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Cutting plexiglass

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Rhine Lenhart View Drop Down
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    Posted: January 25 2006 at 8:20pm

Hi all,

I am going to make a Refugium and was wondering if anyone has had certain experiences in cuttin plexxiglass?  it will be 1/8 thick so it wont be bad, but i will need some clean edges... for obvious reasons...

Give me your thoughts, thanks, Rhine


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rocky Quote  Post ReplyReply Direct Link To This Post Posted: January 25 2006 at 8:22pm
The best method is to use a table saw, its very hard to cut it strait any other way. You could also try to snap it, but I don't have any experience with that method.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike Savage Quote  Post ReplyReply Direct Link To This Post Posted: January 25 2006 at 8:46pm
1/8 inch sounds pretty thin.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rocky Quote  Post ReplyReply Direct Link To This Post Posted: January 25 2006 at 8:47pm
It all depends on the size he is building, but I have to agree anything over 20 gallon capacity would probably be to thin.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Shane H Quote  Post ReplyReply Direct Link To This Post Posted: January 25 2006 at 9:57pm
I've used a table saw with a plywood blade. Feed it as fast as the blade will take it. It tends to melt if you don't get the right speed. With a table saw, you can get very nice cuts that can be easily deburred with a sharp blade.

Good luck.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Aquarium Creations Quote  Post ReplyReply Direct Link To This Post Posted: January 25 2006 at 10:09pm
1/4 inch should be used for that size
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Adam Haycock Quote  Post ReplyReply Direct Link To This Post Posted: January 25 2006 at 10:14pm

Would it be possible to use an old glass aquarium or other container? Ive made a sump, refugium, and 90 gallon tank out of acrylic and its a lot of work to do it right. I wouldn't use anything under 1/4". It may be hard to get strong seams with 1/8" How big of a tank do you want to build?

Use a table saw and then use a router or planer to get the edges smooth. Without smooth edges the joints will be weaker and may fail when filled with water.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote jfinch Quote  Post ReplyReply Direct Link To This Post Posted: January 25 2006 at 11:09pm

If you have a nice carbide blade on your table saw, you can get edges just as clean as with a router, ime.  I just glue right from the table saw and for the most part can get crystal clear joints.

1/8" is a too thin, 1/4 minium for a sump if I was building.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Aquarium Creations Quote  Post ReplyReply Direct Link To This Post Posted: January 25 2006 at 11:58pm

I would use weld on 3 to build it then reseem with weldon 16 just IMO

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Post Options Post Options   Thanks (0) Thanks(0)   Quote dogpoor Quote  Post ReplyReply Direct Link To This Post Posted: January 26 2006 at 11:16am
I have found a sheet metal shear to be the best, but have used table saws, score and break, and a router. all will work 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fj40fax Quote  Post ReplyReply Direct Link To This Post Posted: January 26 2006 at 11:24am
Originally posted by FIRE SHRIMP FIRE SHRIMP wrote:

I would use weld on 3 to build it then reseem with weldon 16 just IMO

That is what I have done on my latest projects, works great no leaks!

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rhine Lenhart Quote  Post ReplyReply Direct Link To This Post Posted: January 26 2006 at 7:49pm

ok the size i need to make is 36long 11wide 13high

what is weldon?

Better yet  does anyone know were i can get 1/4 or more Plexiglass at a reasonable price?

I would use a 20 long but my cabinet doors will not fit on there with that in there.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote bruiseandy Quote  Post ReplyReply Direct Link To This Post Posted: January 29 2006 at 11:08pm

13 high you can definitely get away with 1/4"

buy it in SLC here

http://www.delviesplastics.com/ACRYLIC%20SHEET.htm

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rhine Lenhart Quote  Post ReplyReply Direct Link To This Post Posted: January 30 2006 at 12:31am
i paid $5 for 5 sheets of 36x24 1/8..what if i doubled up? would this work?

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Aquarium Creations Quote  Post ReplyReply Direct Link To This Post Posted: January 30 2006 at 12:49am

I wouldnt do it

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rocky Quote  Post ReplyReply Direct Link To This Post Posted: January 30 2006 at 7:09am
It would be nearly impossible to get the acrylic to bond without some small bubles which obviously you don't want.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rhine Lenhart Quote  Post ReplyReply Direct Link To This Post Posted: January 30 2006 at 7:19am

Ok anybody have a 20 long for sale?

 


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Post Options Post Options   Thanks (0) Thanks(0)   Quote fj40fax Quote  Post ReplyReply Direct Link To This Post Posted: January 30 2006 at 12:07pm
Good call, buy the 20 long, and use the 1/8" acrylic for baffles to divide it up.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rocky Quote  Post ReplyReply Direct Link To This Post Posted: January 30 2006 at 1:11pm
I agree with fax, I think you will be alot more happy with something that has less risk of failing.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Aquarium Creations Quote  Post ReplyReply Direct Link To This Post Posted: January 30 2006 at 4:02pm
Rocky how is the New Tank?
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