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Thread: torching acrylic edges?

  1. #11
    Constant Bitrate
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    Apr 2004
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    the flamings easy enough.. just dont let the flame stay still and do loads of quick runs over the surface... you'll find each 1 you do the more it shines.. and no chance of burning or melting.

    give it a go,.. you'll be surprised how easy it really is.

  2. #12
    Constant Bitrate
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    yeah I picked up my dad's torch last night. Tonight I plan on doing some cutting on the table saw to get a couple of pieces to practice on. I will let you all know how it goes. Thanks for all the input!

  3. #13
    Variable Bitrate SickVette's Avatar
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    tonka....do you happen to have a router? If you can cut the plexi with a router instead of the table saw you will have half the work done right then. As for polishing it a dremel will work with polishing wheels on it. You can also use an electric drill with a wheel on it.I have seen places like Home Depot selling polishing wheels and compounds. As for the grits it depends on the starting finish on the plexi. I cut it all with a router so the start finish is very smooth. Then I use 320 on a small DA then 600 wet and onto 2500 wet. Then start with the compounds. The higher grit it gets sands to the better it will look. Also you should always sand with a sanding pad or block...never with your hand. Your hand will leave waves in the surface that will be more and more apparent as the piece gets shinnier.

  4. #14
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    Yeah I have a new plunge router that I haven't even used yet. Can you recommend what type of bit I should use for the plexi?

    Thanks for the advice on the sanding - just need to find some time and I will give it a go!

  5. #15
    Variable Bitrate SickVette's Avatar
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    The bit to use depends on what you are cutting. If you are cutting circles you should use a carbide spiral cutter. If you want to cut out a shape then you need to use a flush trim bearing bit also carbide/carbide tipped. It is best to trim the plexi so that the router is only removing a small amount of material. If you are cutting 1/2" or larger you can use WD40 as a lubricant/cooling agent and it will help with giving a clean cut. I have a set of router bits that cut only plexiglass. It is important that the bit is sharp and free of any chips in the blades. Also I try to use only 1/2" shank bits when flush cutting. Porter Cable has come out with some new bits that you can buy at Home Depot and are very nice.

    I am going to be cutting alot of plexi glass in the next day or two. If you want I can post up pics of the process.

  6. #16
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    For the most part I plan on doing my major cuts with the table saw and then use the router to trim the edge to size. After that the plan is to polish - either by torch or by sanding.

    If you wouldn't mind posting pics of your work, it would be a huge help for me to see it step-by-step.

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