(Topic ID: 265779)

Is there a how to guide on regraining metal?


By fossmin

3 months ago



Topic Stats

  • 15 posts
  • 12 Pinsiders participating
  • Latest reply 85 days ago by yellowghost
  • Topic is favorited by 8 Pinsiders

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    #1 3 months ago

    Did a search but didn't see anything. Are there any instructions posted anywhere?

    Thanks

    #2 3 months ago

    There's a bunch of info out there on regraining metal.

    #3 3 months ago

    Steve at PBR says just use 200 grit sandpaper in the direction you want the grain.

    #4 3 months ago

    It's not as hard as you might think.

    Trick is to only make straight strokes when sanding. Don't make an arc... try to avoid working side to side... straight long ways strokes. Use a sanding block.. even if only a small piece to move around curves, etc.

    The grit needed depends on what you are trying to clean up. Basically go lower grit to work out heavy grooves/scratches... then move up in steps to bring up the polish level you want. I find 600 grit is a nice finishing level if I want a factory grained look. I'll start as low as 150 or so if I have a really heavy groove to clean up. Just experiment and see what you need. No hard and fast rules here... because you can always move up. Just always keep working in the same straight lines.. you don't want to have to clean up extra marks.. that includes when you 'change directions'!

    Those who want a polished look will go beyond that.. even using green compound, or finishing with white on a buffer wheel. With higher grit levels and that polishing you can mirror polish if you wanted.

    The flap sanding disks are popular to speed things up (kinda expensive IMO).

    #5 3 months ago

    I used one of these and had good results.
    As with anything try a spot and see if it gives you the results you are looking for.

    https://www.harborfreight.com/4-in-400-grit-abrasive-ball-61183.html

    #6 3 months ago

    I’ve always used red scotchbrite pads. Trim to an easy to use size, work with the grain of the steel, and change out when it gets soft.

    #7 3 months ago
    Quoted from PNBLWZD:

    I’ve always used red scotchbrite pads. Trim to an easy to use size, work with the grain of the steel, and change out when it gets soft.

    I second this method. Work very good and is super easy.

    #8 3 months ago

    Try this video, may be a good starting point.

    #9 3 months ago

    There was a really good video on how to specifically do playfield ball guides. Can’t find the exact one again.

    #10 3 months ago

    That's what I am working on, are ball guides. Would love to see that video if any has it.

    Thanks

    #11 3 months ago
    Quoted from fossmin:

    That's what I am working on, are ball guides. Would love to see that video if any has it.
    Thanks

    Google is your best friend

    #12 3 months ago

    Get the coarse and fine of these 3M drill attachments - amazon.com link »
    For each pair you should be able to do at least 4 games. Well worth the money.

    I bring all the ball guides to the vice in my garage and secure them, go over all of them with coarse, then switch out to fine, then wipe down and wax.

    #13 3 months ago
    Quoted from dudah:

    Get the coarse and fine of these 3M drill attachments

    Is the "coarse" the medium one? couldn't find any other...?
    amazon.com link »

    1 week later
    #14 86 days ago

    Since i had some off today...

    Normally i just use a pass on the buffer wheel with green compound to get the light stuff out. But if you have some deeper stuff yiu can just use sandpaper and follow up with more levels as needed.

    This piece still showed some finish variation after the buffer...

    B845E906-A1EF-4486-BA47-82271F188715 (resized).jpeg

    About 10 seconds of 400 grit sandpaper by hand... Gives

    38DAB03B-FC03-453E-9BC4-0BFA102F6D78 (resized).jpeg

    These are not cleaned... just as i an sitting at the bench

    Another... beforeCABE3618-2B16-41EC-BA00-58344CDA3A9E (resized).jpeg

    After
    5BAE7C1F-90E3-4229-933A-A197DFA41265 (resized).jpeg

    You can follow up with 600 if you want.. or just use as is

    For deeper grooves... just go heavier and then back up to remove the deeper scratches

    #15 85 days ago
    Quoted from eyeamred2u:

    Try this video, may be a good starting point.

    That lockdown bar looks like 80% of the lockdown bars I've seen. He is worried about not being able to "save" it?!

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