(Topic ID: 217172)

Changing magnet core on IMVE to newer style

By Chrizg

3 years ago


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Topic Stats

  • 17 posts
  • 10 Pinsiders participating
  • Latest reply 1 year ago by rai
  • Topic is favorited by 6 Pinsiders

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15
#1 3 years ago

Recently pulled one of our IMVE off route that has 125k plays and I left the magnet core in too long before pulling it off location. The normal ones only last about 10k plays so they need swapped out pretty regularly for me and at $10 a piece that adds up quickly. With the damage this field has I figured I could try to change it out and hope for the best. Took some pics since we don't hear often about drilling large holes into play fields

Steps taken:

Collected new style magnet core, drill bit, and got some scrap wood
Drilled the pilot hole into the scrap wood first
Taped the area with blue painters tape to try to avoid splintering
Clamped template to playfield
Drilled hole
Install new core and adjust underneath bracket
Jump for joy I didn't destroy the field and have to swap it out.

Supplies needed:

New style magnet core with the stainless steel protector (pinball life)
1-3/4" Forstner Wood Boring Bit (local wood store)
Drill
Template for drill hole (scrap wood)
Deep clamp or something to hold the template (harbor freight)
Budget to replace with NOS field if you F it up (bank)
Time to swap a playfield if you F it up (??)
Stones big enough to drill into a playfield

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#2 3 years ago

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Final Result

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#3 3 years ago

1. This project looks awesome.

2. 88 plays/day since July 2014? Holy crap.

#4 3 years ago

Did the mylar wear off on that area?

#5 3 years ago

The main issue is the original cores mushroom out and dig into the wood around the core causing the wood to weaken and chip like this one did if not replaced regularly. The mylar eventually tore up when the wood did below it.

#6 3 years ago

Nice job man, will try that on my Indy (Stern)! Thanks for sharing!

#7 3 years ago

Very cool....thx

#8 3 years ago

Nice job, thanks for sharing.

#9 3 years ago

very nice job!

Any issues with fitting the new style core/bracket form underside?

Also, with the old cores, can you just pop it out and file flat and reinstall?

#10 3 years ago

Awesome work! I’ve often wondered if this could be done...

#11 3 years ago
Quoted from Chrizg:

The main issue is the original cores mushroom out and dig into the wood around the core causing the wood to weaken and chip like this one did if not replaced regularly. The mylar eventually tore up when the wood did below it.

I take the magnet cores and put them in my metal lathe and re-cut the surface and sand smooth. It works great and the cores look brand new when done and they can be re-cut several times. At $10 ea. for new ones, if you have to replace them often that can get pricey.

#12 3 years ago
Quoted from Whysnow:

Any issues with fitting the new style core/bracket form underside?

No issues as it uses the same bracket underneath

Quoted from ita47:

I take the magnet cores and put them in my metal lathe and re-cut the surface and sand smooth. It works great and the cores look brand new when done and they can be re-cut several times. At $10 ea. for new ones, if you have to replace them often that can get pricey.

I have a friend that works at a machine shop do some for me like that. I've been looking into metal lathes and looks like I can get one for $500 that will do it and that will prob be a purchase soon as I have a few that I need done.

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#13 3 years ago

What's the earnings on 125k plays?

#14 3 years ago
Quoted from Trekkie1978:

What's the earnings on 125k plays?

Not as much as you think. My pins are .25 per play and tokens are factored in which are the majority of the plays on them and tokens are sold at discounted rates

2 years later
#15 1 year ago

Another one..

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#16 1 year ago

did you add anything to the lip of the art to keep that from chipping/coming up?

This is a great mod, thank you for posting...see if someone can do this, drilling a hole for BK3 magnasave should be a cake walk

#17 1 year ago

Awesome.

That’s a crap load of plays could you please post pictures of shooter lane and any audits.

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