cutting plastic

[Thermite Paste]

i have a small case im plannign to do a biohazard mod on, and the covers are made out of plastic. so how would i go about cutting it? can i use a normal dremel bit? or would it melt the plastic? i need to cut a big window, and mod some of the other parts. i would appreciate any help.

 

[Dr3wStx]

If you cut at a low RPM and only cut a few inches at a time and let the plastic cool before it melts, you should be alright. Normal cutting wheels will be fine the plexi, but for metal you'll get more life out of the reinforced firberglass disks.

 

[Thermite Paste]

ok, thanks a ton.

 

[MrArmyAnt]

I like medium blade jig bits set to a slow scroll setting. also use lube like a thin oil, it keeps it cool, and kindof makes the ends look more finished. i also have a 10 inch table say. I bout a 7 inch blade with tons of teeth, and i use wd-40, and it cuts acrylic perfect every time.

 

[Thermite Paste]

hmm, i only have a dremel, would the wd 40 thing work with that?

 

[Dr3wStx]

hmm, i only have a dremel, would the wd 40 thing work with that?

I don't see why not

 

[Thermite Paste]

ok thanks, i just dont want to mess up my dremel

 

[XeRo_Dark]

id say to go with the jig saw, it will reduce the risk of melting the plastic as you cut it with a dremel bit.

 

[dwayne001]

DONT MELT IT. no matter the protection, the smell is awful....too awful for words.

ugh, ugh, bad memories...

AHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH!!!!!!!!!!!










that is all.

 

[wayne]

DONT MELT IT. no matter the protection, the smell is awful....too awful for words.

ugh, ugh, bad memories...

AHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH!!!!!!!!!!!










that is all.

its not THAT bad.... i can hold my breath for a while

*body falls*




just use the dremel at a low rpm and you'll be fine... i use dremel cutoff wheels with my drill that spins at 1200rpm max and it melts plastic so maybe about 500-800 rpm or less would be good but that takes some time

 

[Thermite Paste]

ok thanks again guys

 

[kuyaglen]

I've cut Lexan and Acrylic with a special circular saw blade tip that goes on a Dremel tool.
I've also cut Acrylic using a small battery powered circular saw to cut a long piece (used a wood
saw blade). A hand held hack saw works pretty well also, just be sure to have something of
substatial gurth to guide what ever blade you use.

Also be sure to practice first, and go slow.