Introduction: Giant 4x8ft Lite Brite!
I made a massive 4x8ft Lite Brite!!! My sisters work was putting on a youth event and asked me to make this for the event since the theme was LIT. It was a lot of hard work and I wanted to quit a bunch of times. I only had four days to finish this and I barely made the deadline but it ended up looking totally cool!
If you like this project please consider voting for it in the contest or checking out my YouTube channel.
Step 1: Tools & Materials
Some maybe affiliate links
2x 4' by 8' 1/2" sheets of plywood
1x 1/8" 4' by 8' clear plexiglass
4x 2x4's
20+ 1" 6ft long clear acrylic rods
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Black Spray Paint- https://amzn.to/2wa7kzP
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Metallic Blue Spray Paint- https://amzn.to/2Ys1qG0
4x LED's- https://amzn.to/2LGZjN8
Table Saw- https://amzn.to/2EbfBaN
Drill- https://amzn.to/2JI9j6a
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Miter Saw- https://amzn.to/2YuLG59
Glue Gun- https://amzn.to/2YuLG59
Planer- https://amzn.to/2vZ1elw
Step 2: Drawing the Grid
I got my plywood from Lowes and had one of the employees help me get the wood down since I was so short. Once I brought it home it was time to draw out the grid for the 500+ holes (this was such a crazy project) I didn't want to have to measure the whole thing out so I cheated a bit and printed out the template I had made in Illustrator. This mostly worked out pretty well. It had a center dot in each hole that I could line the punch up to. This way the holes would all be centered.
Step 3: Drilling All the Holes
This part took forever! Once I had all the spots I was gonna drill marked at the center I could use my forstner bit to drill the holes. This took me roughly 13 hours and i couldn't stop. I had to push myself to finish it and I got a crazy blister on my hand from the drill. After the first few holes are done it gets boring really fast.
Step 4: Building the Frame
I cut some 2x4's on the table saw to act as the frame for the lite brite. I cut some strips and then ran them through the planer to get rid of the rounded edges. I then glued and nailed/screwed the frame to the front piece of plywood. I also cut some smaller pieces to act as supports.
Step 5: Adding the Acrylic Back Panel
In order for the pegs to not fall out the back I got a 4x8 sheet of acrylic to hold them in place. This was attached to the frame and the little supports i made. This allowed the pegs to sit out about a 1 1/2 from the front. Obviously, I couldnt put anysupports for the acrylic behind the holes so they went all around the frame. I counter sunk some holes for the head of the screws and then gently screwed them in. A piece of the acrylic broke so I used hot glue to fix it.
Step 6: Lighting
This wouldn't be a Lite Brite with out leds. I cute a bunch of strips of led lights and soldered all of them together. my power supply wasn't enough and it would only light half of them. Since I was out of time I went and got some cheap led lights to compensate for the missing lights. This ended up working out really well and was super bright.
Step 7: Cutting the Acrylic
I had to cut over 500 of these pegs, but this wasn't as bad as drilling all the holes. I put a piece of tape on the miter saw so that all the pegs would be the same shape and I wouldn't have to measure each one. Be careful though cut some of the chips of the acrylic will fling back and cut your hand. I had a friend end up help me cut the pegs.
Step 8: Painting Acrylic
This part was cool. I used a few different spray paints to achieve the color that we wanted while still letting light pass through them. I used a sea glass spray paint that worked out the best. It was the perfect balance of light to color ratio. I then used regular spray paint for the other colors and just sprayed it from far away. This worked out ok.
Step 9: Enjoy Your Massive Lite Brite!
I love how this thing turned out. It was a lot of hard work but I think it was totally worth it in the end. I was happy with it and my sister and her boss were really happy with it. I honestly don't think I would ever do this again unless I had a cnc machine but it was cool to see that I was able to do this by hand. Let me know in the comments what you think about it or if you have any questions.
Check out my YouTube channel:

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20 Comments
3 years ago
I just started making my own instructables and really like how well you've documented yours! Impressive project :D
Reply 3 years ago
Thanks!
3 years ago on Step 3
So, boring a lot of holes gets boring really fast?
Reply 3 years ago
oh my gosh yes! It was a struggle!
3 years ago
Awesome job- but how do you block the light when there isn’t a peg?
Reply 3 years ago
In the original Lite-Brite toy, if I recall correctly, there's a black construction paper sandwiched between the pegboard and the light box so that when you push a peg into one of the holes, the peg punctures the black paper allowing light to come through that peg.
In this project, it seems that pegs populate every hole. I guess you can use pegs painted flat-black to block the light.
Reply 3 years ago
hmm, not sure if there were different models of the toy. I used my sisters hand me down as a kid. All the light shown through when you didnt have the black paper template covering the front. Once that was used and you took it off the light was showing. I did originally use thin foam to block the light but I ran out of time and it didnt really make a difference to the project.
Reply 3 years ago
You could use thing foam to do that but the original was only blocked by the paper pattern. If you were making up your own images then the light would always shine through, other option is to make black wooden pegs
3 years ago
You did amazing work by hand- thanks for posting such a great instructable.
Reply 3 years ago
Thanks!
3 years ago
It's only surface deep, but you can dye acrylic with RIT dyes. We did it in a pot on the stove as a test, so it's obviously not practical for a sheet, but it would work great for this.
3 years ago
I can totally relate! Lots of things I've built, I would never do again, but I'm still super proud of how they turned out.
3 years ago
So cool! Where did you get the acrylic rods? I'd also love to know more about the LED light strips. Did you need to make sure an LED was centered in each of your 500 holes? Congrats on finishing a massive project under such extreme time constraints.
Reply 3 years ago
I did. So I layer the piece of plywood with the holes on top of the back piece and just traces the holes on the very end. I went to a local plastic store and had to order the acrylic rods. Thanks. It was a hard project but also fun.
3 years ago
it's my first time to visit this site. i really impressed by the choice of words. Willing to read more.
Reply 3 years ago
Glad you liked it.
3 years ago
I love it. Well done!!
Reply 3 years ago
Thank you!
3 years ago on Step 9
At first I though, whats the big deal? Then I noticed it said feet and not inches! Amzing!
Reply 3 years ago
Thanks! Yeah if it was inches I probably wouldn't have even posted it.