Arm Brace - Scaling help

[Anonymous]

Hi Guys,

I have not had to post on the forum yet as most of the questions are answered by videos or other posts. I have a quite specific scenario I am after help with, I hope this is the right place for this question.

I am wanting to create a form of brace for a friends paralysed arm that can be used for cycling. At this point it’s purely academic, and I am just after knowing some of the best practices, I have drawn out a few sketches (using bits from other designs I have seen online) and have taken a few measurements (arm sizes etc.). I am trying to work out where to start with this, some elements are easier than others. The parts I am struggling with more are where to begin with the actual brace around the arm but considering potential for adaption in the future.

I have measured the length of the arm, the widest part of the forearm and the wrist which gives me a cone shape, I will be 3d printing this is two layers, one inner which will be with flexi filament and the outer a poly filament. Where the flexi I can obviously design flat. My question is how to create this outer rigid cone shape in F360 but so that I can make minor adjustments should it not fit correctly. I was thinking about just going for it and then just use scaling to edit, but this would not account for a singular adjustment to say the wrist thickness but not arm length. Would it then be better to have the template flat opposed to in the cone shape, if so is there a function to “wrap” this layer…

It’s probably a terrible description of what I am trying to do but any help/advice much appreciated. I have not started this yet as I figured it better to ask and get it right first time 🙂

[g-andresen]

Hi,

Following the motto pictures say more than words, please illustrate your explanations.

This makes it easier to find approaches for possible solutions.

günther