CANON

cults3d

Cannon that fires cannonballs with a spring mechanism , the inner diameter of the spring should be more than 3mm ,the outer diameter should not exceed 6mm for the length 30 mm is a good compromise . for the model presented I used a ballpoint pen spring . the measurements of the model are : L = 102 mm ; W = 68 mm ; H = 62 mm No supports for this model only glue will be used to join the different parts