Hoverboard motor encoder and slip ring mount for FFBeast Wheel
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mount for the MT6701 magnetic encoder and a 22 x 7 x 17 slip ring for the FFBeast force feedback wheel.
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See v2 which adds a couple different options and hopefully makes the Fusion 360 model easier to adjust with parameters here: https://www.printables.com/model/1326250-encoder-and-slip-ring-mount-for-ffbeast-wheel-v2
mount for the MT6701 magnetic encoder and a 22 x 7 x 17 slip ring for the FFBeast hoverboard motor based force feedback wheel.
Encoder: https://www.aliexpress.com/item/1005007961159153.html
Slip ring: https://www.aliexpress.com/item/1005007993417327.html
I printed them in ABS. The hoverboard motors can fairly easily reach 60°C or 70°C so ABS, ASA or maybe PETG is recommended.
The hole in the hoverboard motor shaft was drilled 8mm but measured about 8.3 after drilling. You may need to do a test print and adjust the model to get a tight press fit. Also depending on the face of your wheel and distance from it to the axle, you may need to adjust things, hence the inclusion of the Fusion 360 file.
I've designed the encoder holder to use M2 cap screws which thread into the bearing seat. This means you need to drill the centre hole in the wheel face to 16mm (the max my stepped drill would allow with the bearing still in), then using the drill guide, drill the 1.5mm (should actually be 1.6mm or 1/16" but 1.5mm works) magnet holder mounting holes part way into the wheel so you don't drill into the bearing. Then remove the bearing (using a drift, tapping on alternate sides of the bearing so it doesn't jam. Don't try to pry it out against the aluminium wheel as the wheel may chip/crack), finish drilling and then tap the holes M2.
I've been accused of liking to overcomplicate things. To prove myself guilty of this but also hopefully make the build process simpler, I have designed two new versions of the magnet mount, one that will screw into (a slightly modified) viih's centering piece with self tappers and another that will just have bigger tabs so that the mounting holes are outside of the bearing housing (it looks like there should be just enough space for that inside a hub spacer). New version is here: https://www.printables.com/model/1326250-encoder-and-slip-ring-mount-for-ffbeast-wheel-v2
Here's a short video of assembling it:
More information on the FFBeast project can be found here:
https://ffbeast.github.io/docs/en/wheel.html