Bed Lift -- LOW INFILL -- Economical

thingiverse

I wanted to elevate my bed for storage purposes because it was too low to the ground. As evident in the images, I have unique foot shapes that standard bed lifts cannot accommodate. I desired custom bed lifts but also sought to avoid excessive costs due to the abundance of plastic used in them. While browsing Thingiverse for alternative bed lifts or furniture supports, people suggested using 50-100% infill, which I deemed absurd and unnecessary. This approach would only increase the cost of plastic beyond what buying pre-made bed lifts for $20 on Amazon would cost. ***10% infill is sufficient to achieve the desired outcome.*** That's the setting I used when printing my custom lifts. I gathered various weights in my apartment, totaling 250 pounds, and jumped on a single corner of the bed after installing the lifts. The structure withstood the weight without any signs of cracking or damage. If this reassurance is not enough, consider my credentials as a structural engineer, spanning two years. Bed Lift Area = 7 inches squared PLA yield strength is approximately 9,000 pounds per square inch (psi), according to sd3d.com. 10% infill * Bed Lift Area = 0.7 inches squared Yield*Area=load 9,000 psi * 0.7 inches squared = 6,300 pounds. Assuming the load is not evenly distributed and instead focuses on half the area, and considering that the material had a subpar print quality and is at half strength, we still reach 1,600 lbf to failure, which is far beyond what can be expected in a bed setup. Unless you have a metal bed frame with feet of very small surface area, 10% infill should suffice. To provide added stability, make the top solid layer about 2 millimeters thick, exceeding the standard thickness for this purpose. I included a 4x4 square design that matches common bed lifts found online. I tailored my lifts to fit perfectly under my bed and recommend doing so to prevent shifting during use. The Fusion 360 file is available for anyone to modify according to their needs. As an additional feature, I designed a cover for the front two bed feet, enhancing the overall appearance of the setup. Note that installing these lifts solo on an old bed might lead to uneven heights, which can be easily resolved by using a scissor jack from your car to raise one side 2 inches before installing the lifts. This approach will prevent damaging the bed frame during installation. All lifts are 4 inches high, with specifications as follows: - Circle: diameter of 2.77 inches - Rectangle: dimensions of 6.68 inches by 1.03 feet - Square: dimensions of 4 inches by 4 inches ***Check out my friend's indie game company at piedraven.com.***