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Discussion Starter · #1 · (Edited)
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FYX193 Third LED Brake Light How To

Materials List:
• Acrylic Sheet (or 1/8” Thick smooth finish ABS Plastic Sheet is probably better)
• Cut & Stick Replacement Mirror Sheet (Purchased Through Walmart)
• 3M Spray Adhesive (I used the Duro-brand Adhesive, but I’d recommend 3M)
• Clear Third Brake Housing (I purchased mine through Modern Performance)
• Translucent Red (Krylon Brand Stained Glass) Spray Paint (Purchased through Michael’s Crafts Store)
• Red LED Third Brake Light Purchased through PTPerformance
• Tape (I used blue painters tape)

Tools:
• Drill
• If using the Acrylic Sheet, you need a 3/16” Glass/Tile Drill bit
• Standard 3/16” Drill bit (needed to drill through Mirror sheet)
• Hot Glue Gun & Glue Sticks
• Sharp Scissors
• Box Cutter with a Sharp Blade
• Flat Head Screw Driver (Used to Separate the Clear Lens from the Housing)
• Marker, Pencil & Paper
• Needle-Nose Pliers (Used to help cut Acrylic Sheet)
• Dremel & cutting discs (Optional, used to cut ABS plastic sheet)



Here’s a few pictures of some of the materials needed:




You will notice this is how I originally tried to achieve the results I wanted, but ended up going a slightly different route… Below is a picture of the housing next to a completed (clear) acrylic cover for the LED board. I painted the back of the acrylic cover with some Krylon Glass Mirror Paint, hoping to achieve the same mirror finish that the housing has, but as you see, the results were not as advertised.


In the next picture you can see two different acrylic sheets that I made, the top one has the Krylon Mirror Paint applied to it, and the bottom one has Dupli-Color Chrome paint applied it. Both did not achieve the mirror finish I was hoping for.


To cut out an acrylic LED board cover, just take a sheet of paper and cut it to size so that while the LED board is positioned as far back as possible in the housing the paper will lay level over top the LED board. Once you have a sheet of paper that is the correct size then measure its length and width. Cut out an acrylic cover measuring the same size of the paper. To do this you need to score the acrylic 3-5 times very carefully along the edge you want to cut with the Box Cutter (Only cut one side at a time). Next try to bend the acrylic along the scored line on the opposite side of the scored side. This will crack the acrylic and result in a quality cut along the scored line. If the acrylic is not cut completely along the scored line, then use the needle-nose pliers to crack the remaining pieces off the acrylic cover.

To drill the holes in the acrylic for the LED’s, to use a 3/16” glass/tile drill bit. This drill bit is designed to shave the hole out of the acrylic instead of cutting it out like a standard bit would do. This is necessary in order to not crack the acrylic cover, and you must drill the holes out VERY slowly because they are so close to each other. Two things can cause the acrylic to crack, excessive temperature from drilling too fast and too much pressure from pushing the bit through the acrylic. This is what took me the longest to accomplish, and with 49 holes to drill it can be frustrating. It took me 3 tries making the acrylic cover before I had a successful result. For this reason, I would recommend trying to use ABS plastic sheets instead of acrylic sheets. You will need a very stiff cover for the LED’s so the Mirror sheet will have something to adhere to without flexing. Before you start drilling, you will need to apply a simi-transparent tape (I used blue painters tape) over the side of the acrylic with the drill marks/dots. This will help stablize the bit when starting to drill the holes. It helps to have Black marks, so that you can see them through the tape. I drilled a starting point over every mark before starting the entire drilling process. I then drilled every hole out by holding the cover with one hand and drilling through it with the other hand. This will help prevent you from applying too much pressure to the acrylic, but be careful not to cut/drill your self... Remember to take it slow.

To determine where to put the holes so they line up properly with the LED’s, use two acrylic covers (Same Size) and tape the back of the LED board to one acrylic cover so that the board’s edges or perimeter is in the Exact center of the cover (Tape the corners and edges of the board). Then Tape the other acrylic cover to the top of the front of the LED board so that the board’s edges or perimeter is in the Exact center of the cover. Tape only the corners and edges of the acrylic cover. Using a Permanent Marker/pen, mark a small (Pin Point dot) over the center of every LED on the acrylic cover. Make sure you are looking at EVERY LED directly over the LED while you mark it. Since the acrylic is clear, it makes this process easier than if you used a sheet of ABS plastic. To mark the ABS plastic you would have to use a clear “Transparency” sheet found at any Office Supply store. The Transparency sheet would then have to be mounted/taped to a clear sheet of acrylic/plastic or glass so that it is stiff. The Transparency would have to have a traced outline of the ABS plastic cover, so that you would know how to align it up to the LED’s before you mark them on the Transparency. The transparency is needed as a template for the ABS because you will be drilling through it vs. a sheet of acrylic, which cracks easily…

Here’s my solution to the Paint issues with the acrylic covers… Replacement Mirror sheets found in the automotive department at Walmart.


The next picture shows the Replacement Mirror sheet and the Spray Adhesive I used; however, I’d recommend the 3M brand Spray Adhesive because this Duro brand doesn’t adhere as well as the 3M. After a while of applying pressure this Duro brand finally made an acceptable bond.


The next picture shows the Glass/Tile Drill bit I am using, I purchased it at Lowes.


Now to start the main part of the project…
Take a sheet of paper and cut it to the approximate size of the housing face. Then tape it to the housing as pictured. Take you pencil and lightly sketch lines back and forth across the edge of the inner housing where the Mirror Sheet will eventually rest.


Here is a template I came up with after cutting along the line that showed up from the sketch marks.


