Focal Beryllium BMW

yep, good guess!

Here the little test I did. When you check it out, it's quite simple really.

The spring you see, pulls the diaphragm to close. On the lever, I put a bigger plate, so I can see how long I need to make my transmittion.

The more I pull the cable out, the more slowly it close and opens, and the less force the motor needs.

I really like the speed that it opens and close now.

I just need to make a descent piece of aluminum that will stand onto the motor.

Here a picture, I'm going to make a little movie, and post it offcourse.

These things will end up in the hole of the diaphragm. First 3 aluminum bars of 10 mm thick.

Here I had to have a clean flat side of 4 centimeters aprox.

On the top of the bars you could see I screwed them, so afterwards...I disced this off..

 I divided this equaly, and tightened this on the back.

Now you can see why I needed a flat side

Once I had this, I screwed on a piece of aluminum tube of 10cm diameters.

Here the frontview, looks a bit like a little nuclear reactor or so.

This was the easy part...and now I have to make something to get in that tube.

And I think it's gonna be... COOL. (i hope)

I’ve been busy milling some rings in aluminum for the diaphragm, and believe me, many hours have passed.

It’s super easy to do so. You take a right mill, and take a little plank of mdf wood.

This plank you put on top of the mill.

By pulling the plank away, the mill gets free on the front…and here you keep on the aluminum piece.

One ring finished

This little ring will get on the inside, and I made this of anodized material. Did this to have some contrast.

The upper ring needs to be abdraded firmly now, cause I’m going to polish it.

Here you can see how it’ll look. In the centre in the middle, a logo or so will be added, but still don’t know what …

Then I started again but making the middle ring.

This was the result.

Here you can see I made a double flange.

Then I made another ring of anodised aluminum of 2mm thick.

Here you can see this piece fits into the outer flange.

Here you can see that this will all get mounted on the diaphragm

Then I needed to make the outer and final ring.

Here you can see I made 2 more flanges.

See this all mounted.on.

With a little cube of 5mm thick, I want to show you how I will tighten this  Around the diaphragm will get a lot of carbon fibre, I can stop nicely on the aluminum, and I can roll the ring against it, for a perfect finish.

  I’m pretty satisfied about the mill-work. There has been a lot of work on this, but in the meanwhile that’s long forgotton..

My last last problem with the opening and closing, I managed to solve.

I was getting sick of loving in the trunk with a normal during lamp. I had about 3 of those, and throwed them all in the bin today. No more donut hole lamp in my trunk.

So the diaphragm will stay, like it sits now. As you can see, I raised it for a couple of centimeters.

As long as I have the car, no one has ever sat in the back, so not going to let that bother me.

I kept myself busy with improving the diaphragm. The biggest problems are gone, and I'm satisfied how it all works now.

The I put it in my drilling machine, and put in the center of my mill.

As you can see, fireworks were early this year :-) but it went perfect.

Here you can see the total picture of the MDF board as it'll come into the trunk.

Underneath the spring, I taped a piece of vilt, so it can't make any noise. I'm planning of adding something around the spring to reduce vibration and noise towards zero.

 Here you can see it working when closed.

You can also see I added some rubbers, where the lever stops.

Here the inox-cable will lay into, witch stands in connection with the windowwipermotor.

This I cannot say about Marilyn Manson his performance yesterday in the Lotto Arena here in Belgium.

the loser.

I did some improvements on the diaphragm. A lot of rings I made ended up in the bin. Sometimes these things happen.

This time it was the outer ring. This one is tightened with 6 screws.

The 3 toggles where the little cup is tightened with, are now polished too.

Here you can see the backside.

This will be the frontside.

The meaning of all this is that I'm planning of working it all into one part towards the outer polished ring. Of the rest you won't see anything.

I would like to do this in carbon fibre, so I'll get a nice contrast between the 2 materials.

 This is how it sits in the car, and I've got plenty of space up and down there.

Here's the transmission with the steel cable.

the "end-loop-contacts"

Here's the motor who brings movement in all of this.

What I feared the most, is how the cable was going to roll itself on. I managed to solve this simply by putting the supply out of the centre, of the axis' motor.

this works perfectly. and believe me, I tried this many times, never  malfunctioned.

First of all I would like to wish everyone a good and healthy 2010. May your dreams come true, and have a lot of fun. In life only a few things count, and enjoying is one of them.

What I’m going to do next is to remove the amplifierbox.

When I made the aluminum box 2 years ago, I considered the fact that some changes may have come… Well, change is here…

The Precision Power amp is going out, and will have to make way for the new 2 amplifiers.

The big amount of work to get the PPI nicely covered is for the bin, but I know in the back of my head this could happen.

What’s going to happen with the other amplifiers, will be (according to me) even nice looking and even have more power.

Will sort it out.

Here you can see how the diaphragm looks, seen from the interior of the car.

You can see that the diaphragm doesn’t sit in the center of the armrest.

What you see, won’t stay this way. It all needs to get finished, like when the armrest is down, it will look nice and complety ready