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CactusBob 03-06-2019 11:05 PM

What to make this out of?
 
1 Attachment(s)
I am trying to make a hanging bed for my daughter, Originally I was going to use 2X6's but I wanted it to be easily transportable and long lasting. The more wood gets taken apart and put back together the looser it gets. I am thinking about Steel but I dont know how to determine the strength to ensure its safe. If I remember correctly because its supported at 4 corners the weight load on any one point is 1/4 the total so if I used a 1000 lbs total weight each corner should carry a 250 lb load. How do I determine what steel to use.The drawing uses 1.5" sq tube but then I realized a rectangular tube might carry a larger load for a smaller size. The chains, or rope will be about 9 inches from the angle on the legs. I think I got the rest of the dims on there, my GD&T class was a long time ago. I'm also not against a redesign if there is a better way. I will be putting braces across the ends but forgot them on the drawing

Thank you in advance for any help you can provide
Bob

MetalWolf 03-07-2019 01:13 AM

Quote:

Originally Posted by CactusBob (Post 732094)
I am trying to make a hanging bed for my daughter, Originally I was going to use 2X6's but I wanted it to be easily transportable and long lasting. The more wood gets taken apart and put back together the looser it gets. I am thinking about Steel but I dont know how to determine the strength to ensure its safe. If I remember correctly because its supported at 4 corners the weight load on any one point is 1/4 the total so if I used a 1000 lbs total weight each corner should carry a 250 lb load. How do I determine what steel to use.The drawing uses 1.5" sq tube but then I realized a rectangular tube might carry a larger load for a smaller size. The chains, or rope will be about 9 inches from the angle on the legs. I think I got the rest of the dims on there, my GD&T class was a long time ago. I'm also not against a redesign if there is a better way. I will be putting braces across the ends but forgot them on the drawing

Thank you in advance for any help you can provide
Bob

Inch an a Half 14 or 16ga. Square Or rectangular tubing should do it. be light enough to move easily, and strong enough for what you're making.

kbs2244 03-07-2019 04:16 PM

If you are more comfortable with wood, just use tee-nuts and bolts.

weldor2005 03-07-2019 05:36 PM

If you want steel and portability, look at incorporating bolt flanges on your mitered corners, like a steel truss building does it. Then maybe a bolt flange for the middle, or a king pin which will let the two fold up to each other.

CactusBob 03-07-2019 10:58 PM

1 Attachment(s)
Quote:

Originally Posted by MetalWolf (Post 732103)
Inch an a Half 14 or 16ga. Square Or rectangular tubing should do it. be light enough to move easily, and strong enough for what you're making.

What size rectangle tube do you think would work?

Quote:

Originally Posted by kbs2244 (Post 732153)
If you are more comfortable with wood, just use tee-nuts and bolts.

I have done more woodworking than metal but the metal is definately easier to transport

Quote:

Originally Posted by weldor2005 (Post 732157)
If you want steel and portability, look at incorporating bolt flanges on your mitered corners, like a steel truss building does it. Then maybe a bolt flange for the middle, or a king pin which will let the two fold up to each other.

I'm not sure I understand what a bolt flange is, do you mean like this? If I did do this where would the weak point be?

Thank you guys for your help
Bob

MetalWolf 03-08-2019 05:14 AM

Quote:

Originally Posted by CactusBob (Post 732185)
What size rectangle tube do you think would work?



I have done more woodworking than metal but the metal is definately easier to transport



I'm not sure I understand what a bolt flange is, do you mean like this? If I did do this where would the weak point be?

Thank you guys for your help
Bob

Bob, As for the tubing I would say 1" x 2-1/2" x 16 or 18ga. should be sufficient... or you could go with 3/4" x 2" x 14ga.

dubby 03-08-2019 09:26 AM

I've got no help on the actual materials necessary, but my question is in the manufacture of the rig. If you weld it all together, how do you plan to get it through a doorway?

CactusBob 03-08-2019 11:00 AM

Quote:

Originally Posted by MetalWolf (Post 732192)
Bob, As for the tubing I would say 1" x 2-1/2" x 16 or 18ga. should be sufficient... or you could go with 3/4" x 2" x 14ga.

I will check at my local metal yard but you may have saved me a bundle
Thanks
Bob

CactusBob 03-08-2019 12:22 PM

Quote:

Originally Posted by dubby (Post 732201)
I've got no help on the actual materials necessary, but my question is in the manufacture of the rig. If you weld it all together, how do you plan to get it through a doorway?

I never planned to weld the entire thing together. The plan from the start was to make it as safe as possible while being portable and transportable

Bob

milomilo 03-08-2019 01:23 PM

Quote:

Originally Posted by CactusBob (Post 732215)
I never planned to weld the entire thing together. The plan from the start was to make it as safe as possible while being portable and transportable

Bob

Are you planning on having a slip fit on the tube steel for disassembly?


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