Spolar Adjustable Charge Bar

Printed with PLA

BOM

 McMaster

8969T925 316 Stainless Steel Corrosion-Resistant Compression Springs. CAD file just for model,  actual spring is 9.5 X 16 X .7 mm

6655K13 Thrust Ball Bearing

9414T6 Set Screw Shaft Collar

91847A429 18-8 Stainless Steel Thin Hex Nut

98813A102 Brass Threaded Rod

97171A250 Brass Heat-Set Inserts for Plastic

 H 22 6A Counting Dial  From Newark $8.94 ea.