(Topic ID: 144886)

Polishing/Tumbling Plastic Posts


By Mahoyvan

3 years ago



Topic Stats

  • 24 posts
  • 16 Pinsiders participating
  • Latest reply 3 years ago by johninc
  • Topic is favorited by 6 Pinsiders

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There have been 12 images uploaded to this topic. (View topic image gallery).

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#1 3 years ago

So I'm working on restoring my first EM/Woodrail and have a pile of plastic posts that look a little dull.
Is there a way to clean these bad boys up and give them a richer color?

I don't own a tumbler, but it might be something I'd be interested in purchasing for the long run.

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#2 3 years ago

I don't think a tumbler will do anything for plastic .... Just metal

#5 3 years ago

PBR doesn't have them. OP has the marbleized posts.

#6 3 years ago

+1 for the ultrasonic cleaner.

#7 3 years ago

I used to just sit in front of the TV with socks on my hands and polish my posts.

(that didn't sound right)

#8 3 years ago

"The Device" is made from a piece of 8-32 threaded rod with the threads ground off about half of it, a couple of 8-32 nuts, and a bit of stiff wire(may have been welding rod) bent as pictured....

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... and assembled....

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... and placed in the chuck of handy cordless drill.

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Grubby post placed on device.

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Soft towel with a couple drops of Novus 2 followed by a few sprays of Novus 1. Spin the post in the Novus mixture for a few seconds, then on a dry spot of the towel.

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Digital picture unfortunately does not properly show how beautiful clean and shiny the finished posts are. Drat.

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<Your mileage may vary.>

#9 3 years ago

Nice invention.

#10 3 years ago

Yup, very cool tool tip.

#11 3 years ago

Brilliant.

#12 3 years ago

Great idea!

I'll be making - The Device, this weekend!

#13 3 years ago

Part 2: accessories for The Device....

The small black object is a scrap of beerseal. This provides traction. The other item is a cheap paint brush with the bristles cut short.

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Spray the brush with Novus 1 and clamp the brush in a vise, screw it to a wall, or get a volunteer to hold it. Put beerseal scrap on device, followed by a ringed post coated in cruddy wax residue. Hold the post to device with a finger and the towel.

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Spin cruddy post against brush and watch the shine appear almost like magic.

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#14 3 years ago

You can flame polish these too after cleaning, but be careful. They have a pretty low melting point. Its kinda funny to see them sag in to themselves when you get them too hot.

#15 3 years ago

The brush is a great addition. I might have a simple alteration to design, but I'll post some before and afters to confirm the most excellentness of The Device!

#16 3 years ago

So do people have both a tumbler and a ultrasonic cleaner? I was thinking of getting a tumbler because I thought it could clean both metal and plastic.

#17 3 years ago

I have 4 tumblers, and 3 ultra-sonics.

#18 3 years ago

What do you use for the Ultrasonic? I picked up a cheap one once and got what I paid for. Also what do you put in it for solutions?

#19 3 years ago

Tumbling plastic will just scratch them up giving them a dull appearance.

#20 3 years ago
Quoted from Taxman:

What do you use for the Ultrasonic? I picked up a cheap one once and got what I paid for. Also what do you put in it for solutions?

I really like the Ultra Dust from Comet Pinball.

http://www.cometpinball.com/ULTRADUST-p/ultradust.htm

See the post I linked above and you'll see a lot of different options for additives.

#21 3 years ago
Quoted from dmbjunky:

So do people have both a tumbler and a ultrasonic cleaner? I was thinking of getting a tumbler because I thought it could clean both metal and plastic.

An ultrasonic is a CLEANER. It blows out crap from the crevasses and such.

A tumbler is a POLISHER. It brings surfaces up to a high polish (it can remove corrosion too, if you use the right media).

#22 3 years ago
Quoted from terryb:

I really like the Ultra Dust from Comet Pinball.
http://www.cometpinball.com/ULTRADUST-p/ultradust.htm
See the post I linked above and you'll see a lot of different options for additives.

By page 2 of that thread those guys were one-upping each other into cleaners the size of a dorm fridge. I'll have to look into that some more, but keeping it under control.

#23 3 years ago

One thing that has evolved over time to make it more confusing is the term "tumbler". It seems they call everything a tumbler nowadays.

This a tumbler in the traditional definition. It rotates and tumbles the parts and the media inside a cylinder:

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The device below is not really a tumbler even though a lot of people call it one. The proper term is "vibratory polisher". Some companies still refer to them correctly but a lot nowadays just call everything a "tumbler".

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#24 3 years ago

Just to avoid confusion, this probably won't work for you:

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