The gantry is self balancing so you just shift the screen to position and leave it there, no mean feat with a 5kg screen!
The screen is mounted in an aluminum surround for the modern, minimalist look.
What you need:
Screen, any LCD should do the trick, most have mounting hardware integrated on the back now which would save a bit of time
Screen cables, standard cables won't have the reach, so get some extensions
Various bits of wood/metal (how I have made it is by no means the only way) I used 12mm MDF sheet, 12mm aluminium plate, and 38mm aluminium pipe
Hardware (bolts, nuts, wingnuts) as required
Steel cable, this is very important, other things won't cut it, and will just stretch or break
Skills you need:
Beginner design skills, this instructable shows you how to calculate the balance lengths, the rest is just getting them to fit together
Medium engineering skills, drilling, tapping, turning, and sheetmetal work were all used in this build
Drill and drill bits
Woodworking equipment; I used a cnc router but a jigsaw or tablesaw will get you there just as well, but with a little less design flair
Lathe; optional but helpful for making up pulleys
CNC mill; again optional, but makes the mounts for the screen, and the main pole a lot easier.
It is possible to make up for a lack of skills or tools by adjusting the design, just take care to think it all through, as the most expensive bit is the most at risk too!
Screens are heavy (mine would happily remove toes if it fell), so test your gantry before putting anything valuable under it
Some screens will require mains voltage to run out along the gantry, take special care to ensure the cable cannot be pinched or damaged by the moving parts
Step 1: Screen Preparation
Most screens will have a series of holes in the back you can bolt into. Attach a plate to these, and screw some plates which locate the screen pivot in the correct position. Although I made a complete surround for my LCD panel, I still screwed plate to the back to get the requisite pivot point. You can see this in the bottom of the second picture; the part shown in the top half will come later...