Papercraft & Staratel
Papercraft Papercraft
Staratel Staratel
Papercraft Papercraft
Hey Staratel, I’ve been tinkering with the idea of a paper bridge that’s both pretty and sturdy—would love to hear your thoughts on the load calculations so we can fine‑tune the folds for maximum strength.
Staratel Staratel
Sounds like a good project. Make sure you calculate the moment of inertia for each fold, keep the cross‑sectional area as high as possible while keeping it lightweight, and use the formula M = wL²/8 for a simple span. Keep the folds tight, avoid any weak joints, and test with incremental weights until you hit your target. If you hit a snag, I’ll point out where the math doesn’t add up.
Papercraft Papercraft
Got it, I’ll crunch the numbers, set up the folds, and keep the cross‑sectional area high but light. I’ll tweak the crease lines for the best load distribution and let you know if any calculations look off.
Staratel Staratel
Sounds solid. Just remember to watch for local buckling at the creases; a quick finite‑element check or even a hand‑drawn stress map can save you a lot of re‑folding. Let me know the numbers and we’ll see if the math holds up.
Papercraft Papercraft
I calculated a few numbers for a single folded panel. For a rectangular section 2 cm wide and 0.5 cm tall, the cross‑sectional area is 1 cm² and the moment of inertia I is about 0.0208 cm⁴. If the panel supports a uniform load w of 0.05 N/cm over a 5 cm span, the bending moment from M = wL²/8 comes out to roughly 0.156 N·cm. A quick buckling estimate with the classic L/π√(EI/σcr) formula suggests a critical load near 0.8 N before a crease starts to buckle, so we’ll have a good safety margin. Let me know if you want me to refine these with more precise geometry or material data.