(Topic ID: 72255)

DW MPF Hey CPR my Doctor is NOT a "DUD" / "ODDBALL"!!


By Fairground

6 years ago



Topic Stats

  • 26 posts
  • 12 Pinsiders participating
  • Latest reply 1 year ago by pinball_faz
  • Topic is favorited by 7 Pinsiders

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#1 6 years ago

Not long ago (August) I purchased a mini playfield board from BAA, manufactured by CPR. At first I was a bit concerned with the finish of the surface, as it had small pin prick type spots under the clearcoat. BAA were very helpful and after lots of emails and them offering to meet me half way with postage I decided to keep what I had, as the cost to send it back to the USA was still too expensive and only “I” would know the condition I received it and it would not be visible when the rest of the playfield was in place. // Error: Image 160651 not found //
OK, so now all I had to do after installing a new motor, mushroom buttons, optos and rubbers etc., (Many thanks Toads of AA for helping me change it over and also changing the mushroom buttons, springs and opto board) onto the brackets and some hours cleaning and polishing (Brasso is my new friend, definitely an outside thing with the fumes though), Toads even sent a couple of parts off with his chrome order and put other parts though his tumbler, I was ready to put it all back together….. or so I thought. // Error: Image 160650 not found //
The pics show the line-up of the t-nuts and holes drilled in the CPR playfield did not match mine. // Error: Image 160652 not found // // Error: Image 160653 not found //Approx. ⅛th inch out. This meant that the playfield would sit too far forward when screwed on to the main playfield. Emails this time were forwarded to CPR as I needed to talk to the source. I was told that the “CPR” MPF board was properly cut and holes drilled as per original NOS specifications. That my Doctor Who must be a “DUD” and that they have not had any complaints from anyone else they have sold their MPF’s to. “All care taken, No responsibility” is how their answers seemed to me “These guys would be brilliant used car salesmen”. Wish it was different and I had a good report regarding their “after sales service”. Their advice after looking at photos:
[Look at the room at the rear. Tons. Back it up. The whole mechanism from underneath the playfield. About 1/8 to 3/16 of an inch is all it should take. The whole master unit should be detachable and held onto the playfield with several screws underneath.
Your machine is unfortunately an oddball. Since the games were assembled on the line by human beings, they assembled your particular machine based on the mini they had at hand... so everything was positioned based on that. Your mini has an inside-cut that is backed up relative to most.
The extremely valuable NOS original we modelled the reproduction after would ALSO not fit in your machine for the same reason, and look the same.
Remember, nary a word of this kind of fit after 150 sold and installed by people. Which makes sense, because ours is identical to a mint unused uninstalled factory original specimen.
It sucks you have to do a little bit of movement as opposed to most, as it would have been great to be a drop-in swap. I agree. Kevin]

I sent pics off to Faz, whose publication I was following for removing and replacing the MPF and even he was amazed at the difference and offered advice regarding the holes for the brackets etc. I had also read here on Pinside where people were having the same problem as me and one person had cut part of their MPF board to suit, also that someone had drilled the holes to lengthen on the bracket to enable their MPF to sit properly. // Error: Image 160654 not found // Well after much reading and discussion, Toads filed the holes so that the MPF could sit back further, using stronger screws to ensure it held.// Error: Image 160655 not found // // Error: Image 160660 not found //NOW I could put it all back together, also able to fit brand new designed hole cliffys purchased from Cliffy. // Error: Image 160658 not found // // Error: Image 160657 not found // // Error: Image 160659 not found //
I have learned that……………….. I can follow written instructions and even though I was really “apprehensive” about removing and replacing my MPF and also the unplugging and cleaning and ordering and putting everything into envelopes with all the parts inside noted and taking photos as I went, I am proud that I was able to do it, with help from Toads when it came to explaining what the actual parts did and his endless patience ( walking out side to have many a ciggy to allow me time to take in and understand and undertake instructions). Also for helping me source the parts I needed and sending my boards off to Ken to have them boosted. Thank you Ken, fantastic job and quick too!! Also big thanks to Toads for the entire electrical and soldering etc. that was way beyond my capabilities. Also, thanks for my birthday present – new dalek sling shot plastics – very cool!
I have also learned…………… well maybe, cause it’s not my better quality………………….”Patience” That a lot of parts I required came from USA. You don’t go to the local hardware store for your pinball parts. I hope this has not been too long winded and that it has helped anyone thinking of overhauling their MPF on their Doctor Who. Thanks for reading. Allison.

#2 6 years ago

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#3 6 years ago

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#4 6 years ago

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#5 6 years ago

Allison,

I'm glad you were able to get these photo's posted. I'm positive it will help someone else out. The photo comparing the two Mini's is very telling.

Thanks,
faz

#6 6 years ago

I think it is funny that they described the board you had installed in your game as an oddball. Seems to me that any NOS board not used was more likely the oddball or they would have used it.

Here is a picture of mine for comparison. is certainly pushed forward in the opening and I plan on also slotting the mooting holes to give me room to push it back.

IMG_8964.jpg
#7 6 years ago

Some videos I did comparing the repro and original. I ended up reusing the original.





#8 6 years ago
Quoted from Paladin:

A video I did comparing the repro and original. I ended up reusing the original.
» YouTube video

I can kind of see why they wouldnt drill out those holes for you(labor/cost?), but the stroke on the fonts and arrow would drive me crazy.

