Stop wasting filament on inacurate tools. This 7.5 inch Speed Square is battle-tested in an engineering wind tunnel project. Profesional grade accuracy for your workshop! All made in CAD engine to deliver the most accurate result for your projects.

In 1925, Albert J. Swanson invented the Speed Square — part rafter square, part protractor, part marking guide. It became the carpenter’s pocket tool in the US. But here’s the catch: it was born in the Imperial system. Great if you’re framing in inches. Not so great if you’re working in metric.

So I designed my own:• All-imperial unit rafter square• Rise/run markings for common rafters, hip/valley cuts, and top notch• Printable as a solid jig or lightweight frame

WHAT INCLUDED:

• Traditional Hip/Valley system
• 7.5 inch long main ruler
• 4 inch long increment ruler
• Degree system up to 90 degree with 1 degree increment
• Pivot Point
• Scribble notch for main ruler increment at 1/16 inch
• 5 mm lip thickness with insertion notch for the main Square
• Separated Main Lip Print and Main ruler print
• Double-sided labels

NOTE:

• Print the main part as bi-color i.e. white-black-white sandwich or can be black-white-black or etc (p-n-p or n-p-n) with Klipper Engine (MANDATORY!)
• Print the Cantilever base as normal single color with either Marlin or Klipper (can be both)
• Infill as you wish but reccomended at 25% and 3 walls for durability
• Layer at 0.08 mm best for the finest result

Personal Note:

• Best nozzle use is 0.2 mm although my nozzle as 0.4 mm just work fine (Elegoo Neptune 4)
• All tested on my Elegoo Neptune 4 series. This rafter-square sent my wind tunnel project into my Thesis Defence!
• No BambuLab or AMS required. Your regular printer such as Ender 3 with Klipper still can print it!