Backbox planning done

Pretty big update this time.
We read many build logs and tried to figure out the best solution for our backbox. The main requirement is, to have everything as accessible as possible. In case a monitor is broken, or the glass is dusty we'd like to be able to replace it easily. That's how we came up with a "wooden lock" solution to hold the backglass TV in Place.


Here's what it's gonna looks like:

For the Backglass, which will also be a 6mm lexan glass pane, we'll route out a 6mm wide, 3mm deep rail to slide the lexan glass in from the top.

Lexan glass pane in the routed rail

To be able to change the backglass if it needs to be replaced because it's scratched or stained, we'll put the top panel on a hinge.

Backbox with top opened

We would have prefered to open the backbox door from the left to the right, but that's not possible as the backglass TV must be able to slide out, so now the door will be opened from top.

Backbox door opened

Here's a view from the backside where it's easy to see how all the mounting is done. I've placed the speakers of the 2.1 Sound system already to see if there's enough space. There'll be a more detailed post about the sound system later. The speakers need to be placed on a 26mm wood board so the speaker is centered in the speaker holes.

Inside the backbox

First, let's have a look at the backglass mount. There'll be 2 20 x 30 mounting rails with support beams of the same size. The TV isn't that heavy, but we'll better be safe than sorry. The rails are placed on 20 x 30 x 30 wood pieces which are screwed tight in the backbox side panels.

Backglass mount

On top, there are the 20 x 20 x 50 wood locks, we've mentioned. They'll be screwed in the wood piece behind with a M6 screw acting as pivot point, so they can easily be opened. Here's a picture for better understanding.

Backglass lock

As we don't want to have the TV leaning against the lexan glass, there'll be a 3mm aluminium plate screwed at the front side to hold the construction locked in place. So the whole construction can go nowhere, but backwards if the locks are open.

Backglass mount front view

Backglass mount detail view

Now to the DMD monitor mount. We're going to use a 19" Samsung Syncmaster 901B monitor, which we got used for 25 Euro.

19" DMD monitor mount

For the mounting rails and the support beam, we're also going to use 20 x 30 wood bars. The mounting construction for the mount itself will be 20x20.

As the TV will lean against the speaker panel, the only effective force acting against the mounting will face downwards so this construction should hold everything tightly in place.

On the side view, the 3 20x20 wood bars holding the mounting rail and the 20x20 foundation is visible. The foundation will spread the force from the monitors weight more evenly and also help making the 3 wood pieces more sturdy as they will be screwed from beneath too.

Detailed measurements of every single piece will follow up in the next post.