty dang lucky.

#4 6 years ago

Yeah, mine was stifled often when I had the flipper strength at factory settings. I dialed it down maybe by three and I get far less rejects (<10%) - it hasn't affected anything else as far as playfield shots are concerned, so I called it solved.

#5 6 years ago
Quoted from jar155:

I've yet to see this on mine (LE version), but another DI I played (which was a standard) had it happen from time to time. A lot of the reported necessary tweaks or issues have never popped up on my game, but I have witnessed them elsewhere. I guess I've been pretty dang lucky.

It's either luck, or your flippers aren't operating at full strength. Until I dialed in my EOS switches and loosened up the flipper bats, my flippers weren't operating at full strength (and some of these ball speed sensitive issues didn't surface).

snaroff

#6 6 years ago
Quoted from snaroff:

It's either luck, or your flippers aren't operating at full strength. Until I dialed in my EOS switches and loosened up the flipper bats, my flippers weren't operating at full strength (and some of these ball speed sensitive issues didn't surface).
snaroff

When you adjusted the EOS switches are they exposed to be open until the flipper is extended the whole way?

#7 6 years ago

My pin was experiencing the same thing a lot of right ramp rejects and I asked pat if he new how to fix this issue and he sent me this below. Before I applied this fix I could not even do a full plunge without the ball rejecting. I had to turn my flipper power down to 20 tho. It still rejects once or twice a game. Maybe I have to push the ramp down more. I would love to have it work 100 percent of the time and at full flipper power to keep the speed up. Maybe somebody could design a plastic air ball guard over that ramp flap that might fix it. Moding community please help. Let me know if this works for you or if you find anything else that will work.

Sorry to hear about your problem.

There are 2 things to check on your game.

1. Check to be sure that the left orbit inner ball guide, where it meets
the entrance/dropoff to the right ramp, is not sticking into the ramp
entrance. You should be able to feel if it is. It should be very
SLIGHTLY behind the right ramp wall.

2. Take a BLUNT tool, like the handle end of a screwdriver, and push
down on the floor of the right ramp entrance steel floor at the junction
of the left orbit drop off. You are trying to very slightly lower the
floor of the ramp entrance by bending it gently down. This ensures that
hard ramp entry shots are not hitting the edge of the junction. You only
need to bend it about 1/16" to be effective.

Good luck with your game.

#8 6 years ago

Exactly the same problem for me, especially when it's a very fast entrance in the right orbit.

#9 6 years ago

I get those from time to time also. I'll try your suggestions PinballPal. Thanks!

#10 6 years ago
Quoted from Pinballpal:

My pin was experiencing the same thing a lot of right ramp rejects and I asked pat if he new how to fix this issue and he sent me this below. Before I applied this fix I could not even do a full plunge without the ball rejecting. I had to turn my flipper power down to 20 tho. It still rejects once or twice a game. Maybe I have to push the ramp down more. I would love to have it work 100 percent of the time and at full flipper power to keep the speed up. Maybe somebody could design a plastic air ball guard over that ramp flap that might fix it. Moding community please help. Let me know if this works for you or if you find anything else that will work.
Sorry to hear about your problem.
There are 2 things to check on your game.
1. Check to be sure that the left orbit inner ball guide, where it meets
the entrance/dropoff to the right ramp, is not sticking into the ramp
entrance. You should be able to feel if it is. It should be very
SLIGHTLY behind the right ramp wall.
2. Take a BLUNT tool, like the handle end of a screwdriver, and push
down on the floor of the right ramp entrance steel floor at the junction
of the left orbit drop off. You are trying to very slightly lower the
floor of the ramp entrance by bending it gently down. This ensures that
hard ramp entry shots are not hitting the edge of the junction. You only
need to bend it about 1/16" to be effective.
Good luck with your game.

Thanks for passing along Pat's comments! I've already considered Pat's suggestions (though I haven't discussed this issue with him).

