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Log V: The Pandemic Strikes Back

A project log for Open Source Spherical Motor

Development of a an open-source, Arduino-based spherical motor to promote omnidirectional drive systems within the open-source community.

alex-dunnettAlex Dunnett 03/22/2020 at 09:540 Comments

In a week things move fast!

Since my last log the university has shut-down almost entirely (extending and then moving forward the Easter holidays) and the chances of actually manufacturing my design look increasingly slim ... Not least because I'm already at my budget limit .... lol.

There are still ways in which I can manufacture my project (and the DXFs and STLs are ready to go) but if it does happen then it will be considerably later than I had anticipated.

The Path Forward

Need to have a little google hangout with my supervisor on Monday, but the avenues I could put more time into are as follows:

1. Get as much to the ready-to-manufacture stage as possible.

To compensate for the lack of manufacture this could be expanded to include a camera rig for detecting the speed of the motor or developing additional performance tests and the C code to allow them.

2. Make an educational video detailing the project, how it works and how to go about making it.

- This is quite appealing to me as I've got a fair amount of experience with Blender, SolidWorks Visualize and Adobe Creative Cloud. Also love making videos :)

3. Double down on the Numerical Analysis with Ansys Maxwell.

Something I've not talked about too much recently as it really went on the back burner in order to get this thing made but there was always a plan to do a full numerical analysis of the system using ANSYS Maxwell. I ended up running into a few issues with it so I focused on the analytical model but I should probably start to re-focus on that.

- These are just a couple of preliminary mock-up renders to give the basic idea of what each set-up will look like. The glaring issue here is that the winding and consequent wiring set-ups are not included. That is certainly the next and most immediate step, not least because the design will probably have to change a little (particularly for the BLDC version) to accommodate this.

Flux Test

BLDC
Induction

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