(Topic ID: 255496)

Comet rides again


By yaksplat

7 months ago



Topic Stats

  • 24 posts
  • 6 Pinsiders participating
  • Latest reply 5 months ago by jaytrem
  • Topic is favorited by 3 Pinsiders

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#1 7 months ago

I bought a pair of comets and a spare playfield.
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From these, i should be able to build two good comets; one with the spare playfield and another with a hard top. Somehow I don't think anyone would be interested in a comet playfield that looks like this.
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Although the intentions were good, the execution was not there.

So I've got some issues to start off with.
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Yeah, that's not pretty.

Rottendog on order, but then this gives me an opportunity to see if i can salvage this board. I used to work in a circuit board factory, so soldering isn't really an issue at all. Diagnosing issues will be the challenge here.

#2 7 months ago

Finally got one of the machines down into the basement today. Now that it's cold out, the garage isn't a suitable work environment.

Step one: Confirm that everything with the transformers is working correctly. There was a blown fuse which concerned me, but then after seeing some cut wires, and other hacks on this machine, it wouldn't surprise me if someone did that while it was plugged in. Also the main fuse was only a 4A instead of 8A.

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Once i replaced the fuse and soldered some of the connections back up, everything tested out fine. All the right voltages in all the right places. Just needs a lot of cleaning.

#3 7 months ago

Oh good for you man. I saw that after it was posted for about an hour. I’m a little upset with myself I didn’t pull the trigger but will follow your progress.

#4 7 months ago
Quoted from yaksplat:

Also the main fuse was only a 4A instead of 8A.

I see in the pic that for 220v to go with 4 amp. So maybe it was setup for 220 a lot of machines get switched when imported and exported is what I hear.

1 month later
#5 6 months ago

So, in the past month, I've been messing with boards. Neither machine has a MPU that's 100%. The one had battery damage all over the place and the other has random dead components on the board. I was hoping that I'd have one good one between the two. So, while repairs are going on, I decided to get a RottenDog 9211 MPU. That way I can now tell that all of the gremlins that were appearing had nothing to do with the playfield and everything to do with the MPU with issues. Once I confirmed that all of the switches and solenoids on the playfield were good, it was time to strip it down for a hard top. There was a lot of wear in the middle of the playfield so, for me, it's just a piece of wood.

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Sanding... Sanding...
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And more sanding
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Once sanded, I hit the inserts with some thin superglue. I'll be able to polish them to a shine, working my way up to 3000 grit.
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The hard top is waiting.
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#6 6 months ago

Inserts sanded to 3000 grit and polished to a shine.
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#7 6 months ago

Where did you get the hardtop?

#9 6 months ago

Following. Keep up the hard work.

#10 6 months ago

Hard top on. I'm not gonna lie, there's a bit of stress when installing it. It wasn't bad, but the one shot nature of it makes it scary.

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#11 6 months ago

Looks great! I know that feeling of relief when it's on right.

1 week later
#12 6 months ago

Clear bodies and transparent red skirts sure look nice with upgraded lights.

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#13 6 months ago

Looks great! I added some brighrings a couple weeks ago. I killed to upper leds so it wouldn't ruin the looks of the caps. Really brightened up the area nicely.

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#14 6 months ago

I tried out some flame polishing today. I think it turned out quite well.

Before:
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After:
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Installed:
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#15 6 months ago

Looking good, I did a flame polish on a Hurricane for a friend and it turned out as good as yours. Good job on the Hardtop, it's a bit nerve-racking for sure to install one. You will really like it!

#16 6 months ago

Wow, that ramp looks new!

#17 6 months ago
Quoted from jaytrem:

Wow, that ramp looks new!

Getting the damn decal on the ramp was worse than flame polishing it. In that area there's a lot of elevation change and a curve. No fun at all.

#18 6 months ago
Quoted from yaksplat:

Getting the damn decal on the ramp was worse than flame polishing it. In that area there's a lot of elevation change and a curve. No fun at all.

Great, something to look forward too when Freeplay40 makes the new ones.

#19 6 months ago

Actually if the decal had a split backing, the installation would have been better. Or if I had taped half of it down first into position. Next time...

#20 6 months ago

Ramp looks fabulous and also the hard top. Where did you get the clear bases for the pops?

#22 5 months ago

This playfield is just about there.

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#23 5 months ago

I ran into a minor issue with a new corkscrew ramp from @freeplay40. I don't know if this was due the combination of using a hard top as well. The ball would rub on the underside of the ramp, right after the wireform gate.

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There is a metal tab on the left hand side on the rail. The original ramp went all the way up to this tab.
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But you can see that with new ramp, it is below the tab quite a bit.
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Now the reason that I mention that it might have something to do with the hard top is that the ramp is anchored on the playfield wood, and the ball is travelling 1/32" higher with the hard top installed. That 1/32" makes all the difference, and i don't think it would rub otherwise.

My solution to this was using a hole that was in the hard top, right under the edge of the ramp. None of my three playfields have this location filled with anything, so I placed a double starpost in there with a ring on it. The ramp sits on the ring and just slightly lifts it so the ball travels easily underneath it.
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#24 5 months ago

Intetesting, I don't recall having an issue with that (same products). Looks like a good solution you came up with.

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