Ohm Walsh Micro Talls: who's actually heard 'em?

The top plate is growing in complexity and thickness, more layers, more damping
and by this point I would call it bullet proof...
As you can see in the image I made a layer of clay ( yes yes I know it's colorful ) but my 
supply company had a super deal on the colored ones and it's free of sulfur so I can add silicone in the mix later. To lock in the clay I used some carbon fiber sheeting I had sitting around and to dampen the sheet I'm using the checkered neoprene which allows glue to saturate both sides and dampen the interface with the steel and aluminum layers.

Tomorrow will be the first day for bracing.....yeehaa
I was going to use some CF material I have left from another project, but it would take some 
extra time and money as the plates needs to be cut with a water jet. The idea would be some material that can be bored with a forstener bit and possibly jigsawed making it easy and fast. 
So Im stoked and excited as my ideas are coming to fruition, and who knows it might sound
fantastic when all is said and done...

check the images out, before I install the Walsh driver I'll add a layer 
of foam over the CF to quell any reflections.

https://www.flickr.com/photos/147883144@N08/shares/996oGG

Now I'm going for some Tylenols........🇸🇪

Peter, that is a lot of work!
I hope it all turns out well.
After all this effort, I will be interested to hear the result.
Thanks for the photo links; that helps with the visualization.

Its 2:30am and I can't sleep...oh well

After considering the type of cross bracing I want to do, I thought to my self, what's hard, stiff and easy to machine? Got to be easy to
cut, glue and cheap. I was going to use Finnply, great stuff, looks gorgeous when finished.....But really, the idea was to utilize less expensive materials in the cabinet that can be found at HD or Loews. So I will use this tempered underlayment 1/8" thick hard as nails and stiff.....PERFECT.
I'll make a sandwich construction of the board and a mix of different
soft materials, it'll be easy to cut, drill and shape with a router.
I did find some aluminum extrusions from another project in the back so I'll use that for corner bracing (why not it isn't costing me much). 

Any way back back to sleep......🇸🇪

After a few cup of Joe's.......I'm up

The problem with being semi-retired is that I have way to much time
on my hands, I'm not complaining or bitching about it, but My mind I kind of welded to the project at hand and with that nothing else gets done. 

So in the middle of the night right after the last post I had an idea.
You see the image of my vacuum pump for composite work....You can see were this is going lol 
Damn I really wanted to shy away from the expensive stuff, but a few layer of CF won't kill the project money wise, plus working with composites is fun as you can make shapes that otherwise would take a rapid prototype machine or a five axis machine to produce.

There might be more this afternoon, but I need to get stuff ready for 
the Sweden trip later this week.

Here is my vacuum pump.
https://www.flickr.com/gp/147883144@N08/59ujV5

Hej då......🇸🇪

Greetings from a gorgeous day in SoCal...

With my Sweden trip approaching in a few days I'm running out of available time for fun stuff like working on the Ohms....

After the CF ring was installed I did have one more layer to go and that was today's one hour project. The layer from top to bottom contains everything from Butyl rubber, 1/8" aluminum, 1/4" steel, neoprene, 2 types of glue, and finally some 1" felt as you can see in the image (8 layers of metal).
 The last layer was compressed and glued together with Gorilla glue. If you look closely you can see the the compression bolts pulling it all together. There is also an inside thick layer of non drying clay, neoprene, CF and Gorilla glue bonding the layers together. WOW  I know it's a lot but I do want the Walsh drive to be on a super inert
2 3/4" thick surface, no bad vibes....lol
https://www.flickr.com/gp/147883144@N08/277b0L

The second image is after the compression screw were installed. These will be replaced 
with real bolts and then Loctited with the red stuff and a big blob of epoxy to lock it in forever.
https://www.flickr.com/gp/147883144@N08/F7mV30

The third image is the first of the cabinet reinforcement puzzle.
the first layer is the checkered neoprene which allows the glue to
wet through the layer and subsequently stick to the inside wall.
The thicker part of the part is cement board, totally dead and great to work with.
https://www.flickr.com/gp/147883144@N08/56r210

Fourth image is the part installed on the inside wall, you can see the 
Gorilla glue expanding which is great as I will know that the glue is filling up all nooks and crannies:) Removing the expanded foam does take some elbow grease, but a sharp chisel and some acetone will take care of it. To keep the part from floating away you do have to clamp the piece down.
https://www.flickr.com/gp/147883144@N08/56r210

The idea to keep standing waves waves from building up in the cabinet I will stack the surfaces in an unusual pattern allowing the surface To avoid it as much as possible. The edge of the part is 
were the first horizontal brace start. It will be built up with hard board
honeycomb and carbon fiber. Attached will be a special secret sauce aluminum extrusion that will be a vibration damper attached 
with a very low shore hardness silicone ;) 

The difference between stock cabinet and the new layers attached is 
amazing. A thud and no ringing is very exciting indeed.

Here's the cabinet knocking from inside out...
https://www.flickr.com/gp/147883144@N08/90Dku7

Here's the new layer I knocked on...
 https://www.flickr.com/gp/147883144@N08/2dk21o

More to come and Im loving it.....🇸🇪