Hey guys, I am well into restarting the fiberglass custom dash piece for my Uniden 520XL Pro CB radio. I know CB radios may not interest most people but, the project of fabricating a dash piece is what im really after showing.
This is what my dash looks like, its not my exact car but its the same model. The red box is where the Cb radio is going to go and the green box is where the cd player is going to be moved to:
This is a very rough sketch of what the 'vision' is
This is a "mold" that i made from the outer perimeter of the existing cd player dash kit so i can make a fiberglass rectangle copy of it.
Now, this is where it is different...before I used wood for this part but after sanding it down, the wood was very thin and weak. Here I am sanding a small slab of fiberglass to the exact thickness I need. This is MUCH MUCH stronger than the thin weak MDF wood. I am using this to make the surround part of the CB mount as well as the port that the CBs speaker will fire out of.
Here is the 'box' within that fiberglass ring. I first used hot glue to hold it in place and then I used the "Plastic Welder" epoxy from walmart to hold it to the fiberglass frame for good
This next change(no picture yet) will be to bring the speaker port up closer to the CB. There wont really be any break between the bottom on the CB radio hole and the speaker port. There will be a divider but the way it will look when its done, it will look like part of the CB mounting hole.
Here are 2 looks at the sound port that I am adding to this. the backing on the back of the little box was to give it strength while i was sanding the edges to round them off:
Here is the piece that the mic clip will screw on to:
When I wrap the piece in cloth, there are parts of the piece that will not have any support. Just so there is no problems, I filled these areas with first - fiberglass reinforced auto body filler and then on top of that I smoothed it out with regular Auto bodyfiller. The rest of the piece will be able to be reinforced with fiberglass and resin later on.
Fiberglass body filler:
Regular body filler on top of fiberglass body filler:
Next, the Microphone mount was put on:
Next, its time to wrap the piece in cloth and put resin on that to harden the cloth to make a 'shell'
This is the piece wrapped in polyester cloth. I used this because 1. its the same type of material the resin is made of and 2 its thin and stretchy; i need it to be thin so i can keep the details such as the delicate curves coming off of the edges of the boxes and mic mount. It is hard to see exactly how it curves because the cloth is stretched tightly so not as much light bounces off of it; its sort of see through up close.
Here is the setup: the resin in the mixing cup, small bottle of MEKP which is the resin's hardener, cheap brush from Walmart(im going to get a 36 pack box for $10, this single one cost 90cents so with the bulk box ill save) and a broken off part of a cheap yard stick to mix the resin/hardener. Whats not shown in here is gloes, ALWAYS wear gloves when going this. Resin is VERY hard to get off ur hands, but most importantly its not the most healthy stuff either to get on you.
These two pictures are what it looks like after its resined. I am letting this sit for a while to harden. It will take a while longer since the parts that are hardening are very thin. the MEKP makes the resin heat up to sure so since theres very little material to trap the heat in.
Next after it hardens, its time to reinforce the back side with fiberglass and more resin. After that, I smooth the face with sand paper, use body filler to fill in the rough and low spots and sand that smooth.