Junior Engineering Progressions Book/iPad Stand

 

Challenge: To take an online available model and adapt and personalise it.

Background: As detailed previously in a post on this blog we had a student who in their own time created an idea to tidy up what they were doing with the display and organisation of their books.  This led into a pitch to the library at school and the location of a online file, from Thingiverse, that created a stand.

The original print is shown in this series of photos in the yellow PLA and the students version is shown in the green PLA.

While this was more than functional and detailed it lacked the personalisation that we would like to see from some items, and in this instance if this item was to be placed in the school library we would also want to ensure that it was durable and easily identified.

We started the process by giving the students access to the online copy, which we had printed out.   We then asked the students to make their own version using Tinkercad, their iPad and the Tinkercad App.

We deliberately did not give the students access to the original file.   They used their rulers to measure the distances required and made some adaptations.

The biggest adaptation was with the personalisation access of the stand.   They decided in this instance to have the name of the student placed at the front and then the name of the school on the back (as shown in the photographs).   The students who are eight years old and designing in Tinkercad for the first time were able to complete the design, the construction and personalisation completely independently of the teacher and presented the finished prints for publishing.

Level of Difficulty: Low.  This is a straightforward design task completed by an eight year olds with eight weeks experience.

Size: The original design was 120mm wide and 130mm with a 10mm lip at the front of the design.  The revised version was slightly taller and the base of the design was pushed out slightly compared to the original.  

Cost/Price: The original was determined to use 136g of filament and have a price point of $3.40.   The revised student version used slightly less filament using 131g and having a price point of $3.15.  The differences can be explained by the level of 'rafting' or waste PLA between the two prints.   The angle of the second print meant that less support was required.

Timeframe: As noted with the amount of PLA used the redesign also improved the print time.   In the original we were looking at three hours with the revised version it was two and a half hours.

What we would do differently/next steps for the students: The students were able to complete the task associated with this build and did so independently, we have produced a range of similar prints over the years (which can be accessed by using 'stand as a keyword).   The lettering could have been sunk into the design instead of out, but given the use of the item and relative depth of the lettering it should not make a difference.