Speed Square Rafter Square for 3D Printing CAD Files — STL and 3MF ready
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 in 2025: • All-metric rafter square • Rise/run markings for common rafters, hip/valley cuts, and top notch • Printable as a solid jig or lightweight frame
Available version
Speed Square Rafter Design for Metric User — Prototype design V1.0
WHAT INCLUDED:
- Hip/Valley system include Ratio system as well as Metric system
- 20 centimeter long main ruler
- 10 centimeter long increment ruler
- Degree system up to 90 degree with 1 degree increment
- Both label in English and Indonesian
- Middle Diamond Notch at 10 cm mark
- Triangle Jig for sizing angled pipe
- Scribble notch for main ruler increment at 1 mm
- 5 mm lip thickness with insertion notch for the main Square
- Separated Main Lip Print and Main ruler print
- Double-sided labels
- Available pack for € 1.50 EUR in Gumroad Shop
FEATURE:
- Separated Main Lip Print and Main ruler print version
- Come with insertion notch for the main Square for easier print
- or you can get the free version with built-in lip-ruler cantilevered base in Thingiverse
Speed Square Rafter Metric Ruler + Traditional Hip/Valley — Design V2.0
WHAT INCLUDED:
- Traditional Hip/Valley system
- 20 centimeter long main ruler
- 10 centimeter long increment ruler
- Degree system up to 90 degree with 1 degree increment
- Pivot Point
- Scribble notch for main ruler increment at 2.5 mm
- 5 mm lip thickness with insertion notch for the main Square
- Separated Main Lip Print and Main ruler print
- Double-sided labels
- Available pack for € 2.00 EUR in Gumroad Shop
AVAILABLE:
- Separated Main Lip Print and Main ruler print version and come with insertion notch for the main Square for easier print in Gumroad
- or you can get the free version with built-in lip-ruler cantilevered base in Thingiverse
Speed Square Rafter Imperial Ruler + Traditional Hip/Valley — Design V2.0
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
- Available pack for € 2.00 EUR in Gumroad Shop
AVAILABLE:
- Separated Main Lip Print and Main ruler print version. Come with insertion notch for the main Square for easier print
- or you can get the free version with built-in lip-ruler cantilevered base in Thingiverse
Speed Square Rafter All Metric Ruler + Hip/Valley — Design V3.0
WHAT INCLUDED:
- Traditional Hip/Valley system
- 20 cm long main ruler
- 10 cm long increment ruler
- Degree system up to 90 degree with 1 degree increment
- METRIC ONLY Hip and Valley system
- Pivot Point
- Scribble notch for main ruler increment at 2.5 mm
- 5 mm lip thickness with insertion notch for the main Square
- Separated Main Lip Print and Main ruler print
- Double-sided labels
- Labels in Dual Language of Indonesian and English
AVAILABLE:
- Separated Main Lip Print and Main ruler print version
- come with insertion notch for the main Square for easier print
- Available pack for € 2.50 EUR in Gumroad Shop
Ultimate Pack
For € 6.00 EUR you can get all available pack from V1.0 to V3.0 in Gumroad
This Ultimate Pack consist of total of 4 Speed Square / Rafter Square in a single buy pack.