(Topic ID: 30362)

Midway Rotation VIII pinball

By Foo

9 years ago


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Topic Stats

  • 35 posts
  • 21 Pinsiders participating
  • Latest reply 6 months ago by Hammerhead
  • Topic is favorited by 2 Pinsiders

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#1 9 years ago

Ever see one of these before?

appleton.craigslist.org link

#2 9 years ago

Fascinating!

#3 9 years ago

I've seen and read about them, there was a good restore thread on one before, forget what forum. Would love to try it out...

#4 9 years ago

Yes, the rotation mechanism is manual, the player spins the playfield like a lazy susan.

#5 9 years ago

There's been a discussion about this on RGP recently. These things are wickedly complex with a mix of 8080 and Z80 technology and a daughter card that holds the ROMs and NVRAM. Think like Williams system 4 where the ROMs and RAM would be on the driver board instead of the MPU.

The playfield actually rotates automatically - I've seen the video. It's very cool.

Whoever buys this will have a repair challenge on their hands but when done will have arguably one of the coolest cocktail pins ever made.

And the seller has way overpriced it. In current non-working condition its probably worth $600-800 depending upon cosmetics/completeness/repairability of the boards.

viperrwk

#6 9 years ago

flagged link

#7 9 years ago

There was one at Winston Salem auction about a year ago at the very end of the line in what was probably the last row sold. Just could not tough out another 2 or 3 hour wait. Bet it went cheap and could have been flipped for some money. It was on a flyer with Space Invaders arcade game showing Bally innovation. Would like to play one now as I was like 10 the last time I seen and played one and at that age it might not have worked properly. Would like to revisit the cocktail pin as an adult.

#8 9 years ago

I am not sure if that was the same one I saw a few nights ago or not. I almost bought the one in Milwaukee a few nights ago...... But everything everyone was saying on RGP recently and not knowing exactly what was wrong with it I decided to bail. Last month there was one that sold on Ebay that worked and had my wife agreed with my idea of replacing our kitchen table with this cool pinball, I would have bought that working one.

So oh well, I really didn't have room for another cocktail machine!

Chris

#10 9 years ago

If anyone is interested, I've put some information together on the Rotation VIII here:

http://www.polzin.ca/

This is still a work in progress!

Tim

#11 9 years ago

I played Mike P's at EXPO once. I don't think it was working 100% though. May have been missing sounds IIRC.

#12 9 years ago
Quoted from Tighe:

Yes, the rotation mechanism is manual, the player spins the playfield like a lazy susan.

You're probably thinking of the Valley Spectra IV http://www.ipdb.org/machine.cgi?id=2273
It has the manual rotation mechanism.

8 years later
#13 7 months ago

Picked up this Midway Rotation VIII that needs some rebuilding.

20210601_185437 (resized).jpg20210601_185446 (resized).jpg
#14 7 months ago

Wow, that PF is toast

#15 7 months ago
Quoted from Hammerhead:

Wow, that PF is toast

Not really. It's mostly straw stuck to it that has to soaked and cleaned off.

#16 7 months ago
Quoted from Blackghost4:

Not really. It's mostly straw stuck to it that has to soaked and cleaned off.

It’s planking badly and it’s been exposed to the elements. Keep an eye out, many of these have been parted so you can find a spare playfield if you dig deep enough and talk to the right folks.

#17 7 months ago

I’ve got a custom made base for it if you don’t have any legs. Just let me know if your interested.

#18 7 months ago

This is what your shooting for

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#19 7 months ago

pindel
Have you ever calibrated your motor settings so that it rests at the correct spot? Mine needs that adjustment. It goes past the correct position and the slowly corrects back. Let me know if you have any experience with that please. Thx

#20 7 months ago
Quoted from Ballypalooza:

pindel
Have you ever calibrated your motor settings so that it rests at the correct spot? Mine needs that adjustment. It goes past the correct position and the slowly corrects back. Let me know if you have any experience with that please. Thx

no. It seems to work fine.

#21 7 months ago
Quoted from pindel:

This is what your shooting for
[quoted image]

Very Nice

#22 7 months ago
Quoted from Ballypalooza:

I’ve got a custom made base for it if you don’t have any legs. Just let me know if your interested.

Thanks I will let you know

#23 7 months ago

It cleaned up ok

Rotation Playfield (resized).jpg
It will get touched up and clear coated.

