[quote=“jtnova13, post:20, topic:6556”]
Good to know, perhaps I won’t be putting a center brace in the front. It’s technically 48.5" :P[/quote]
48.5…best put a 4X4 in center…lol you will still be fine without one. With a standard aquarium with plastic frame, most of your weight will be on the corners anyways. 48"+ or larger than 120gl would need the center support.
Gotta use a fine tooth blade for acrylic, not a rough blade used for cutting wood. You might be able to get away with using a hole saw for wood, but just go slow. Depending on the thickness of the acrylic, be careful cutting / drilling it in the cold, it can shatter or chip on you. I did it just the other day, sliced my thumb pretty good.
I’ve used metal blades to cut acrylic before, but the trick with cutting it is to find the sweet spot while going so the acrylic doesn’t melt back together. They also do make blades for cutting plastic.
I read a trick that using the wood hole saw in reverse works much “safer”. It doesn’t dig in as much greatly reducing the risk of it cracking. When cutting in reverse they suggested higher speed, less pressure on the acrylic. Google time!
I have used both hole saw bits and forstner bits to drill 1/4 inch acrylic. both heat up and melt the plastic if you go too fast. and even if you dont. but the smoothness of the hole doesnt matter. you have to use a sacraficial backing board you can drill into with the center bit and to cut through the acrylic and not spawl the back side edges… the melted plastic will mound up a bit around the hole on the flat surface. but when it cools, you can shave or chip it off with a wood chissel and sand a bit to make it flat and smooth again. the bulkhead gasket will then seat well on the cleaned face surfaces. the drilled hole will be about a 1/16 to 1/8 inch larger in diameter than the OD of the bulkhead anyway. so smoothness is not an issue.
Thanks for all of the advice people. I got one of those white milwaukee bi-metal hole saws. It says it’s good for cutting plastic. I have a template made already from when i drilled the back glass of my tank, do i need to use the pilot bit? Or can I cut it just like i’m cutting glass?
Just 2 pics today. Finally finished wrapping the stand. Decent looking plywood IMO.
And leak testing the tank (see 40 gallon breeder sump below). I probably should have done this sooner, but i wanted to make sure it held water for a few days before I start putting the overflow together.
Looks great so far. My advice on staining the stand, test a good 1ft scrap piece with a few coats and let it dry for a couple days. Alot of plywood tends to blotch really bad after stained. I had problems with this on a build before.
If it does blotch bad try using a wood conditioner before hand and that will help with the stain penetrating equally ans not blotch so bad.
Case, which type did you use? Do they make moulding that will fit over the corner? My corners are flush, i didnt leave gap for filler moulding.
Also, where is a good place to buy hinges? I’m not sure if i want the hinge visible, or if i will just put moulding around the doors and have the hinges mounted inside.
I went to the lowes for hinges and handles. Knowledgeable help is hit or miss though. You can order neat ocean related stuff too like this.
If woodworkers warehouse is still around that was a good store.
what dimensions sheet are you talking about? Home depot has acrylic sheets . you can cut it on a table saw. just use a wide tooth cross cut or rip blade. fine tooth blades melt the plastic. HD should have a bin with the glass panes with some acrylic in pane thickness and 1/4 inch or just a mm under. up to 3’ x 5’ , or at least they did last time i looked.
i have a piece of 1/4 inch clear , 18 x 9 in the garage. If you are coming to the meeting monday night, I’ll give it to you. it was a cut off left over from some old tanks i made.