Friday, April 6, 2018

3D Printed Jewellery Stand (Advanced)

Design shown in profile prior to PLA final print removal
Challenge: For student to create an individualized, personalized jewellery stand.   Student has started 3D Printing this year in the classroom for the first time and has created a range of prints.  The challenge for the student, moving forward is to produce increasingly complex prints that are using mixed PLA (printing in sequence and then combining the printed material when complete).
Background: Student is attempting more complex designs with interlocking components and mixed coloured PLA (note - due to the printer that we are using the prints are being printed separately and then combined when complete).   This student has had classroom experience, seen signs from others and created increasingly complex designs herself including the ultimate personal desk organizer
Level of Difficulty: Medium.   This had the potential to be more complex than it was, the student choose to limit the features of the design to meet the brief.  We had discussed with her introducing a draw into the base of the design, she opted for it to remain a block.  The dolphin and wave design were sourced from online material freely available.     
Time frame: This was a significant print - eighteen hours.  There was a large amount of rafting that had to be printed as part of the design which was then removed.  This allowed the features of the Dolphin to remain showing the 'leaping' effect.   You can see the original design with the rafting shown in the photograph to the right.   Given the intention for the print, the dimensions of the print and details the obvious change in design would have been the block for the base of the design.   This was 20mm in height, given that the student opted out of including a drawer in the design this could have been reduced, conceivably halved.    All other default settings for the prints featured on this blog were similar - 20% infill, 8mm nozzle, Tinkercad and Ultimaker 2+.
Size: The base was 130mm long by 110mm deep.  It had a depth of 20mm.  The waves part of the design are 30mm high and a length of 100mm.   The dolphin was 80mm long.  There is a storage cavity built into the head of the dolphin which was 30mm across.
What we would do differently: The student was looking to use the waves and the fin of the dolphin to hang jewellery from.   This could have been expanded on to have cylinders on the edges or other additional options for storage.
Next step for students: The student is in the process of creating additional lettering to feature on the basis of the design to meet the mixed PLA brief.   The student needs to next tackle storage internally in the base. 

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