#24 7 months ago

Did you hit it with the pressure washer or something

#25 7 months ago
Quoted from koen12344:

Did you hit it with the pressure washer or something

No that would have removed lots of paint. It was soaked with Mean Green cleaner and water.

#26 7 months ago
Quoted from Blackghost4:

No that would have removed lots of paint. It was soaked with Mean Green cleaner and water.

That’s pretty rough, I’d try to find an replacement. That thing is wrecked. The wood is blown out and rotting in parts. Seriously enough of these have been parted out that someone has a playfield

#27 7 months ago

Still looking for the plastic apron over score displays at a decent price if anyone has one they would let go of.

#28 7 months ago
Quoted from Blackghost4:

It cleaned up ok
[quoted image]
It will get touched up and clear coated.

Can you get a hi-res scan of the playfield, there are many people around that can do a redraw for restoration.

1 week later
#29 7 months ago
Quoted from Ballypalooza:

pindel
Have you ever calibrated your motor settings so that it rests at the correct spot? Mine needs that adjustment. It goes past the correct position and the slowly corrects back. Let me know if you have any experience with that please. Thx

Taken from PinWiki:

"The position of the rotating playfield is determined by two different sensors. There is an encoder mounted on the centre shaft which provides an absolute rotational value of the playfield position. Secondly, there are optical sensors which provides exact positioning for the four play positions. In simplified terms, the encoder tells the logic board which player to turn the playfield to, and the optical sensor provides an exact position to the logic board for the playfield to stop.

To calibrate the playfield, remove the glass cover and remove the ball from the outhole. Make sure all the hardware is securely fastened, the V-belt is snug and the set screws on the pulley shafts are tight.

Test #4 , accessed from the keypad, provides a read out of the position encoder. After Keypad pressing the Test #4 key, manually rotate the playfield. A value between 00 and 77 will be displayed in the "Ball" digits of the centre display. Value 00 should be North, 20 should be East, 40 should be South and 60 should be West. When finished with Test #4, press "End" before entering another test key.

Test #6 provides a read out of the optical sensors. When approaching a play position, the number 1 or 2 will be displayed, also in the "Ball" digits. When at the correct position, the number 3 is displayed.

If either of these tests do not display these values, playfield rotation will not occur properly or even at all. Before proceeding any further, these repairs must be made.

If the readouts are displayed as described, manually position the playfield to the North position and press #6. Position the playfield so that the number 3 is displayed. Now, press "End" then press key #4. If 00 is displayed, the table is calibrated and should be ready to play. if a value other than 00 is displayed, the encoder will need to be adjusted.

To adjust the encoder, there are several small set screws on the rotational shaft just Encoder Adjust above the pulley. Loosen the set screws and turn just the encoder shaft to read 00 while keeping the large shaft with the pulley stationary. Tighten the set screws, ensuring the reading remains at 00, then go to test #6 and ensure that 3 remains displayed.

The playfield should now be calibrated. Don't forget to place the ball back in the outhole.

If during play, the table continues to "search" for the exact position, there may be loose hardware. This can be caused by loose pulleys, a loose belt or the bottom bearing bracket may be loose on its mounting screws. This bracket can be accessed (with some difficulty) by lifting the game out of the cabinet and tipping it to access the bottom of the mount. The 4 mounting carriage bolts can then be seen. Replacing them with 1/4" bolts will secure the hardware."

https://pinwiki.com/wiki/index.php?title=Rotating_Cocktail_Pinball_Games

#30 7 months ago

I'm looking for a hi-res scan of this plastic (0627-00902-0900), can anyone help?

Rotation_VIII_Parts_Catalog_and_General_Instructions_(Sept_1978).jpg
#31 7 months ago

Hammerhead …. Thanks much for pulling that info for calibration.

#32 7 months ago

What does the underside of the playfield look like? How about the inside of the cabinet?

#33 6 months ago
Quoted from Hammerhead:

I'm looking for a hi-res scan of this plastic (0627-00902-0900), can anyone help?[quoted image]

ro 2 001 (resized).jpgro 3 001 (resized).jpgro 3 002 (resized).jpgro1 001 (resized).jpgrotation 001 (resized).jpg
1 week later
#34 6 months ago
Quoted from KenLayton:

What does the underside of the playfield look like? How about the inside of the cabinet?

5687CEA4-DB90-4782-84BE-355B2EEAAF29.jpeg
#35 6 months ago
Quoted from KenLayton:

What does the underside of the playfield look like? How about the inside of the cabinet?

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