Wednesday, November 7, 2018

3D Printed Christmas Decorations - Third Run of Prints

 Left: Another basic 'star' design to start with including the addition of the lettering message of penalization.   The design measures 90mm across but the amount of filament has been minimized with a thickness of 5mm and just under a two hour print time.   The size of the hole to attach to the tree on reflection is probably too large, however it still fulfills the purpose, no additional changes will be made as the task has been successfully completed.

 Left: Using a square base design this student opted to include a Christmas Tree on the left of the design, the initials of the person that it was gifted too in the centre and three stars.   Two were raised up the third was sunk through the design creating the gap in the print.  A 5mm thickness was used to reduce printing time, and the lettering and stars were raised 5mm from the base.   This print came in and two and a half hours.
 Left: A snowman.   This print encountered some issues.   The hat design, where the hole for attaching the print to the tree failed, it was too large and this caused the hat itself to implode (which was subsequently removed as it was not solid).   The base of the hat rim remained as this could be used to attach it to the tree.   The name of the student who created it was sunk into the bottom of the design, this failed due to the lettering chosen being too small and the name 'Georgia' too long.  With a 5mm thickness and a three hour print time with a 80mm height and 50mm across.   Student very happy but if required to meet objectives then a considerable redesign is required.
 Left: Basic Tree design - two hours, with a name focused at the bottom, a basic star at the top with the hole for the attachment placed there.   This was the first print for an adult who was supported in her creation by having one of the other students create and teach her the design basics, which she mastered in three to five minutes.   No adjustments would be made moving forward.     5mm thick, with the lettering rising a further 5mm and a height of 100mm and a width of 50mm.  Very similar to the design shown right.
 Left: This student wanted to have an angel shaped design which they created themselves, with a star and their name featuring significantly.  The wings proved to be a little tricky to master resulting in the block shape, although the student themselves was very pleased and no additional work was required.   100mm high 60mm across and between 5mm and 20 thick depending on the location.   Three hours print time on default settings (which of course are a 8mm nozzle and 20% infill and regular PLA.)

Monday, November 5, 2018

Christmas Decorations: Second Run of Prints

The posts in this series followed a first set of prints, detailed below and inspired by the 'Christmas Tree' Print from two days ago.  Since then we have expanded the project to target producing thirty individual prints (for the students in our classroom) and a further thirty prints for a buddy, another student from elsewhere in the classroom.

 Left - Further development of the 'Snowman' idea.   This print shown is prior to the removal of excessive PLA filament.   The student attempted to personalise this by adding the names of her family members on the body of the snowman and placing a soccerball in the middle.   The print has excessive PLA printing on the back, due to its 3D Design (this is going to be detailed in a further, separate print).  This is a 100mm high, 60mm across snowman, which is 10mm deep.  It has a four hour print time which could be significantly reduced.

This print will be reconfigured to remove the cluster of names and lettering on the base of the design.

Left: An original Christmas Tree design, featuring the initials of the student that designed it with their initials featuring prominently in the design.  An attempt was made to have a star at the top of the tree, this was not successful as removal of the rafting also resulted in teh removal of the star.   The student was a nine year old making their first attempt at 3D Printing.   The tree was 80mm high and 60mm acoss at the base.   The design was only 4mm thick which was reflected in the print time of just under two hours.

This is a good basic design for junior students or students who are attempt to print for the first time.
 Left: A snowman inspired design.   The lettering on the base of the Snowman reflected the name of the family that the siblings are part of.  Due to the length of this name and the space available with the Chirstmas message there was considerable issue with the font that was printed.   To remedy this in the re-design the student is going to increase the size of the base and experiment with the lettering.   The design is currently 100mm high, 70mm across and 5mm thick.  Two hours to print.

This design will require reworking relative to the size of the design and the size of the lettering and would be described as medium difficulty.
Left: Designed by a learning support adult in the classroom, these two designs were essentially the same design twice.  In the design the names were prominent and featured a simple star as additional decoration.   The designs were created using Tinkercad and printed with the standart defaults (8mm nozzle/20% infill) on our Ultimaker 2+ Machines.    Two hours to print both decorations, these are not requiring an revision or redesign as task is completed.
Left: A more advanced version of this task.   This is a three dimensional present, with the ribbon used to hang the object.  Of note the width of this print, coming in at 20mm is considerably thicker than the others on this page, which typically are 5mm.   The dimensions of the print are 10mm by 80mm and the print time for this is six hours.   There is minimal 'rafting' with this print.   This is a particularly high level of completion of the task and does not require any improvements or additional detail

Saturday, November 3, 2018

Christmas Decorations - Personalised: First Run of Examples

Challenge/Background: This task involved in the students in my classroom producing an original Christmas themed decoration, intended for hanging on the Christmas Tree and then the students concerned locating another student, in another room, who could be from Five years old to Twelve years old and repeating the process.

