Model of the Two Piece Design and Tension Rod of the Colleoni Equestrian Monument
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Description: 

In Karlskrona, Sweden, a model of the Colleoni monument was created to depict the believed construction of the horse. The model depicts the two-piece split of the horse at the rider's saddle as well as the tension been traveling from the top of the front harness through the back of the tail. This specific construction would allow for the horse's inner structure removal and casting in two pieces. This two-part casting saves bronze, money, decreases the weight of the horse, and improves stability (Kulenovic and von Platen).

Sources:
Kulenovic, R., & Von Platen, F. (n.d.). Questions Concerning the Equestrian Statue in Remembrance of the Condottiere Bartolemeo Colleoni in Venice Created in the Workshop of Andrea Del Verrocchio. Retrieved from http://www.museumldv.com/venice.htm

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Timeline of Events Associated with Model of the Two Piece Design and Tension Rod of the Colleoni Equestrian Monument

Da Vinci contributes to Colleoni monument in Verrocchio's workshop

1479 to 1482

Leonardo Da Vinci heavily contributed to Verrocchio's Colleoni equestrian statue monument from both an artistic and structural engineering standpoint. Artistically, his anatomical studies of horses and his notebook entries of the horse's frame by frame movements impacted the Colleoni monument design (Kulenovic and von Platen). In particular, his sketches of the horse's suspended leg and warrior's face are reflected in the monument design. His engineering principles relating to structural stability of the horse with only three ground points are seen through his splitting of the horse into two parts, his idea of removing the inner structure and casting each individual piece into bronze, and the running of a tension bean through the two parts of the horse from the tail to the front of the harness to hold it together (Kulenovic and von Platen). By saving bronze, he saved money and decreased the weight of the horse, which improved stability. The Colleoni monument served as one of the first representations of Da Vinci's ability to combine art and engineering principles.

Sources:

Kulenovic, R., & Von Platen, F. (n.d.). Questions Concerning the Equestrian Statue in Remembrance of the Condottiere Bartolemeo Colleoni in Venice Created in the Workshop of Andrea Del Verrocchio. Retrieved from www.museumldv.com/venice.htm

Verrocchio's clay model chosen for the Colleoni monument

1483

Verrocchio worked on his clay model of the Colleoni monument from 1479 to 1483 in competition with other great sculptors of the time. Since Da Vinci began working with Verrocchio in 1466, he played a great role in the creation of this clay model. Da Vinci studied the anatomy of horses, and thus created many detailed sketches for the Colleoni monument. In 1483, Verrocchio's clay model and plans for the statue were chosen as the winner of the competition for the Colleoni monument. Da Vinci's idea for the bronze saving casting process was said to have played a major role in the choosing of Verrocchio's clay model (Kulenovic and von Platten).

Sources:
Kulenovic, R., & Von Platen, F. (n.d.). Questions Concerning the Equestrian Statue in Remembrance of the Condottiere Bartolemeo Colleoni in Venice Created in the Workshop of Andrea Del Verrocchio. Retrieved from www.museumldv.com/venice.htm

Da Vinci contributes to Colleoni monument in Verrocchio's workshop

Verrocchio's clay model chosen for the Colleoni monument

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