are sumps pretty easy to build? i think i'm looking for a sump/fuge combo. i guess i could do separates though. really only beginning to decide. i guess you just buy the acrylic and cut and weld, huh? is there much more to it? any diy plans out there you're familiar with?
Well, I built our 336g tank with 1/2''. Would use 3/4'' next time if the tank is over 26'' tall though I think. Just one thing is the most important make sure the edges you glue are square and smooth. The plastics guy told me that the table saw is smooth enough. NOT!!!!!!! Dont fall for it, not a pretty glue line
I have found that a 60-tooth blade works fairly well alone, but for better results an 80-tooth blade is better although far more expensive.
According to an article I've read, one blade that works very well is the "Freud LU-94-10". This article also suggests using a zero clearance table saw insert and a pair of blade stabilizers as well.
Since I don't have the kind of budget to buy all this stuff just for the occasional project, I just use a standard 60-tooth blade making sure that the cuts are made at a steady pace to avoid burning the acrylic. I cut the pieces just slightly oversized and use a flush trim router bit made for acrylic (from Tap Plastics) to make the edges nice and square.
The less precise your original cut, the more sanding, planing, or routing you will have to do. If you are using the Weldon 16 it doesn't have to be perfect. If you are using the capillary method (preferred), you will want perfect cuts.
Any of the guys at a local plastics shop should be able to set you up with equipment and advice, and have always been a good resource for me.