One circle rotating by 45� plus one plunger to exchange pieces.

• Inventor: Karolis Kairys
• Mechanism: Intersecting plungers and circles
• Patents: Unknown
• Producer: Customly 3D printed
• Year: 2022
• Original Price: $0.00 USD
• Current Price: No Data

Rub el Hizb is a 2D puzzle combining a rotation and a shifting plunger. It consists of one full circle with 8 small triangles (one colour each) triangles and 8 bigger triangles (in pairs of two). On the other side there is a quarter of a circle, consisting of three pieces. The circle can rotate by 45 degrees.
The idea is very old for the inventor, but couldn’t make a working model with laser cut acrylic, due to small parts. 3d print and interlocking pieces sorted all problems.
It's based on Douglas A. Engel puzzle idea “Pentaplenty”.
The Rub-el-Hizb (Arabic: ربع الحزب, rubʿ al-ḥizb), also known as the Islamic Star, is an Islamic symbol. It is in the shape of an octagram, represented as two overlapping squares. It has been found on a number of emblems and flags. The main purpose of this dividing system is to facilitate the recitation of the Quran.
Material: PLA, vinyl, screws.
Size: 100 x 156 mm

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