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Robola 46's BERYLLIUM BMW 323ci.


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I have been thinking things over. I forgot that i still have a set of realy ugly Focal crossover.

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At first i wanted to integrate them in an MDF board, but that's not flashy enough.

Now i'm going to integrate then completely so that i can let them come out automaticly. At least i'm going to try...

These are the filters i was talking about.

The white plastic strips will be replaced by black strips.

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I can say that this looks much better.

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The plexy boards were the filters used to be mounted on are now removed.

I've replaced them with an MDF board wich got an "uppermill treatement'

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This board will be mounted on top of the other one

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Here you can see them on top of eachother

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I made this because i didn't want the speakercables to be visible.

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So the cables are guided from one side to another inbetween the 2 boards.

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Filters mounted...

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i likes me some audio stuff...

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Here you can see that i have enough space between the board for the wires.

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On this picture you can see the tray while it is closing. The hightec stick you can see will be made out of carbon.

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This is what it lookes like when it is fully opened.

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Here i show you how far i'm going to allow it to open.

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i likes me some audio stuff...

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I'm going to cover the crossovercase with a piece of plexy. I usually allway try to use real glass, but because i want this one to bend a bit, i'm forced to use plexy.

I first intended to just order a "ready-made" piece, but instead i'm going to try to bend it myself.

the plexy has a 5mm gauche.

The first test came out pretty good.

I've clamped and than heated it with a hot air paint remover.

This is the result.

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I noticed that by heating it, it get's rough.

so i had to sand the irregularity. First with a wet nr 800 sandpaper, then with a nr 1200, to end with a nr 2000. Afterwards i polished the entire piece.

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The ends of the plexy piece were pretty deformed, but i was able to fix this.

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Then it was time to start on the big piece op plexy wich had to cover the entire crossover case.

This i had to clamp on as much points as possible, bucause i was affraid that it would easely deform because of the heat.

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than i heated it nicely so that it would easely bent.

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If you don't fixate it firmly, everything will deform for sure. Here you can see that my piece is pretty straight.

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i likes me some audio stuff...

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i've decided to use a motor .

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The frame to mount the cross over tray also needed some extra attention to make it stronger.

Now, finally, everthing works as planned.

So now it is time to complete the next step: make the covers for all this...

i likes me some audio stuff...

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As you can see, i've made a decent hinge.

The alloy plates that were supposed to mount on the sides of the tray ended up with the trash.

The ones you see on this pictures still need to be polished

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Than i used a big piece of glass to create a large piece of carbon. Clearly it still needs some layers of varnish.

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These have been cut into several pieces.

These parts will be mounted on the inside of the tray (visible when opened)

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i likes me some audio stuff...

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Afterward i made a cover for the bottom of the trunk.

A hell of a job.

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The beautifull curves a not visible on the picture.

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This piece is mounted using 5 screws, still 3 visible (for now...)

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This is the front view, for this i still have a cool trick up my sleeve, but more details lateron.

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Here it shows that my side pieces are too long, but i did that on purpose.

It als shows that the bottom needs some filling so that everything become nice and smooth.

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On this pic i show you were i've stopped with the curver. the staight mdf piece will eventually become round. i really hate straight lines!

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i likes me some audio stuff...

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In the meanwhile i've reinforced the suspension of the cross over tray and spray painted it black

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I've also modified the tray itself. As you can see, the alloy and plexi parts are no longer going all the way down.

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I've also modified the curver here and there.

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I created some nice curves on the side pannels so that they nicely fit te curver.

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i likes me some audio stuff...

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