So basically I just wanted to get some opinions on the use acrylic to make a window to look inside a box.
This project may or may not even happen depending on my friends time/money situation in the next couple of weeks.
Its going to be an Alpine Type R 10" v2 in a sealed .6 cuft box. It is going in a (forgot the year) Dodge Dakota Quad Cab and will be getting 300-500wRMS, The box is going to go between the center console and the rear seats and will be down-firing, I forgot to take pictures so I hope you can visualize what I mean.
Basically we wanted to make the box a bit showy by cutting a rectangular area out of the top and replacing it with an acrylic sheet with blue LEDs inside the box. My question is... how thick of acrylic would be necessary to prevent vibrations, we are hoping to keep the cost of the project to a minimum which is why im concerned. The size of the "window" is going to be about 5 3/4" x 9 1/4". Here's a 3D mockup so you can better understand the situation:
In this pic you are looking at the front of the box (up against the back of the center console) and the top that will have the window:
Front of the box and bottom, subwoofer downfiring.
Not sure about acrylic but 3/4 plexi is always OK. Since the area is so small, 1/2 might be OK for you. The smaller the piece, the stronger it is. (for example, break a pencil in half. Easy right, now break a half in half. Gets a little tougher, now break the half of a half of a half. you get the point) 1/2 plexi is not that bad price wise. Its the cutting of it that makes it pricey. Ask them If they have a "drop" big enough for you. A "drop" is a piece they cut off of a big sheet for someone else. They pay cutting fee and you get the scraps for a lot less $$. JMO
What kind of places do you suggest for looking for these "drops"? I was just going to order a 1/2" x 12" x 12" sheet and cut it myself but if its not uncommon for some places to have scrap then Im down to look... I just have no idea where to start.
My supplier is a glass place called "Greene Glass". They sell all kinds of glass and plexi. They also carry lexan. But lexan, being bullet proof at 1/2 inch thick or thicker, is very very expensive. I am not sure in your area but try places that fix windows or cut/sell glass. Maybe even a local hardware store but they probably wont have 1/2 inch thick or thicker.
Yup 1/2" plexi will more than suffice for your needs. The stuff is incredibly strong. I paid about $30 just for my piece in my HT sub. The key is to properly secure it and maintain an airtight seal. It adds an incredible visual that can't be beat. I used 1/2" plexi and neon lights in my sub. Properly secured and sealed and I've never heard air leaks or vibration since enclosure birth.
Yea one of my main concerns was melting/cracking when attempting to work with the acrylic, which is another reason price is more of an issue because I want to get extra, in case something goes wrong on the first attempt. I have never worked with acrylic sheet so it is likely that I will mess it up lol.
Paul you have an Fi Q on 1kW for HT right? if that is correct and you used 1/2" without a hitch, Im thinking it might be possible for me to get away with 3/8". Its a 10" Type R on under 500wrms so...
I can get a 3/8" x 12" x 24" sheet for $28 shipped to my house while 1/2" x 12" x 24" would cost me about $41... I know im pinching the pennies pretty hard here but it isn't my money so. The reason im looking at 1ft x 2ft sheets is so I can have plenty of room for error btw.