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AURA: Motor Attachment Blocks

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  5. AURA: Motor Attachment Blocks
5

Jij
Entry ID #: 3921
Created: Wed, Jan 11, 2017 8:04 PM

AURA's entry to the Make It Real CAD Engineering Challenge: Motor Attachment Blocks. AURA decided to use Autodesk Inventor Professional 2017 to tackle one of the most basic but frustrating issues talked about by teams when building VEX robots – attaching motors such that they can be easily removed without the hassle of dismantling other parts just to reach the motor. Please read the report for full information about our design, why we created these, and how.

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Report (pdf)

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Comments

   Jij on 01/19/2017

@robbin847 Thanks! The shafts actually spin quite nicely through the hole - because the motor is perfectly positioned due to the way it is supported, unless the shaft was bent it never even touches the hole. Also, it helps to get around that nuisance of trying to push a shaft into a motor when the motor isn't positioned quite right - the studs on the bottom hold the block in the exact right position, and the motor is then help precisely where it should be (makes the job a whole lot nicer and easier). We made the hole slightly bigger than the size of a bearing block's hole, because like you, we were slightly concerned at first - seems to have paid off.

   robbin847 on 01/17/2017

I like this a lot. At first I thought this looked a little over complicated but after going through the documents it looks pretty simple. The only real concern I would have is if the axle grinds against the 3D printed part but that does not look likely to happen. It does take a little more space than simply mounting your motors but I think the benefits outweigh that slight issue. Solid job on the CAD.