#9 6 years ago

Thanks For the videos Paladin. Yes lots of holes to drill but it didnt damage the clearcoat, was daunting for me too. Here is the pic of the bracket drilled out and the mpf fitting in with cliffys onimage.jpg

#10 6 years ago

Sorry to see you had issues. I had to enlongate the the bracket a bit to give clearance due to the addition of the Cliffy Protectors, but besides that my MPF was dead-on when compared to the beat to crap NOS unit in my game.

As I have said before, some work should be expected with any repro product. Games were made by hand and mistakes were made all the time. Getting a repro product to be drop-in ready for everyone would be practically impossible.

Glad to see you came up with a solution (even with the crazy amount of work it took!)

#11 6 years ago

CPR made two runs - a solid blue and a blue with pinpoints, or dots. Do we know which run had the problem?

#12 6 years ago
Quoted from Methos:

CPR made two runs - a solid blue and a blue with pinpoints, or dots. Do we know which run had the problem?

good point! Mine is one of the solid blue ones. The dithered ones sold out quickly.

#13 6 years ago

Mine is the two tone

#14 6 years ago

CORRECTION > CPR made 1 run of these, not 2. All of the wood was all cut at the same time from the same Digital Cad file on the same CNC machine. The only difference was in the Screenprinting, which has nothing to do with the mechanics, size, or shape of the wood.

There were no problems with this playfield. As with ALL Pinball machines made back in the day > they were assembled by hand and had no templates to work from. Workers would simply line things up & put a screw into place as they saw fit. This is why no 2, 3, 4, 100 (used) Playfields will ever have the "exact" same mounting holes. As we have mentioned many times in the past you need to be careful & line things up according to a proper fit on "your" machine.

As noted on the CPR Install Guides Page:
http://classicplayfields.com/guides.html
"For crucial hardware (flipper mechanics, ball trough, etc), don't just plunge screws into the dimples without checking the physical position of the hardware itself. Always check that your hardware is in its proper position, then look to see where the screw holes in the hardware are positioned. If they are over the dimples, great. If they are not, slightly move the part and see if the dimples are close by. Make a judgement call on either following the dimples, or not following the dimples in those cases. Proper (or better) positioning takes precedence over following the dimples. Don't feel "stuck" to the dimples! Remember, our dimple pattern is based on one
playfield, and through the thousands of original playfields made back at the factory, parts were hand-screwed via a template. Every original playfield is slightly different in where the parts were drilled-in. This is normal. Go slow, it will all work."

I sympathize with the OP on his troubles installing this MPF, as I have also stumbled with my own PF swaps, and I am very aware of "lining things up for proper fit" BEFOR trying to mount anything down. The hiccups are with the machine (of which no 2 are the same due to the way they were built/assembled) > not with a new part that was manufactured all the same from Digital files.

You have to take your time, line things up, and double check everything for proper fit Prior to mounting. I hate the way pins were manufactured by hand back in the day but this is what we all have to deal with in restoring our pins.

Quoted from Methos:

CPR made two runs - a solid blue and a blue with pinpoints, or dots. Do we know which run had the problem

#15 6 years ago

Did CPR test their NOS playfield in a game before making them?

3 years later
#16 2 years ago

I elongated the holes on my MPF bracket to make it sit back further. It really threw me how much difference there was. I really thought I had a defective CPR mini playfield. Maybe the factory made different runs originally?

4 months later
#17 2 years ago

Sorry for not seeing your post till now. My original mpf caused no issues.
It was the CPR mpf I purchased that caused the problem and then I had to elongate the bracket holes.

1 year later
#18 1 year ago

So, what's the case for elongating the bracket holes vs. shaving the front of the mini-playfield?

#19 1 year ago
Quoted from beeker3000:

So, what's the case for elongating the bracket holes vs. shaving the front of the mini-playfield?

Elongating the holes is easy and allows a point of adjustment.

Shaving the front of the MPF is forever and could crack the clear.
faz

#20 1 year ago
Quoted from pinball_faz:

Elongating the holes is easy.
faz

How would you go about it - Hand file, dremel?

#21 1 year ago
Quoted from beeker3000:

How would you go about it - Hand file, dremel?

I'm not sure if this is the best method to elongate the wholes, but I just did it two days ago with a dremel and small barrel diamond tip and it went pretty well. I tried with a tungsten cutting bit and it just kept bucking out of the whole. It took a little while, but at least you could easily gauge your progress.

Here's the diamond bit set I bought: amazon.com link »

#22 1 year ago

Here's the diagram I was using for reference that catch86 was kind enough to provide on the Dr Who Owner's thread when I was asking about it.

MPF diagram (resized).jpg
#23 1 year ago
Quoted from pinball_faz:

Elongating the holes is easy and allows a point of adjustment.
Shaving the front of the MPF is forever and could crack the clear.
faz

Hey Faz,
also by shaving the front of the MPF, the edge cliffy will be then longer than the MPF which will render the cliffy useless.

#24 1 year ago

Look at this photo Allison took. The CPR replacement is offset in a weird way. Never seen actual trimming of the CPR MPF but it's been talked about and the poster is usually talked off the ledge

https://pinside.com/pinball/forum/topic/dw-mpf-hey-cpr-my-doctor-is-not-a-dud-oddball#post-1284664
faz

#25 1 year ago

Thanks guys. I was able to do it with a Dremel. Wasn't that hard after all.

#26 1 year ago

Awesome! None of this is hard... we're all just afraid of F-ing up
Fear sucks!

faz

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