Sliding Right Angle Set Squares (45° + 30/60°)

These 3D printed right angle set squares are designed for the classic sliding method of drawing perfectly parallel lines.
Print them on a smooth PEI plate to get a glossy surface — this ensures they slide effortlessly over paper.

Modern transparent rulers often make it hard to align edges precisely with an existing line.
That’s why these solid, opaque triangles are a better choice for traditional hand drafting.
They have clean edges, no grooves, and no unnecessary engineering — just smooth, functional surfaces that do exactly what they should.

Perfect for anyone who prefers the feel of old-school drafting tools with modern 3D printing precision.