3D Printed Box - Part Two

Above: Print with group name visible

Learning Challenge: For a group of students to design, create and print a functional box that was to be the location for classroom 'reward' money for excellent behavior.   This group of students designed a slot and build this into the side of the box for the insertion of the 'classroom money'.
Background: The students were inspired by the previous box print that is described in the previous classroom print.  They were looking at adding additional features to personalise the box, the name of the group of students when working collectively is the 'Smarticles' hence the labelling in the picture.  123D Design was again used in the production process instead of Tinkercad.

Above: the names printed unsuccessfully

Task: To design a functional box that would be clearly identified as belonging to a group of students that would hold classroom 'reward money'.
Level of Difficulty: High - the students in addition to the printing of the box wanted to add additional features including the name of the group and the names of the student on the box.  They neglected to included 'rafting' in the print which had an adverse affect on the printing of the groups names.
Issues: The names on the reverse of the box was unsuccessful - Fergus had an 'e' fall off his name - Jayden rather unfortunately became 'Jaden' and some of the general lettering was untidy.  This was a result of the box being printed from the base up and without rafting - both of which would have potentially resulted in a different result.  The base of the box was successful.
Time Frame: The machine registered an initial print time of thirty one hours for the print.  The lid for the box is to be printed separately but is expected to be in the 14 hour print range.
Size: 20 cm by 10 cm by 10 cm.  The size of the box is relative to the size of the 'classroom money'.'
Process: As an 1:1 iPad School the students are utilizing the App for 123d Design as Tinkercad restricts the students to working on the desktop.

3D Printed Box

Learning Challenge - We are looking at Engineering currently at school.  As part of our unit we are looking at ways to challenge the students thinking with problem challenges.  The teacher wanted the students to focus on the hinge and the lid of the box.  To inspire the students the task was to design the reward box for students for the money offered during work in class as an incentive.
Background: The student responsible for the design and creation of this project had background working on various other projects using 3D Printers that have been detailed on this site.   Of note the teacher concerned had the project designed not with Tinkercad but with another program - in this case 123D Design.  In his opinion the program is superior to Tinkercad and should be used to allow student design.
Task: Design a box including a lid and hinge and 3D Print.  Box needs to be stable with a working lid.
Level of Difficulty: High. The box featuring the lid required working and movable parts - while the print was successful had the parts not worked a significant reprint and reworking would have been required.  The hinge was potentially difficult.
Issues: The print was successful on the first attempt. There was limited imperfection on the base of one corner but this was minor and unrelated to the design of the box.
Timeframe: Once again a 'fastprint' setting was used as it was a prototype.  This included a fourteen hour print for the box and an eight hour print for the plate that functioned as the lid.  The eight hours for the lid included the pin for the hinge.
Size: 18cm in length with a depth of 10cm and a width of 10cm.   Other parts relative.
Process: As noted the design was created by a student who used not Tinkercad but 123D Design.  As with other material on this site the Ultimaker 2 (regular) was used.

3D Printed Robotic Car

The original kit that inspired the task

3DPrintCar2016 - Kizoa Video Editor - Movie Maker

This project involved the teacher creating his own version of this car. It was inspired by an original Arduino Kitset. The kitset (completed) could be ordered online in its entirety - however the task was created to create one from scratch and 3D Print it.  The exception was the car components.  These were ordered online from a New Zealand supplier for a price of $11.80.   The pieces were then printed in stages and put together to produce the final piece.

Learning Challenge: Utilizing the 3D Printer to produce a kitset car that would work to complement the motor part of the kitset (see below).   The parts needed to ensure that the motor would work.
Level of Difficulty: As a prototype the teacher wanted to complete the task first.  In addition to the regular parts of the car additional parts to house the additional components and features needed to be made and constructed.  This has been intended as a practise run before the students complete the task.
Issues: The axel space around the wheels was not clear enough which led to a restriction in the movement.  In future print runs this area of the car would need to be addressed to allow it to move freely.

The New Zealand kitset version

Timeframe: Fourteen hours for the base, twelve hours for the front bumpers and an additional twenty hours for the remaining parts of the car.  This car was printed on the 'fast/draft' setting as it was a prototype - there was concern that it would be robust enough to handle the task of the car running however this is not the case.
Size: Twenty five centimetres in length and fifteen centimetres across.
Moving Forward: The intention with this task is for the students to complete the task individually and produce their own version of this project.