Introduction
Not the guide you are looking for?
Go back to the ⇤ Makers Kit Build Flow.
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This procedure is the same as installing the Y Pulley you did a while ago - just with the X Motor :-)
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Insert wisdom here.
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These little things are called set screws or grub screws. Our set screws also have a blue nylon patch that prevents loosening by vibrations (the patches are a kind of threadlock)
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Notice that the motor shaft has one flat side.
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Make the top of the motor shaft flush with the top of the pulley.
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Rotate the pulley so that one set screw is against a flat side of the motor shaft. This is extremely important.
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Tighten both set screws well using the long side of the hex key. We do not want these to be loose.
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Tightening well does not mean tightening with unrestrained force. You can strip the set screw threads or its hex head if you use too much force.
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Insert wisdom here.
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M3x16
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M3x16
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M3x16
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Avoid alignment issues by tightening the screws little by little in a diagonal pattern.
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This is called "cross-tightening", and you should do it every time* you have more than one screw to tighten.
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* even when you're not building a JellyBOX
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Fancy a ▶ VIDEO?
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Tighten well.
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This is metal-on-metal tightening, so you do not have to be as gentle as usual.
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The position of the wedge on the belt is not precise - you only need to make sure to fit the belt teeth into the wedge teeth.
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You may cut off the excess if you wish.
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▶ Video: Secure the X Belt (25s)
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▶ Video: Clip the X Belt (35s)
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≃ Leave a bit less than a centimeter (3/8 inch) of the x belt intact in case you ever need to dis-or-re-assembly your JellyBOX.
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▶ Video: X Mechanical Checkpoint #1
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