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May 20, 2021, 02:40 AM
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Heat sink attempt 1


The journey began with the only aluminum sheet outside China. It was too thin to be very useful, but the alternative was a 3 week boat delivery. A 3D printed stencil & a lot of extra drilling got it to fit. It had a few sharp corners & is a bit low under the chassis. Just a matter of making a new 3D printed stencil with the desired shape.

Installing the motor module with heat sink is a truly awful experience. These motor mounts have continued to have farsteners coming loose. Using CA glue on PLA as threadlock was a failure. It held up, but claimed its 1st farstener. The next step would be using loctite on PLA, which doesn't bode well.

The existing farsteners may be overloaded. If the motor mounts extended all the way under the ship & attached to each other like a belt, it might hold up better. 2 farsteners could go under the ship & farsten the 2 motor mounts to each other. Then 2 more could go on each side, above the motors where they would be easier to access.

The traction module is due for a major refresh, along with new H-bridge boards, higher voltage capacitors. The steering module has been surprisingly trouble free, despite being the leading edge of the bashing.
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May 21, 2021, 12:01 AM
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If you could find a way to blow filtered air from the inside out through the motor winding you coud provide adeguate cooling and prevent dust and stones to enter the motor.


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