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How can I get a smooth cut when cutting plastic bottles? Answered

I am cutting the bottom portion of  a LOT 12 & 24 oz soda bottles (green craft!) and I am having problems getting a smooth edge. Right now I'm using a miter saw with a very fine plywood blade in backwords. I need something that would work quickly and not too time consuming.

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Vyger

Best Answer 7 years ago

Band saw with a fine tooth blade.

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VygerVyger

Answer 7 years ago

Start the cut and then rotate the bottle rather than push it through the blade

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LeotaSVyger

Answer 3 years ago

Thanks, this helped. After cutting the bottle, I used scissors (another tipster here mentioned them) to even out the cut.

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terriradkeVyger

Answer 7 years ago

I think I might try this. Do you think I should freeze water in the bottles first?

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orksecurityVyger

Answer 7 years ago

Actually, rotating the bottle against a simple knife blade (razor blade?) might work pretty well, if you can keep it from deforming too much.

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dantheman272

7 years ago

Would scissors be too time consuming? That would be my tool of choice.

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AndyGadgetdantheman272

Answer 7 years ago

 
Scissors has my vote too.
I've found soda bottles deform too much using any other method.

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terriradkeAndyGadget

Answer 7 years ago

I was actually thinking about partically putting water in so far up and then freezing the bottles. ????

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Vygerterriradke

Answer 7 years ago

If you use the band saw then you shouldn't need to do any freezing. I would avoid getting the blade wet. Just make sure that the part that is being cut is on the bottom, on the table. That's why I suggested rotating the bottle. The blade moves down through the table so it will support the plastic at the point that it exits through the table. This way it won't distort or crush. The hardest part will be making the initial cut. After you do the first few and get the method down it should just fly through the rest.

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terriradkeVyger

Answer 7 years ago

Hey Thanks Vyger! and to everyone else also...great ideas and thanks for all your help!

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Vygerterriradke

Answer 7 years ago

This is the band saw that I have, and now its on sale for $30.00 less.

http://www.sears.com/shc/s/p_10153_12605_00921400000P?prdNo=1&blockNo=1&blockType=G1

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terriradkeVyger

Answer 7 years ago

WOW!!!! Thanks Vyger :) Again!!!!!!

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terriradkeVyger

Answer 7 years ago

Cool! Thanks for your input...I'm going to try this as soon as I can buy a band saw...Thanks Vyger

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terriradkedantheman272

Answer 7 years ago

Unfortunately for me yes....I have arthritis and nerve damage in my right hand/arm ; (

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acidbass

7 years ago

oh and then take some sand paper afterwards and smooth it out a little bit i do not condone sing and heated objects because the fumes from the plastci when heated are extremely toxic

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acidbass

7 years ago

clamp the bottle just enough to keep it steady and then make a small cut then unclamp the bottle turn it a little reclamp it and do the same until it is fully cut i suggets using an exacto knife

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terriradkeorksecurity

Answer 7 years ago

Is a Hot-wire cutter the same as a foam cutter? If so, I did try it, but the fumes were too much for me

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orksecurityterriradke

Answer 7 years ago

Hm. There ought to be a temperature at which it cuts without vaporizing too much, but... Oh well; 'twas worth a thought.

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terriradke

7 years ago

Anyone selling a band saw cheap?? LOL!