Trying to figure out the size of a base to make

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SUMMARY

The discussion focuses on the structural integrity of a life-size Han Solo in Carbonite (HIC) display, specifically regarding the base's dimensions and stability. The base measures 36 inches wide and is constructed from oak, supporting an 80-inch tall and 125-pound statue. Key concerns include whether the HIC should be centered on the base rather than the bracket system and if the base's width is sufficient to prevent tipping. Expert advice emphasizes consulting a local engineer to ensure safety and stability due to potential external forces.

PREREQUISITES
  • Understanding of basic engineering principles related to center of mass
  • Knowledge of structural support systems, including 'L' brackets and 2x6 lumber
  • Familiarity with weight distribution and stability concepts
  • Experience with woodworking and material selection for heavy objects
NEXT STEPS
  • Research "Center of Mass calculations for stability" to understand how to position heavy objects safely
  • Learn about "Structural engineering principles for display bases" to ensure adequate support
  • Explore "Weight distribution techniques in woodworking" for better design choices
  • Consult resources on "Building codes and safety regulations for public displays" to comply with safety standards
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This discussion is beneficial for hobbyists, display designers, and anyone involved in creating large-scale props or installations, particularly those concerned with structural safety and stability.

Gofarlow
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I am hoping someone can assist a non engineering person figure something out and is probably the oddest question you will get. I have built a life size version of Han Solo In Carbonite (HIC). It is 80 inches tall and 32 inches wide at the base. It weighs about 125 pounds with most of the weight towards the front 5 inches since the box is hollow in the back.

I have built a base that is 2 inches thick 36 inches wide and 72 inches long out of oak so it is heavy. I have centered HIC in the middle of the board. HIC will attach to two 2x6's that are attached to metal 'L' brackets bolted to the base. The top 2x6 is 40 inches up and would attach to HIC at its center.

I will probably be adding another 3/4 inch oak board under the 'L' Bracket so I can the recess the bolts.

My questions:
1) Am I correct with center HIC to the base and not the bracket system?
2) Is my base wide enough at 36 inches so an 80 inch item will not tip forward?

Thank you to anyone who can assist.
Back of HIC
IMG_2644.jpg

What HIC looks like before finishing paint:
IMG_4410.jpg

Base and bracket system I am using to attach HIC to. He would attach in the center of the 2x6's attached to the bracket.
IMG_4538.jpg

-Gary
 
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Gofarlow said:
2) Is my base wide enough at 36 inches so an 80 inch item will not tip forward?
That will depend on the horizontal force that might be applied to the statue and the distance between the centre of mass and the nearest edge of the attached support. Will there be strong winds, do you have earthquakes or might students climb on the statue?
Since, if you get it wrong, the statue could fall and injure someone, it is important that you get a local engineer to check the design of the base.
 
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