Reuleaux Triangle

thingiverse

Couldn't find a reliable 3D model of Reuleaux triangle online, or available models were inaccurately designed. Decided to tackle the challenge myself. This is a great opportunity for modelers. I'll use this in a two-part silicone mold to create plaster copies, inspired by http://fab.cba.mit.edu/classes/863.11/people/paulina.mustafa/02.html &http://vloggest.com/watch/adam-savage-mini-science-fair-project-1070148843/. Both of these examples demonstrate incorrectly modeled triangles, which can be identified because the vertices should be identical; however, on those models there is a clear bottom/top. Print Settings: Printer: Hacked Davinci 1.0 Rafts: No Supports: No Resolution: Fine/Standard Infill: 10-20% Notes: I will print in ABS and vapor polish to make it smooth for casting later. How I Designed This Solidworks Modeled in Solidworks by intersecting a circular pattern of a revolve with another circular pattern, then combining the common area of these three solid bodies. Sketch an equilateral triangle with arcs of radius equal to the side length of the triangle, revolve two arcs and the triangle area around opposite sides to create a disc. Insert a reference axis from the intersection of two planes and circularly pattern the body around this axis three times. Intersect these bodies and remove the outer areas. Create a 3D sketch and add two more reference planes then reference an axis that goes to another tetrahedron vertex. Circularly pattern around this axis, same as before. I encountered an issue when trying to use intersect (anomaly in model). So I dropped down the list of three solid bodies in feature tree and chose to combine them using the common area. After this, I sectioned into two printable parts and uploaded whole, top, and bottom STL's for printing.