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ABS Plastic

post #1 of 13
Thread Starter 
My McMaster-Carr order is so far up to $250 and this is just the base materials for the cube case

I can really cut down the cost by going with ABS Plastic over Lexan. Compared to Lexan, how easy is ABS to work with? I have done little mods over the years to ABS stuff (mostly car dashes) and never had any problems but build a case from scratch is a bit different.

I am not really worried about strength as I am going to build an aluminum frame for the case.
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post #2 of 13
ABS isn't all that strong for this type of thing, is it?

As for $250 for supplies to build a cube case? I'm at a loss for words. but ti's not my money.
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post #3 of 13
ABS will work fine if you support it right not just an aluminum frame but crossing supports plastic welded are even an aluminum skelton in side the frame either way you'll have a lot of extrqa work and money to spend. so just buy the lexan and save on trouble and experimentation. Some one has to have sheets for cheaper then that though I could build them my self for a lot less with liquid hard mix Poly-Urethane and a jig. Read up on this if you really want to save money and find and alternative.just look up Urethane I use a soft 60a to make motor mounts but you can mix it in a jig and make your own hard plastic sheets.
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post #4 of 13
Thread Starter 
The $250 is not just for the sheet but also perforated metal, aluminum for the frame and other misc hardware. It will be a lot more than just a cube. McMaster is so far the cheapest place I have found for Lexan.

Making the sheets sound like some serious fun (really) but limited space where I live is going to make that near to impossible.

But thanks for the tips as it has my brain moving with some new ideas!
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post #5 of 13
Quote:
Originally Posted by nagal View Post
McMaster is so far the cheapest place I have found for Lexan.
Have you check www.usplastic.com for prices? You maybe able to contact them and ask for a 10% discount. They gave me a coupon after my first order.
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post #6 of 13
Thread Starter 
Quote:
Originally Posted by DuckieHo View Post
Have you check www.usplastic.com for prices? You maybe able to contact them and ask for a 10% discount. They gave me a coupon after my first order.
I checked usplastics and still McMaster is cheaper even with a 10% discount.

Polycarbonate Sheet 1/4" Thick, 24" X 48", Clear (
McMaster $61.18
UsPlastics $75.58 - 10% = $68.02

Polycarbonate Sheet 1/8" Thick, 24" X 48", Clear
McMaster $35.37 x 2 = $70.74
UsPlastics $42.77 - 10% = $38.49 x 2 = $76.98

I am trying also to keep as much stuff from McMaster to cut down on multiple shipping charges also.

The killer is I am going for an 18" cube which makes a lot of leftovers in the sheets. Then on top of that the 1/8" sheets are for the sides which will basically be a square frame with the center "filled" by perforated metal. I want to keep all sides one piece but I might cut strips to make the frames to bring the cost down but then have to deal with bonding them together. If that allows me to get just one sheet of the 1/8", it might be worth cost wise all the hassle.
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post #7 of 13
ah, I understand now, good luck on this.

I'm kind of out of touch somewhat on actually having to buy lexan/plexi, as I've got lots of it in various sizes and thicknesses that I've had for years. And the Aluminum frame I'm working on now, was very cheap to build. Spoiled I guess.
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post #8 of 13
Thread Starter 
Quote:
Originally Posted by lobi View Post
ah, I understand now, good luck on this.

I'm kind of out of touch somewhat on actually having to buy lexan/plexi, as I've got lots of it in various sizes and thicknesses that I've had for years. And the Aluminum frame I'm working on now, was very cheap to build. Spoiled I guess.
The frame is actually pretty cheap. Its the lexan and the perforated metal that are costly then all the specialty bolts I am using to give it that little extra something.

Yeah not having stockpiles of supplies makes it hard but I am slowing build that up so each time I do a project there is less and less to buy
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post #9 of 13
my I ask why you are using lexan over acrylic?
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post #10 of 13
1/4"?

You could get away with something thinner than that - 4 or 5mm will be fine.
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