#DIY #3DModellingChallenge #BackToSchool

DIY: This is a hand crank driven desktop pencil carousel which is designed to store 36 pencils, it was created for PDO's back to school 3D modelling challenge. I have made a few of the parts transparent in the assembly file to make to make it easy to see the internal mechanisms. The geometry of the base of the carousel raises the pencils upon turning the crank in one direction. When turning the crank in the other direction, it activates the sharpening element in the middle. A regular size Staedtler "metal wedge-style sharpener" should slide into the the top of the sharpener rotor with a press fit. All shavings are then caught in a removable bin. This model was created for the 3D Modeling Challenge: DIY Back to School. Video of its operation can be found here: https://youtu.be/Ur5yN7ifPtU #DIY

Pencil Carousel and Rotary Sharpener

This is a hand crank driven desktop pencil carousel which is designed to store 36 pencils. The geometry of the base of the carousel raises the pencils upon turning the crank in one direction. When turning the crank in the other direction, it activates the sharpening element in the middle. All shavings are then caught in a removable bin.

TopLayoutSketch-1

PencilCarousel-1

Pencil-1

SharpenerRotor-1

ShavingBin-1

SharpenerDrivingGear-4

spur gear_am-8

Base-1

DrivenBevel-1

DrivingBevel-1

CrankDisk-1

Cover-1

PencilGuide-1

This device I designed is able to remove small weeds nestled in between bricks and tiles. Once the top of the device is pressed, similar to a stamp, a forked arm will extend and hook the stem of the weed, it is then pulled up and removed. The device is easily aligned with mechanical indexing and spring actuation. A video of its movement can be found here: https://youtu.be/Zw4ZEGIWhaI. This was made for the #garden tools competition.

Small Weed Remover

Small weed remover

Guide_Casing-1

Inner_Fork_Guide-1

Fork-1

My name is Kai Turner and I'm a year 11 (Highschool Junior) student from Sydney attending NBSC Manly Campus. I am passionate about the fields of engineering and robotics, especially mechanical engineering. I occasionally upload some of my weekend projects here or competition entries.

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Pencil Carousel and Rotary Sharpener

Small Weed Remover