3D Printed Bottle Lid and an Engineering Challenge

 

This is the companion print from the bottle exemplar that one of the students has been working on in their own time.   Having spent a crash course on design and Tinkercad in the past four weeks (in the afternoon)

Shaping of the matching lid to pair with the bottle was relatively easy, although the student got the size perfect by putting a hole into the top and then using Tinkercad to remove the hole, make it into a solid object and then use this as the basis for their design.

The challenge is coming the shape of the 'thread' that is on the inside of the bottle top and prominent on the top of the bottle.   Both of these elements need to work in conjunction with each other to allow the bottle to seal.  At present the lid sits on the top perfectly.

However the lid is sitting in place, rather than being screwed down.   The bottle itself is eye catching but the student need to identify a way to solve this engineering challenge.

The lid in its current form has a 40mm and 45mm version, and is currently using 11g of filament.   It is costing $0.28 to print and taking sixty seven minutes to complete the print.

The student responsible for this design is an eight year old working independently in their own time to complete the project.