As I said in my original post, I believe the problem is the fairly thick flap is causing the ball to be airborne. The problem isn't the ramp per se...it's the flap that bridges the PF with the ramp. If the ball were staying glued to the PF/flap/ramp, it would function 100%. I'm not saying some of the ramp's aren't "off", but mine isn't. If I take the ball and run it by hand, the ramp is perfectly aligned with the metal ball guide.

Once or twice a game is roughly what I'm seeing, but I'm at default flipper speed. Before I "cave" and dial down the flipper, I have an idea I'm going to try out. Keep you posted! Would love to solve this and not surprised I'm not the only one with this problem...

Thanks for speaking up!

snaroff

#11 6 years ago

Think I solved the problem (for my machine...YMMV).

I created a vinyl bridge between the PF and the flap to avoid airballs. Took me 5 minutes. Only had to remove the upper PF and gate to pops to access. If I wanted a perfect seam, the wireform would have needed to be removed. Considering where it is located, a perfect seam isn't necessary.

Here is the tape I used:

https://www.amazon.com/gp/product/B000FPDKI4/ref=oh_aui_detailpage_o00_s00

More testing is necessary, but I'm optimistic. I've never felt the ball fly around the ramp/wireform like this...a result of the ball staying planted firmly on the PF/flap/ramp/wireform. Bet that even when it wasn't being rejected, the flap was causing the ball trajectory to go off course and lose momentum.

Will post back with my results after more testing.

Hopeful this is my last major issue to resolve...yeah!

snaroff

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#12 6 years ago
Quoted from Pinballpal:

When you adjusted the EOS switches are they exposed to be open until the flipper is extended the whole way?

Correct. When the flipper is fully extended, the switch should fire. If the switch fires early, you don't get the full force.

snaroff

#13 6 years ago
Quoted from snaroff:

Think I solved the problem (for my machine...YMMV).
I created a vinyl bridge between the PF and the flap to avoid airballs. Took me 5 minutes. Only had to remove the upper PF and gate to pops to access. If I wanted a perfect seam, the wireform would have needed to be removed. Considering where it is located, a perfect seam isn't necessary.
Here is the tape I used:
amazon.com link »
More testing is necessary, but I'm optimistic. I've never felt the ball fly around the ramp/wireform like this...a result of the ball staying planted firmly on the PF/flap/ramp/wireform. Bet that even when it wasn't being rejected, the flap was causing the ball trajectory to go off course and lose momentum.
Will post back with my results after more testing.
Hopeful this is my last major issue to resolve...yeah!
snaroff

I actually tried this by putting a bunch of mylar layers in front of the flap but I could not get the Mylar layers thick enough to even the transition out I will give this a shot and see what happens thanks.

#14 6 years ago
Quoted from Pinballpal:

I actually tried this by putting a bunch of mylar layers in front of the flap but I could not get the Mylar layers thick enough to even the transition out I will give this a shot and see what happens thanks.

Sounds good...look forward to hearing if it works for you. I played about 5 games and the difference is huge...no rejects and the shot feels perfect overall. Silky smooth.

Don't know if you've had the bounce out/back problems with the left wireform, however the tape works there as well to prevent the ball from going airborne. Less invasive and simpler than the funky JJP plastic cage. Since installing the tape, haven't had one bounce back or bounce out

https://pinside.com/pinball/forum/topic/dialed-in-owners-and-fans-club/page/42#post-4134733

snaroff

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2 years later
#15 3 years ago

Confirming that this solves a problem I had with the machine for years and that made me not play it any more.

I had hit a plateau playing DI!, and my only chance to make the machine 'easier' for me without cheating was fixing that ramp ball deflect behavior one day. Thought of getting a new ramp even, had experimented with stickers or bending/filing the metal corner the ball crashes into.

Now that I put a Gaffer tape strip at the ramp entrance I had no rejects at all any more and in my second test ball I hit 1M.

Thanks for bringing this game back to life for me. This is such a crazy huge improvement, I feel it deserves to be mentioned in a JJP service bulletin.
Or they should send out original JJP approved pieces of vinyl tape to the buyers

--Enver

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