A new iteration of the junkbots project or more accurately the Crumble-based eggbot sub-project (https://robotsandphysicalcomputing.blogspot.com/2017/10/crumble-based-junk-eggbot.html) is underway.
Previously it has been built around a single vibrating motor, 'controlled' in the loose sense by a Crumble Controller. (https://amzn.to/3dNl09e).The new development is to use smaller vibrating motors but two of them, controlled by the Crumble. This post looks at the early stage of the development and suggests where to go next.
Currently, two vibrating motors (https://amzn.to/3mtxEy9) have been attached horizontally to half a plastic egg (figure 1), the kind you can find in dispensing machine with plastic toys, but Kinder Egg ones can also be used. A Crumble is used to control the motors separately (figure 2) by changing the motor's direction. Health warning: It is never going to accurate control but that is part of the charm.
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| Figure 1 |
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| Figure 2 |
The Crumble code (https://redfernelectronics.co.uk/crumble-software/) used to test the system is shown below.
What needs to be done?
- There is a need for the motors more securely and the same with the wires to the motors. At the moment the motors falling off and wires disconnecting are the biggest problems.
- Trying out the new model with pens to get it to draw is part of the next iteration.
- Investigating the effect of directions and speed of the motors also needs to be investigated.
All opinions in this blog are the Author's and should not in any way be seen as reflecting the views of any organisation the Author has any association with. Twitter @scottturneruon
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