Rotary Vane Engine Model

Accessories needed to assemble:- Ball Bearing Qty.-1 [ To connect the rotor to the housing] Elliptical Acrylic sheet ( 2a = 150mm, 2b = 112.5 mm) [To attach the acrylic sheet to the exposed side] M4 Nuts Qty.-8 M4 X 55 / 60mm Bolts Qty.-8 Imp** I have made cylindrical groves for springs but it didnt work out for me, the spring was creating too much friction between the walls of housing and the vane, also the design isnt perfect, the vane gets stuck (sometimes) in the rotor. i have connected the rotor to a motor which spins it at very high speed, the problem of the vane getting stuck doesnt occur here because of high torque of the motor.