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Feb 22, 2021 20:40:36 GMT
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Hi. I'm picking up a plasma cutter to use on my bmw. I was hoping it would be ideal for replacement of the wheel arches if I can create a hand guide to follow the profile. It's a good old machine not a new one. Any thoughts? Thanks jed
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Feb 22, 2021 20:51:12 GMT
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I think I'd rather use a cut off grinder with a 3" disc, you're going to shower everything behind the panel with sparks and slag.
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slater
Club Retro Rides Member
Posts: 6,390
Club RR Member Number: 78
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Using a plasma cutter slater
@slater
Club Retro Rides Member 78
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In theory you should be able to do it. In reality I don't think you will get great results tho. It will help if you clean the panel off first and use a decent guide which keeps the torch height fairly even.
I use mine as little as possible. Good for cutting up scrap or thick stuff when theres no better option but i don't use it on bodywork.
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Feb 23, 2021 17:01:11 GMT
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Thanks for the replies. Will use a grinder then. Its handy to have in my garage as might do something in the future that needs floor pans or something.
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bricol
Part of things
Posts: 282 
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Feb 27, 2021 14:26:15 GMT
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Try it away from the car - by playing with current and air pressure, you should be able to get a nice clean cut with no slag. Theres a few videos out there showing how to do it. And its not as though a grinder doesn't fire a whole lot of red hot particles away from the cut . . .
Wouldn't be without mine. A lot nicer, quicker, neater than slitting discs in a grinder once set up. Make something to run the torch along and you will get a neat cut - try it freehand without a lot of practice and it will look terrible.
If its an old, or previously used one, get some new consumables for the torch - they make an amazing difference to the neatness of the cut.
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