Monday, May 13, 2024

3D Printed Pencil Sharpener Holder - Advanced

Challenge: To design a print to hold a pencil sharpener.

Background: We have challenged a group of students who have shown an aptitude to design to look at more complicated prints to challenge their design, problem solving and think about creating something that has a distinct purpose.   This print idea has been used before and featured a number of times on this blog in the past.   You can look at some of the examples on this blog by using the search bar here on the right - or you can click on the link here.

This challenge involves the students accurately measuring an insert into a design to house the sharpener, which can typically be purchased in bulk from a local $2 store.   We have usually started the process by giving the pencil sharpeners to the student to kick off the process.

The print shown left really shows off the progress of 3D Printers over the last ten years.   This design was completed with a minimum amount of rafting - the entire sphere design shown here was printed as a single print without any waste PLA waste.  

The print is medium level length wise but brings the ability to challenge the students thinking to introduce a significant cavity into their design.

Level of Difficulty: Medium.   There are a number of parts that need to be considered when making a print like this work, including the students considering the exit of the shavings from the pencil being able to be removed and balancing of the pencil sharpener.   

Size: The base of the print measures 120mm across and the print is 100mm high.   For the size of the pencil sharpener intended to house the design these dimensions would need to be a minimum.

Timeframe: Eight hours.   There is some potential for a reduction to increase the size of the cavity for the pencil sharpener without decreasing the integrity of the print.  

What we would do differently/next steps for the students: The student is intending to decorate this print and is pleased with the design and details.   Once this is completed we will be discussing the design with the student and looking at ways to alter the design.  A key consideration will be making sure that the design is functional with the sharpener, and given this students design ideas they should have considerable scope for revision and redesign.

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