Experiment Pendulum single

1.   Base made from Aluminum casting A shape , can adjust level with stainless steel dia 12 mm. High 600 mm

2.   Stainless steel rod for attach tread made of stainless steel length 150 mm. Dia 12 mm. With 2 whole

3.   Cross head made of aluminum with screw lock

4.   Iron ball size approximate 20 mm and 25 mm each one

5.    Scale degree 0- 180