Designed up this shore rack based on the Penrose pattern inspired by this video of Veritasium: https://www.youtube.com/watch?v=48sCx-wBs34 (and the need for better organizing my shoes)
The idea is that the design is scalable, so depending on the number of shoes and space available the bars can be shorter and more levels can be stacked up.
The final shape looks like a puzzle, but it is only based on two main shapes: Kites and Darts. Note that the assembly strategy does matter, there are infinite possible combinations but not all combinations will lead to a successful assembly.
Besides the regular kites and darts, there are 4 other modified pieces that support the horizontal rods.
The rods are chrome-coated oval wardrobe spars for hangers, this design has two types:
- 30x15mm, 1m long for the front bars
- 14x22mm, 1m long for the rear bars
However, 14x22mm bars seem to be hard to find, so I would recommend to go for x4 30x15 and change the dimensions of the support holes accordingly.
The design takes into account tolerances for printing with PLA, and parts should snap together, so no glue is needed to assemble the rack.
In principle no support is needed, although brim is recommended.