Kingroon KP3S Pro Levelling Thumb Wheel & Locking Clip for the Linear Bearing Upgrade

KP3S Pro levelling thumb wheel and locking clip for the new bed carriage with the Y axis linear bearing upgrade
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updated August 4, 2024

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This is a redesign following my thumb wheel clip for the standard KP3S bed carriage here .
The thumb wheel used is neccessarily much larger than standard so that the clip can engage. The wheel was developed from the Fusion 360 file kindly published by scaryPug for a different sized bed levelling knob.

There is a “spare” hole on the bed legs between the thumb wheel hole and the leg's end. I've used this as a locator for the clip and by a happy chance the locating knob also acts as a catch to keep the clip up when it is lifted. The clip can then be pushed down into the locked position after the levelling is complete. It's a good tight fit, so I suppose this may be a function of the print parameters. 

I've included the Fusion 360 files, so if there is any variation in bed sizes from different suppliers for this linear bearing upgrade then you can modify stuff as necessary.

You'll need some 4 x M4 nuts for the wheels. I also think that a washer between the wheel and the underneath of the bed is a good idea - so 4 x M4 washers too.

PETG is the filament to use. Have fun.

 

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