Primi Building Blocks
Primi Building Blocks
3D
Published 2019-10-23T09:05:11+00:00
My design is closely related to meshing primitives, hence the name, used in simulation model preparation. Each block is designed with all female connectors into which the male pins can be inserted. This gives a greater degree of flexibility in their use without the need for multiple connector variations for each part.
The pins are a hexagonal shape with a vertex-to-vertex length of 5.1-5.2mm depending on the print file you choose. I found on my printer that the 5.15mm pins gave the best press fit into the 5mm diameter holes. To make printing the pins more time efficient I have uploaded a stack of 10 pins, alongside the single pin file, with a 0.2mm air gap between each pin. This stack of pins can be printed as one and then each pin can be snapped off as it is used. I have also designed and included a tool for the insertion and removal of the pins from the shapes to avoid the need for other tools. I recommend starting with printing a tet piece and a single pin in each diameter to see which fits best for your printer. I can also upload different variations of the pin sizes if anyone is having issues with the three provided.
As the set contains both traditional and non-traditional building block shapes it can be used for a variety of designs and I am excited to see what you guys can make with it.
Printed on an Ender 3 with a 0.4mm nozzle at 0.2mm layer height, 3 walls and 25% infill, although I imagine you'd get the same results at a lower infill and number of walls. No support required for any of the pieces, however I recommend a raft for the pins to ensure good bed adhesion. I would also recommend printing two or more stacks of the pins at once to ensure sufficient cooling time for the air-gap to make seperating the pins easier.
| Date published | 23/10/2019 |