Bolts should be stressed by design in order to avoid bending stresses, premature fatigue failure and rattling. Preloading the bolts is the simplest and the best thing that you can…
Continue ReadingLast time I showed you “less than perfect” hanger design, this time let’s see one that’s more robust. Whooshboards is a small, EU based, esk8 parts shop. They have…
Continue ReadingRecently, we’ve seen some hex trucks breaking, others bending. And still others run without an issue for miles and miles. What’s the mystery here, and can we shed some light…
Continue ReadingThe bad news, it doesn’t eliminate wobbles. The good news, it makes shitty roads almost bearable. Either way, here is my experience with first (and the only) of a kind…
Continue ReadingUnfortunately, I’m going to use formulas in this (but only the really basic ones). As a bonus, we’ll explore the natural frequencies of an esk8. Second post in this project,…
Continue ReadingFEM allows you to focus exactly on what you want. This time it’s the shoulder bolt. This completes the machined hanger calcs we did in the past. The bolts…
Continue ReadingCan a standard practice with large structures work for us? Introducing the Tuned Mass Damper (TMD). There are ways to reduce wobbling and add stability to your board. Four…
Continue ReadingDo you really need the through axles on your trucks? It lowers the stresses, and it doesn’t really matter… I love my Calibers, they are basic, wide spread in…
Continue ReadingThis will complicate your structure design. But fatigue failure is important. Can you break your structure without reaching the failure stress? Wait, what? Did I fudge you on…
Continue ReadingBolts are tiny, compared to the bigger structure, and still the loads need to go through. Bolted joints are capable of transferring moments and forces, but the bolts are better…
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