Challenge: For a nine year old student to use Tinkercad to create an original 3D Designed (and then printed) insect, in this case a butterfly.
Background: The student involved in this followed the detailed process involved in the insect creation and development that we have mentioned and posted about a significant number of times on this blog, including using the ChatGPT generated resource sheet.
The student involved in the process did so independently and submitted this print for a final printing at which point the teacher was able to view it and provide some feedback - given the dimensions and the details (including the print time, the PLA used) it was felt that there was value in producing the print in a physical form to provide feedback to students. In terms of the chronological order this print actually was one of the first that we completed.
Resources used to complete this print: Tinkercad App, iPad, Bambu P1S Printer, Bambu Blue PLA. The Tinkercad app was important as the wings featured are from the main interface and they were the starting point for the design which then came from that with the remainder of the shapes and body parts.Size: This was one of the reasons for the quick turn around for the print. From wing tip to wing tip the print measured 70mm and was 60mm long. The print body had a diameter of 20mm and including the thorax and the abdomen was 50mm long with the antenna being a further 10mm high. The intention was for the piece to complement one of the art pieces of the Pet and Calf Day Art Display.
Cost: To complete the print the print used 17g of PLA. There was minimal rafting (although as shown below even this could have been improved with the legs). This gave the print a price point of $0.30c.
As shown on the undersize of the print, shown left, the student wanted to make sure the design had the typical six legs that were present in an insect. By introducing them in the form that they did (six cylinders which were 2mm across and 5mm wide or long). If the option had been to either adapt these such as making them smaller or printing them separately and then perhaps gluing them in place this would have removed the need for support at the bottom of the print which would have further reduced the cost and the printing time.Timeframe: The print took one hour and six minutes to complete. This was significantly contributed to by the rafting or support material that was created by the legs. In theory we would suspect that it would be reduced by at least a quarter, and if you compare it other prints in the series (such as the stick insect or the ants) which took about half the time, however the balance to that is literally with the feet it sits quite well on the students desk, although it was intended to be placed onto a stick.
What we would do differently/Next steps for the students: This project when we revisited and reviewed it with the student involved checking off the list of items from the ChatGPT generated worksheet. While the items on this list were covered the symmetry that is present in butterflies was addressed and discussed and the student, they acknowledged that they needed to adapt the wings and the designs on one side and on the reverse the legs were not attached to the thorax/abdomen area and instead were in the middle of the wings.

















