2015-12-13 (Su) ESPeri.Impass

Plans for an implantable compass have been repeatedly pushed aside in favor of easier projects. This project wasn’t abandoned but I come back to it in my head as I gain new skills and become more proficient. This project had been in the works for months before I got a 3D printer and I figured the printer would accelerate the process. What I didn’t account for was my lack of modeling skills. I got to thinking about his project and the shape of what I would need to make a usable compass. With my modeling experience I had the ability to filter my ideas through what I was capable of creating. So, I’m taking another stab at this.

Enough background.

Designs for a compass spinner were contemplated. One of the biggest issues with prototyping this compass has been making a spinner large enough to observe and modify. Most spinners before this have been small and simple. Creating a parametric compass spinner should allow for more rapid prototyping.

The first step will be to build a compass which can be carried in a hand and felt without any additional equipment. This can be much larger than an implantable version. This may be as large as a roll of toilet paper. This model will prove that a haptic compass is possible.

After a haptic compass is created it will have to be changed to a wearable haptic compass. This version should be able to sit inside a pocket and be subject to jostling and held at many angles.

Next the wearable compass must be miniaturized and the shape will become a factor. Currently the lower leg is the desired implant location since it is mostly vertical during walking which is when the compass should be felt.

Plans were sketched for a compass spinner which would be simple to model parametrically in OpenSCAD. A base will also have to be modeled. The base will be configured to support the spinner and also be part of the haptic feedback. Collisions between the base and spinner will create vibrations which should be able to be felt by the user.

Sketch of parametric spinner

The rest of the posts for this project have been arranged by date.

First time here?

Completed projects from year 1.
Completed projects from year 2

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2015-12-10 (Th)