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Anyone work with THICK plexi (I want to make a cab)
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milkit:

--- Quote from: shateredsoul on April 19, 2010, 12:21:03 pm ---
--- Quote from: billpa on April 17, 2010, 11:27:32 pm ---  Some glues are more viscous than others.  Of course you don't have to worry about holding water for an aquarium :D 



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or you can have the first fishtank pinball! think about it! You can have a seperate compartment for the pc ...

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aka water cooled system :)

would be a pita to maintain though and just asking for trouble
massive88:
Ive been itching to make an xbox controller box just out of plexi, but Im worried it would end up looking like ---steaming pile of meadow muffin---.

I also cant decide if I want to go clear or opaque black or smoked.  Im really just worried about the edges, Id want to round them out with the router, but im not sure I could get it to look good.  I guess I could test it out on some spare plexi that I have lying around.

What do you use to polish them?  I was thinking a felt attachment for my dremel might do the job, but I dont know...
Franco B:
You can round the edges nicely with a round over bit the same you do MDF etc.

I generally use a cheap 3.2mm roundover bit for 3mm acrylic.

It polishes up very easily to a high gloss shine too.

I start with 320 grit emery/wet n dry and polish it until the machining marks are removed. You can then go up the grades one by one to get it nice and smooth. I tend to go 320>600>800>1200.

Once you are there the edge should look translucent and you can then apply Novus 3 with a cloth followed by Novus 2. You should be left with a crystal clear (for clear acrylic) high gloss finish.

I did this dreamcast CP top for a customer a couple of weeks ago, you can just about see that the edge has a polished, radiused edge:

EwJ:

--- Quote from: Franco B on April 19, 2010, 04:58:28 pm ---It polishes up very easily to a high gloss shine too.

I start with 320 grit emery/wet n dry and polish it until the machining marks are removed. You can then go up the grades one by one to get it nice and smooth. I tend to go 320>600>800>1200.

Once you are there the edge should look translucent and you can then apply Novus 3 with a cloth followed by Novus 2. You should be left with a crystal clear (for clear acrylic) high gloss finish.

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Or, if you're lazy like me, use 320 to remove marks, do a quick clean up with 400 or 600, then a couple quick passes with a propane torch.
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