I want the experience of a 60-70 inch LCD screen on the opposite wall for the price of a 17 inch one seen close up. I know this will work out just great but no one makes the mount that I want (and if they did they'd charge me at least $300 for it. Screw that noise.
Because of price constraints, I can't fabricate any parts. I have to get everything off the shelf at Home Depot or the like. I've settled (currently) on Black pipe which is what is used for natural gas. And, I ruled out EMT tubing because of unsatisfactory (for my purposes) connectors.
Here are some of my designs:
This is my first design with black pipe. There were several other "mental" designs with EMT tubing before I started to make pictures. Rollover the image to see a few other altered designs.
I considered the use of PVC connectors because they are light and can be threaded onto the pipe a few extra turns ... but have since reconsidered because PVC is simply too weak to take the torque put on the threads. I can tear out the pipe from PVC with fairly little effort by arm strength but metal connectors are perhaps ten times stronger and "feel" trustworthy for the weight of a light monitor (9-15 pounds).
The above are arm booms which enable the user to deploy the monitor to any position within two arcs (short and long). A straight, non-adjustable boom can only be deployed along one arc and if you want it closer or further away, you have to move your position relative to the monitor. I find this undesirable but may have to settle for less if my last creation doesn't work.
This most recent design (slide booms) awaits a weekend trip to Home Depot to get some metal connectors. I'm still going to use PVC for the "slide mechanism". These won't be taking much torque. I think they will do fine in this context.
I'm wasting some cash on experiments but generally this is a tinker-toy set I'm adding to and I can reuse pieces to make other potentially useful designs. I just need a slightly bigger set ;o) I haven't as yet absolutely ruled out any basic model pending the outcome of construction with all metal connectors and tightened with a pipe wrench. I'm reluctant to make a model fully tightened because it's too hard to get it apart so I can't test the torque parameter for an arm boom without a major "commitment".
I'll have more to say later on.