Raspberry Pi 3 - 3D Printed Case

Challenge: The teacher concerned had a Raspberry Pi 3 and wanted to produce a case to keep in secure and protect it.  To do so used a combination of machines and Tinkercad.  He used a milling machine to produce the wooden lid and then used the Ultimaker 2 to 3D Print the case.
Background: This project was originated by the classroom teacher as an individual project.
Task: Produce a workable case for a Raspberry Pi3 which would protect the device but also also for the device for being fully operational.
Task: The dimensions for the project were sourced from plans available on Thingiverse, although the teacher did not use these plans, he still created an original piece in Tinkercad.
Level of Difficulty: Moderate - although this was a teacher designed and originated project students could replicate it by following the process.    The original measurements were taken from a third party and this was possibly the most challenging part of the process.

Issues: None - the teacher purchased a set of nylon nuts to complete the process and ensure that the lid was secured to the base.  The 3D Print was completed with the Ultimaker 2 (which is an upgrade kit in addition to a regular Ultimaker Printer.
Size: 9.5cm x 3c, x 6.5cm.  (which is the dimensions of a device to house the Raspberry Pi 3).
Timeframe: 3D Printed components: the base was printed in an overnight print on regular Ultimaker2 3D Print settings.  The timeframe was approximately twelve hours.  The lid was produced by a school milling machine and took two days to cut the wood.   The wood was then lacquered with spray from a spray can, and left to set.    The Plywood lid was a regulation piece of wood.
Process: This was a little different in that Thingiverse was the first port of call - however this was to gain the measurement specifications to make the base.  Both the base and the lid were designed in Tinkercad and milled and then 3D Printed.   They were then joined by the screws.    The design of the Raspberry Pi Logo was screen shot and then dropped directly into Tinkercad.

Door Signs/Classroom Passes

Note: Attempt at having a join created by printing

Challenge: This project was teacher initiated.   The teacher was looking for a way to use the 3D Printer to create a sign for placement above the door of the classroom - as the finished product was approximately 30cm this was also the perfect size for a classroom pass.  Previously I have worked in schools where students had to have one of these when leaving the classroom to go to other locations.
Background: As detailed above.  The teacher was looking at a dovetail approach to join together two separate prints (see below) we are very fortunate with the Ultimaker 2 that we have a large base to print off.  The length of the combined print was thirty centimetres.

Whare Paku translates to 'Bathroom'

Task: The idea was to link two separate 3D prints together to form a solid print.
Level of Difficulty: Using Tinkercad the task was straightforward and followed the format of the previous prints.  The details were then pulled out of the base sign.    Overall: Low (however it is important to read the note below about the joining of the print).

The wood version of the sign milled from wood

Issues: The join failed.   The teacher had attempted to create a 'dovetail' join for the two separate prints.  The two interlocked however the teacher had to force the two together by standing on them, in doing so this produced the crack that is visible.   The print had been completed on a draft setting which possibly contributed to the failure of the join.   The idea being if they interlocked and were strong enough any bonding (such as glue) would not be necessary.
Size: 30cm long by 5cm high and depth of 4cm.  
Timeframe: Each of the two sections was twenty hours on fast print setting.
Process: Tinkercad for design converted to Cura 2, then downloaded on a memory card and direct print.  Following the failure of the join the teacher concerned used the School milling machine to wood cut the same design into a sign.  He used his original Tinkercad 3D Print and then altered the lettering to produce the print.