Walking Circuits

A project log for PCB Robot

A tiny robot with flexible PCB legs!

Carl BugejaCarl Bugeja 12/09/2018 at 22:174 Comments

MKII test video! 

Now that I have proofed that the idea can work out, I can start designing MKIII. 

PCB Robot MKIII will be made from just a pcb, magnets and a battery. This cheap robot will be ideal for swarm robotics.


davedarko wrote 12/09/2018 at 22:22 point

might be a stupid question, but can you double up the flex boards? glue them on top of each other and make a bigger coil?

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Carl Bugeja wrote 12/10/2018 at 18:08 point

Hi dave! :) the magnetic field of two coils against each other would be too weak to produce any flexing. I'm able to produce that behavior because although the coil's magnetic field is weak, it's still enough to react to a magnet which have a much stronger magnetic field. 

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davedarko wrote 12/10/2018 at 18:31 point

I meant it more as: having a 4 layer coil instead of a two layer coil

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Carl Bugeja wrote 12/10/2018 at 18:36 point

aa ok.. yes I could glue them together but resistance would double and it will be slightly less flexible.. Using a Four layer flexpcb you could have the same number of turns in a smaller area but it is much more expensive than 2-layer and the minimum thickness is usually around 0.3mm

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