Put the acrylic LED board Cover into the housing and lay the paper template on top of the acrylic cover. You will notice that the paper doesn’t quite fit perfectly over the acrylic cover without bending the right and left edges up along the inner housing. To make it flush with the inner housing trim away small sections of the paper at all of the corners until you get a flush fit. The picture below shows my results after trimming the corners of the paper.

Next tape the template over the Mirror sheet as pictured.


Take the marker and sketch or trace the template onto the Mirror sheet. Then start to cut along the traced line with sharp scissors.
 

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Discussion Starter · #2 ·
Once you have cut out the Mirror cover, test fit it inside the housing as you did with the paper template to see if it fits without warping/bending. Trim away small sections until you get a flush fit. If there are any warps/bends in the Mirror the reflection will look warped as well, so try to keep it as flat/flush as possible. If you noticed mine is sitting at a slight angle inside the housing. This is caused because the acrylic sheet was measured to fit over the LED board which should both naturally sit at a slight angle. This angle is actually what you would want to have, since it will eventually face the LED’s at a slight angle giving off the optimum amount of light from a distance towards the car behind you while on the road.


This picture shows the angle of the cover, and also shows how the Mirror cover nicely matches the Mirror housing.


Next you will drill 49 holes into the Mirror Cover. Do this by taping the Mirror side of the cover, and aligning the pre-drilled acrylic cover to the back side of the mirror cover and taping the two together. The acrylic cover must be aligned to the very center (vertically & horizontally) of the mirror cover. Also make sure you have the correct side of the acrylic cover facing the rear of the mirror cover. There is a slight difference in the distance from the top & bottom edges to the LED rows. The top row has more distance to the top edge than the bottom row has to the bottom edge. Drill the holes into the Mirror cover with the Standard 3/16” drill bit. It helps to have both covers taped together and then also taped to the surface of a cardboard box or block of wood (Drilling Surface).

Once you are done drilling the holes, you will need to separate the two covers and spray the back side of the Mirror and front side of the acrylic with the adhesive. Let them sit for a minute and then apply them together as carefully as possible making sure the holes line up perfectly. If you are slightly off make your adjustments quickly.


More results of the drilled holes. Note: Don’t worry too much about the imperfections (gaps & mirror lifting/peeling) along the edges of the Mirror cover or holes. The lifting happens because the Mirror sheet has a side with a “Mirror Sticker” that can peel away. As long as the imperfections are small, you should be fine. The gaps along the top and bottom edges are also not a problem, since the clear lens will cover most of these imperfections when it’s completed.


Painting Time…
To paint the finished Mirror cover and housing, start by spraying off to the side of the items then quickly going over them from side to side making sure that you don’t stop moving in one direction while still over the item. You will notice the cardboard box has a darker coat of paint on the far left and right of the housing. This is where you should start and stop painting while moving in any direction. Paint as many “LIGHT” coats as you need to achieve the desired results. Allow one minute between coats, and shake the paint can frequently between every coat. And Do Not Paint the two items while they are this close to each other. I just have them pictured like this to show you both items…


It may help to look at the two items in different lighting conditions to see if they are color matched.


You’re almost done!
Next you will use the hot glue gun to glue the LED board to the back of the Acrylic/Mirror cover (Make sure you have them oriented in the correct way, so the wires are protruding the Upper side of the cover). The upper side being the side with the most distance between the LED row and the edge... Apply hot glue between the board and the cover all the way around the perimeter starting and then stopping near the wires. Apply glue one section or side at a time allowing for the glue to completely cool. Make sure that the gap between the board and the cover is the same all the way around, so that tension doesn’t separate the two components.
 

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Discussion Starter · #3 ·
When finished apply an extra (Thin) layer/coat of hot glue around the perimeter of the board (slightly overlapping it on the edges and corners) and around the acrylic/Mirror cover (NOT overlapping it), if you put too much glue on it will protrude from the edges and will prevent the cover/board from fitting inside the housing properly. Make sure that virtually no glue is visible from the Red side of the cover. It would be acceptable to have very little glue showing, but if no glue shows then it would be better.


Another view of the glued edges…


Next, mount the LED board/cover into the housing and pass the wires out the larger of the two holes at the rear of the housing. Hold the cover inside the housing and apply a generous amount of hot glue to the joint of the rear board and inner housing. The glue gun will not fit inside the housing so you will have to let the glue drip to required areas. By tilting the housing and dripping the glue inside the large opening, you will be able to apply glue to all sides/joints of the board. Make sure you hold the board in place and let the glue cool down before you handle it further.




Here’s the front view of the board after it is mounted and glued to the housing.


Here’s another view in different lighting conditions. In my opinion, the translucent red paint provides a nice “Reflective” look to the Mirror cover.


Lastly you will have to re-mount the Clear Lens to the housing. A Flat head screw driver helps if you gently pry at the notches near the tabs. Be very careful not to break them.


Some pictures of the Finished Results! Notice how the Clear Lens covers most of the imperfections or gaps at the upper and lower edges of the LED cover.


Now all that’s left is to mount the Light! Enjoy!!!
 

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Discussion Starter · #7 ·
BTR said:
who makes these? I got a set and alot of the LEDs are out!
I made the housing/board cover, but the LEDs are made by SRT-4Store.com
Send a PM to SRT-4Store.com I'm sure he'll send you a new one under warranty.
 

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ok he's taking care of it!

thats a ton of work... I just realized why though... its b/c you have the clear 3rd brakelight housing... I just have the stock red one so you cant really see the led board once its in.

but you did a kickass jerb!
 

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Discussion Starter · #9 ·
Thanks for the compliments!
I'm glad everything worked out for you!

BTW, I may start offering the covers in an ABS plastic version for those who want a colormatched flat cover for their clear 3rd brake light housings. I'll be working out the details in the next couple months.
 

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Could you show how to wire it up? Great looking how to
 
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