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Phi Ruler (Artistry Edition)

Phi Ruler 2.0

Phi Ruler

Phi Ruler 3k-32_edited_edited.jpg
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What is golden ratio?


φ The golden ratio is a common mathematical ratio equal to 1.618, helping to make pleasing and beautiful shape and create harmony and structure applied on design. It's very common to notice the golden ratio on natures, such as ferns, flowers, seashells, even hurricanes. It's also believed that the Golden Ratio has been in use for at least 4,000 years (or even earlier) in human art, design and architecture, from the Pyramids in Giza to the Parthenon in Athens; from Michelangelo’s The Creation of Adam on the ceiling of the Sistine Chapel to Da Vinci’s Mona Lisa. In nowadays, golden ratio has huge application on posters, printed adv., UI & UX design, website design and logo design etc. These simple techniques help designers to organize better art composition and inter-layout spaces on a proportional and calculated design, helping to create eye-catching and pleasing structure.


Phi Ruler - An ultimate design tool for anyone


Phi Ruler is a multi-functional ruler that is designed to make sketching handy in seconds.


Phi Ruler is a multi-functional ruler that is designed to make sketching handy in seconds. Designer Yat Ming has been working on design for more than 10 years. He understands the importance of golden ratio application on every aspect from printed materials to User Interface design. He wants to create an ultimate design tool that is very useful, handy and user-friendly for designers. phi ruler is an one tool you need for every aspects on design no limited to sketching on printed design, Typography design, product and logo design, architecture and interior design.


Our Design Concept - Golden ratio grid lines 


Marked on the phi ruler, the golden ratio grid lines are designed for harmony design creation. We can sketch any linear lines, shapes and forms. This implies on mathematics, product design, interior and architecture. 


We can sketch any linear lines, shapes and forms by using the golden ratio grid lines marked on the ruler.


LC4 Chaise Longue designed by Le Corbusier, 1928


The golden ratio sketching is able to imply on product design i.e. design chair and luxury fashion accessories.


Philip Johnson's Glass House, completed in 1949. The golden ration implies on each divisions of the glass house, including windows, front doors in overlapping rectangles shapes.

Features of Phi Ruler


The golden circles - The philosophy of spacing and form

Golden Circles can be applied to designs of all kinds. It is very easy for you to draw a perfect circle with a presentable proportioned shapes and patterns. This practice helps you to make decisions about spacing and enhance visualize the design to real.  


Phi ruler allows designer to sketch 12 sets of circles, further enhance different ratio of geometry and  polygon.


Phi ruler includes the feature of a typical ruler and angle ruler

2. Easy to use

Sketching is a good start for every design. The ruler is very handy and easy to sketch any curves and straight lines.  


Dynamic Geometry: Euclidean Egg

The GeoGebra shows a an interactive model, a step-by-step compass construction of an egg shapes, "Euclidean egg" (Basic Blackwell Limited, written by Robert Dixon) 

Golden triangle and Fibonacci spiral


A Fibonacci spiral starts with a rectangle partitioned into 2 squares. By bisecting one of the base angles, a new point is created that in turn, makes another golden triangle.The bisection process can be continued infinitely, creating an infinite number of golden triangles, forming an equiangular spiral. A philosopher René Descartes, also known as Father of equiangular spiral, once said "If a straight line is drawn from the pole to any point on the curve, it cuts the curve at precisely the same angle". 

By using the phi ruler, it is very easy to sketch advanced patterns such as "Flower Of Life", Platonic Polyhedra, and Metatron's Cube. 


The Flower Of Life created by 13 circles in a proportioned ratio. The pattern also contains the three dimensional metatron cube, which further enhance the building blocks of Platonic solids.


Beauty lies in the ‘PHI’ of the mathematician

3. Pocket size


The leather case is suitable for shirt and pant pocket, that will be very convenience to put and take it out.


4. Handcrafted Italian leather case


Each piece is handcrafted with 100% Italian made leather in high quality, very durable and stylish. We have black and brown color options with 2 card slots for you to choose to fit with the phi ruler and cash or credit card.


5. Laser etched  & Durable materials


phi ruler is designed with a durable and sustainable stainless steel and copper materials for a lifetime usage. The simple design allows you to make drawing and sketching in a comfortable way. We have spent 6 months considering every detail of the phi ruler. Everything from the colors to materials has been discussed and evaluated. These rulers are very portable and would be handy anytime. We hope that our phi ruler will become your lifetime personalized stationery.

Phi Ruler


Phi Ruler 2.0

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