Software Coder's Stand Designs for a Touch Screen Display and PC: Review Needed!

[cas97]

Hello I am a software coder, I have a touch screen display and I am building a stand for it. But I am not sure if it will stand or fall! :O

Can anyone review these designs? There is a PC behind the screen. I will make the stand with welded steel tubes (not sure which size)

Display: 15 Kg
PC: 20 Kg

Thank you very much!

https://dl.dropboxusercontent.com/u/6201898/Stand/stand01.JPG

https://dl.dropboxusercontent.com/u/6201898/Stand/stand02.JPG

https://dl.dropboxusercontent.com/u/6201898/Stand/stand03.JPG

 

[russ_watters]

It looks to me like the entire thing is within the footprint of the, well, feet. Is that true? If so, you don't even have to calculate the COM to know it will stand.

 

[berkeman]

The only issue would seem to be how hard people will be pushing on the face of the touchscreen. Maybe add some extra extension to the base in the back to account for the moment due to people pressing on the touchscreen?

 

[billy_joule]

20kg PC? That seems heavy..
In addition to berkemans suggestion, moving the PC to the base will lower the COG and make it more stable. I'd also suggest gussets or struts where the vertical sections meet the base, depending on the tube you use.

 

[Travis_King]

I'd suggest using adjustable feet on the stand's bottom frame. A total of six would probably do it. If you try to stand this using the "flat" bottom of that welded frame, you'll be hugely disappointed.

 

[cas97]

Thank you all for your suggestions, I made some changes, I hope this is more robust!
Not seen in the pictures are struts and I don't really understand how adjustable feet work. But is no longer "flat" (hope I got that one right)
Also I think the feet of the user will go between the frame. You can see a couple footprints there.
20 Kg is the total weight I expect, not only the computer, but other items like tools.
Here is the image: (it seems it will stand after all)
https://dl.dropboxusercontent.com/u/6201898/Stand/stand04.JPG Also, a couple of renders of a trade show where I plan to use it, hope you like it :)
https://dl.dropboxusercontent.com/u/6201898/Stand/modelo02VIVA%202015-03-16%2019531900000.jpg

https://dl.dropboxusercontent.com/u/6201898/Stand/montaje01.jpg Thanks again, I hope I have your approval to proceed to production

 

[Redbelly98]

The struts that you say are not shown should be oriented diagonally, and not like the vertical/horizontal like the ones you do show. The structure will be stronger that way:

For the "feet", it's good to use something like the following, because the bottom of your frame, or possibly the floor where you set up, will not be perfectly flat:

Best to use adjustable ones, so that you can get all four (or six, if you follow Travis King's earlier suggestion).to make contact with the floor.