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esk8 Structures

esk8 / Drop Down ESK8 Brackets: Stainless vs. Aluminum

August 22, 2021August 21, 2021 / Dani

Finite Elements is great only if we can put it to use. The final goal is reached by Nice colors, which is cool, but only as means. So, how the…

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esk8 Structuresaluminum brackets fem

esk8 / Drop-Down esk8 Brackets Revisited

May 2, 2021May 2, 2021 / Dani

My previous version of these brackets was embarrassing. It looked good on paper (screen?), but just didn’t hold the loads. This post is all about improving the design.   What…

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esk8 Structuresanalysis brackets drop down redesign stresses

esk8 Structures / How to do a simple FEM Analysis – The case of Slide Inline Frames

August 17, 2020August 16, 2020 / Dani

Today I’ve got something different for you. It’s not an esk8, and still it’s a cool motorized structure which we’ll analyze. “Slide Inline Frames” (by @arianetrek) replace your regular roller-blades…

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analysis assembly loads skate stresses structures

esk8 Structures / Bolts Preload – The Most Important Thing You’re Already Doing

April 10, 2020April 9, 2020 / Dani

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…

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ansys fatigue preload stress

esk8 Structures / Whooshboards Precision Truck Stress Analysis

January 17, 2020January 17, 2020 / Dani

Last 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…

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analysis esk8 esk8 structures stressese trucks

esk8 Structures / Why Hex Trucks Sometimes Fail

January 1, 2020January 1, 2020 / Dani

Recently, 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…

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analysis hex stresses structures trucks

esk8 Structures / First Experience – esk8 and the Mass Damper

December 19, 2019December 19, 2019 / Dani

The 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…

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damper esk8 structures tmd vibrations

esk8 Structures / esk8 Tuned Mass Damper – Start Tuning and Natural Frequencies

December 5, 2019December 5, 2019 / Dani

Unfortunately, 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,…

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damper gvt modal structures test vibrations

esk8 Structures / Shoulder Bolts in Precision Trucks – Stress Analysis

November 22, 2019November 22, 2019 / Dani

FEM 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…

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analysis esk8 fem structures

esk8 Structures / Skyscrapers, Longboards and Tuned Mass Dampers

November 7, 2019November 7, 2019 / Dani

Can 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…

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damper esk8 structures

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