 Left: One of the first design in this process - features a "hi" instead of a personalised name of the student who created the print, or the person that it was intended as a gift for.  It was 10mm thick with the 'snow-man' design.  This was accessed from the main Tinkercad Interface.   Design time - ten minutes, heigh, 120mm and betwen 50mm and 100mm across.   The only remaing taks was for the student to insert a hole into the hat of the snowman so it could easily be tied to a branch.   Three hour print time on default settings.
 Left: A basic star design.   There were a couple of minor issues with this.   Both the starts to either side of the 'Merry Chirstmas' were not actually on the base of the design, the student in error had them floating on the top (although it is not obvious looking from above).    The design was intended to be personalised so the student was instructed to repeat the process including a personalisation.    The hole that was inserted into the design was to allow easy hanging from the tree.   90mm high by 75mm across with a thickness of 5mm.   Three hour print time on default settings
 Left: A design that needed to be reworked - the original plan for this was to create a face by leaving out features of the design, although this was not clear from the shape that resulted.   There was a word built into the base of the design that was suppossed to read 'Horsey' but because of the size of this it didn't print out to a level that it could be clearly read. Two hour print time on default settings - print was 5mm thick.
 Left - Essentially the same design as shown above, althought this one featured the name of its creator sunk into the design itself, right through to the other side.   The only other aspect of the design was the hole to hang it.  Designed in under three minutes, 80mm across, 70mm high and 5mm thick.    Designed with Tinkercad and printed with default print settings.
Left: Designed by a eight year old with a present design with additional stars, this design was 5mm thick and measured 140mm by 130mm.   It took six hours to print using regular Ultimaker 2+ Default settings.   This was the students concerned first experience with 3D Printing and their first project.
 Left: Using a Christmas Tree as a base, with this student adding additional designs to the base (sunglasses, a moustache, a bow).   The student has produced a considerable number of high quality projects so this was designed in minimal time.   50mm across at the base and 120mm high.   This design took three hours to print with a width of 5mm.
Left: A straight forward design at first glance but for affect the student choose to drop the Christmas Tree's into the base of the design and add thier name.  An addition was then added to the top of the design so it could be hanged.   Design was 90mm across and took two and a half hours to print.   Designed in Tinkercad by a ten year old student.

Thursday, November 1, 2018

3D Printed Christmas Decorations: 2018 Season

Above: First Print in the series
Challenge: For students to design a suitable 'Christmas' themed decoration that could hang on a Christmas Tree.   Design needed to be personalized and for a challenge for the teacher the student was to design one themselves, and then choose another student in the school (at any level from five years old to twelve years old) and instruct them to use Tinkercad and produce an ornament as well.   Following this process it would allow to produce sixty Christmas ornament across the school.
Background: As above - we were looking at trying to have students in large numbers complete original prints that were personalized.    The students in my classroom tend to be able to produce particularly high level of 3D Prints as shown on this blog, however at times this can be daunting for other (teachers and students) so allowing our students to instruct or show others how to create items using the 3D Printer.   Although not all of Christmas is celebrated the same around the world, or of course at all, depending on the culture, however it would be easy to modify this for different holidays.   We tried this last year, but left the print running until too close to Christmas.    We also were trying to look at using Glow-In-the-Dark filament and this at the time was proving to be problematic (which over time we've become to understand that it most likely resulted from the temperature settings for the printer (which was too high, by default) and also not sealing the PLA in an airtight container after it was first opened.    Ultimately we wanted to ensure that we could complete a mass set of printing (in this case we are tar getting sixty unique and personalized decorations) on a single printer over a two to three week time frame.   The prints in this series are going to be based around my classroom of students (Y5/6 so nine and ten year olds) but also then developing with students between five and twelve.    We're going to show this examples in a Google Slide, with each example and keep adding to the slide as the prints develop. 
Level of Difficulty: Low Medium - Tinkercad has a large multitude of templates available including several holiday themed prints - generally these have been used by the students to start the design of the print (an example is the Christmas Tree shown above).  In this case the student simply added a hole to allow the ornament to be strung and created text that personalized a message for the ornament.
Time frame: Six hours for this print on the usual default settings - the lettering in particular was a little raised, which could have led to an adjustment in print time, although given its size, not too much.
Size: The print was particularly large for a Christmas themed ornament.    It measure 100mm across more or less at the base and had a height of 140mm.  Crucial to the print was the thickness of the print, which was deliberately left at 5mm.   The lettering visible raised it another 5mm.
What we would do differently/next steps for students: Grey happened to be the next cab off the rank so to speak in terms of PLA perhaps a different type could have been chosen for a different affect.   The design is due to be used to inspire others and will be a large-ish scale print run of around sixty different designs.     This will be the first.

