I would greatly appreciate any opinions on my design, particularly in regards to electrical safety with CRT tubes.
The TV is too wide to fit inside my custom arcade cabinet due to the built in speakers on the side. So I designed this custom case so that it could sit inside my arcade cabinet without the extra width from the built in speakers, and still be electrically safe and keep the motherboard etc. protected from bugs and dust.
Here's a video showing the situation, it's 5 minutes long;
For those who don't have time for the video, here are some screenshots (but the video does provide more info).
Exterior of the cabinet (these are not its actual colours)
Side view of my monitor case sitting inside the cabinet, with the cabinet walls hidden
Exterior view of my custom CRT case, the actual object in question
The front bezel hidden, revealing the air gap I left around the high voltage area of the CRT, which I'm respecting from the original case design. I've highlighted some objects:
These holes drilled in for ventilation are only on the sides and bottom, and covered internally with a metal mesh. The bottom floor is elevated by 5mm leaving a gap underneath at the back. The walls and front are the only points contacting the ground directly.
Just a side view with the walls removed, the motherboard (grey stuff below) is mounted on the floor of the case in roughly the original position it had inside the original case.
For lifting, these gaps in the side near the front are hand holds, and they will be covered when in use, to keep the bugs out. I hope they are far enough from the front to reasonably avoid electrocution from the high voltage area during a normal lifting movement. When lifting, the combination of the mounts and brackets (as shown previously) mounted on the pine planks, screwed into the MDF walls as shown below, is what will be bearing all the weight.
The TV is too wide to fit inside my custom arcade cabinet due to the built in speakers on the side. So I designed this custom case so that it could sit inside my arcade cabinet without the extra width from the built in speakers, and still be electrically safe and keep the motherboard etc. protected from bugs and dust.
Here's a video showing the situation, it's 5 minutes long;
For those who don't have time for the video, here are some screenshots (but the video does provide more info).
Exterior of the cabinet (these are not its actual colours)
Side view of my monitor case sitting inside the cabinet, with the cabinet walls hidden
Exterior view of my custom CRT case, the actual object in question
The front bezel hidden, revealing the air gap I left around the high voltage area of the CRT, which I'm respecting from the original case design. I've highlighted some objects:
- The lighter coloured horizontal blocks of wood are structural pine. The rest of the case is made with 16mm MDF.
- The original mounts on the tube itself are being bolted into some corner braces that I found at Bunnings.
- At the bottom are 2 MDF blocks that the tube is sitting on, which was also in the original case, but they were made of sturdy plastic
- On the left and right sides, I highlighted the screws that hold on the front bezel (hidden) these are edge drilled in and I hope, are sufficiently hidden away from the voltage around the front of the tube, since these screws directly lead out to the front, exposed.
These holes drilled in for ventilation are only on the sides and bottom, and covered internally with a metal mesh. The bottom floor is elevated by 5mm leaving a gap underneath at the back. The walls and front are the only points contacting the ground directly.
Just a side view with the walls removed, the motherboard (grey stuff below) is mounted on the floor of the case in roughly the original position it had inside the original case.
For lifting, these gaps in the side near the front are hand holds, and they will be covered when in use, to keep the bugs out. I hope they are far enough from the front to reasonably avoid electrocution from the high voltage area during a normal lifting movement. When lifting, the combination of the mounts and brackets (as shown previously) mounted on the pine planks, screwed into the MDF walls as shown below, is what will be bearing all the weight.
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