3D Printed: Lawn Mower

Student designed: Lawn Mower print - 18 hours

Challenge: To produce a working model of a Lawn Mower.
Background: A presenter who had heard of the 3D reputation of our school wanted to produce a series of props for presentations, the pieces that he was looking for needed to represent actual objects that people were familiar with.   The props needed to be as life-like as possible.
Task: Student created a representation of a lawn mower using Tinkercad from scratch.
Level of Difficulty: High - the student was creating not an original piece but a copy of a common everyday item.  It had to be recognisable and plausible.
Issues: Rafting caused the wheel to be removed when the rafting was removed.  The filament used was not standard filament (see below) and as a consequence is more difficult to remove.
Size: 18cm by 10cm by 15cm

Timeframe: Regular print settings - eighteen hours.
Process: The student was using the Beta Version of Tinkercad, which had just been released prior to the project being completed.  The print was completed using a different filament from previous prints.  Previously we had used a cheaper 'regular' filament - the Innofil was approximately 50% more expensive but it was clearly visible in the quality of the final printed version.  After consulting with the classroom teacher involved this filament would be preferred for 'show' or demonstration pieces.  The student designed the print from scratch including all aspects of the design.
Reflection: The student responsible for this design has shown talent and creation right from some of his first projects when he was Y5.  He is currently a Y6 student, who is ten years old.  He is able to individually create designs with this detail using free software.  

3D Prints: Student Improvements and Refinements

Above: Token Box version 2.0

Above: Token Box with tokens.

When the students start utilizing the technology they are showing consistently that they can improve designs that follow later in a sequence.

Already we've recently documented on this site projects such 3D Printed Student Token Box, since this print another two designs in the sequence have followed - the latest of which is shown on the right.

Above: 'Fish' Designed Cookie Cutter

The shape has changed considerably from a box like shape to a circular dish, also the lettering which was sunken in with the initial design has now evolved into having it standing out from the print.     The size and most other details contained with the original post are all still relevant and therefore we will not be posting this in its entirety.

There are a number of 'Cookie Cutters' currently in production.   The first of these was the 'Golf' themed Cookie Cutter detailed in a previous post.   Following this initial production a group of students have produced different themed versions of this creation, which have allowed the students to be creative and also produce something unique.  There will be a separate post on this material, featuring a range of student designs shortly.

Finally as previously described the students who are competing in the Junior Robocup Competition involving Lego NXT/EVO3 Robots have been utilizing the 3D Printers to create props for the performance.   Following the initial creation of a few props students have started to realise the potential of the machines and how to integrate them successfully.   The latest prop to appear is the sign featured to the right.  The sign design initially was created by having the students write onto cardboard and then have it sellotaped up.  Upon seeing some of the props that were being produced the students created this sign for the performance.   It was created by a Y5/6 student, using Tinkercad and the regular production process.  The sign is 15cm long, 12cm high and was produced on 'fast' setting over a five hour print.  The sign is requiring to be re-printed as the lettering was produced individually on a ledge, without rafting.   The lettering was put together individually and dragged out of Tinkercad and as a result isn't uniform in size.