Wednesday, October 31, 2018

3D Printed Tractor Update - Spray Paint Preparation

Original Date of Print - 
23rd of October 2018. 
In this continued update of a print in progress, the student concerned completed the first attempt at using commercial spray print.     This print was always intended as a multi PLA project, and for a tractor theme with stationary storage.   The student concerned has been able to master 3D Printing in a short space of time and I was looking for a project that would push her and challenge her with her designs.    In addition looking for another way to extend students I delibrately used a pink PLA for the design (mixed with a gray) .  Finally we have been further experimenting with the use of a new super glue to look at bonding all the elements of the print together - which is appearing to have a better impact.

Tuesday, October 30, 2018

3D Printed Resource Stand

Above: Slots for holding the iPad shown.
Challenge: To use a commercial product with an iPad that currently did not meet the specifics of the holder that existed.   Students need to replicate and manufacture a commercial piece, adapting it to ensure that it worked better to meet the needs of the students at our school.
Above: The final print being tested.
Background: This product had been purchased by our school and used for learning in the classroom.   The product in particular is excellent and a high use item, however we have number of different size iPads being used in the classroom, particular in the junior classrooms.   Some of our students have their iPads in 'Life Proof' cases to protect their use.   As a result sometimes these iPads do not fit into the slot that is present with the stand that currently exists, or a removal of the cover etc is required for the device to function.  We set a task to the students of recreating this piece to ensure that it would work with a variety of iPads
and to consider the non-removal of the case.    The students had to re-create an existing piece, and then modify it.   A small challenge was that the device holds the iPad at an angle.   Using a protractor the students identified the angle as being a thirty degree angle.   There is a compass option on Tinkercad alllowing the creation of specific angles of design - the students utilized this to create a 'perfect' thirty degree angle for the 'hold' of the device, which testing showed subsequently worked perfectly as a result.   As a result the print served it purpose, allowing the commercial program to work perfectly, with more flexibility than had been the case with the single available hodler.
Level of Difficulty: Medium - there was an exisiting template to be followed which was set by the stand that the students were trying to create, and the print itself was bound by this, it also made the print slightly more complex because it narrowed the success of the project.   
Timeframe: Fifteen hours - we needed to have depth to the base so the iPad holder wouldn't tip, as it is intended for use primarily with junior students, which in New Zealand is five year olds.     Given that and the specifics of the print the time couldn't really be reduced by removing elements of the print, or reducing the infill (which was the standard twenty percent).   
Size - As mentioned the slot for holding the technology (in this case the iPads) was a thirty degree angle.   The base measure 185mm across, was 110mm deep and 20mm thick.   This was stretching the Ulitmaker 2+ to the largest width across possible.    The base was 20mm tall and thick. 
What we would do differently/next steps for students: The task was completed successfully and had a practical application for the device, which worked in conjunction.  Alternating the size of the holder would allow for differing devices, including those in Life Proof cases to be used with the technology.

Saturday, October 27, 2018

3D Printed iPad Stand

Design shown from the front with the bar to stabilize the iPad
Challenge - For student who is nine years old to create an original iPad Stand to give as a gift to another student.    No teacher input (design) into this project, design, creation from scratch.
Background: This student has been responsible for several high quality designs and projects this year, including this 'deluxe' iPad stand featuring a Unicorn as part of the design.   This project was intended for an older recipient, as a result of which other than the penalization on the rear of the design (see below) was deliberately kept to a minimum.   The student as noted above was responsible for every aspect of managing the project from initial design and concept, the Tinkercad creation of the design, the checking and the proofing of the design (consulting wiht another student to ensure that it would be a successful print).   The sole responsibility of the teacher was to print the project and suggest that two different PLA plastic were used to highlight the 'EBS" font/title that was on the back inside the speech bubble.
Design showing the penalization
Level of Difficulty: Medium.   These designs have been printed in considerable variation and number in Room Six this year.   The students have continued to refine and improve their design minimizing the amount of rafting (and waste plastic) and using a mixture of combining PLA colours to produce lettering and features that stand out.    These are being produced to a high degree of skill able to work with a variety of iPads and including storage and details.   These are being produced with increasing skill, based on the work of the other students.  Its not a task for the faint hearted but when it works (like this) it produces something that has a lot of use that is highly durable and successfully completed the task.
Time frame: Twenty One hours for the base.   There would have been some flexibility had the student decided to include a draw in the base or reduce the width and the depth of some of the sides etc.
Design from above showing storage
Size: This design was 130mm across at the front.   The front bar to stabilize the iPad is 40mm in length, 20mm consisting of the base and a further 20mm for a bar.   The base of the stand has a length of 120mm.   The back of the stand has a storage box dropped into it with dimensions of 50mm by 120mm.   The storage at the back rises 100mm from the base of the design.   This would be more or less the minimum requirements for a design such as this to work. 
What we would do differently/next steps for students: We have experiment by having the students insert draws or storage into designs like this, the student opted not to do so in this case.   We also could have used three different base PLA colours as the speech bubble shown above could have been printed in a separate colour to