Commutator polishing

VRP Commutator Sanding kit- https://www.vrpslotracing.com/product...

Fast Lane Comm Sander tool- https://www.flrproducts.com/product-p...

Videos for truing and balancing of pancake arms...
Part 1: Intro and comm tweaking:    • Pancake Arm Truing & Balancing Pt1  
Part 2: Comm polishing:    • Pancake Arm Truing & Balancing Pt2  
Part 3: Gluing the windings:    • Pancake Arm Truing & Balancing Pt3  
Part 4: Truing the OD of lams:    • Pancake Arm Truing & Balancing Pt4  
Part 5a: Static balance intro:    • Pancake Arm Truing & Balancing Pt5a  
Part 5b: Static balance example (blurry):    • Pancake Arm Truing & Balancing Pt5b  
Part 5c: Another static balance example (not blurry):    • Pancake Arm Truing & Balancing Pt5c  
Part 6: Dynamic balance introduction:    • Pancake Arm Truing & Balancing Pt6  
Part 7a: Dynamic balance example part 1:    • Pancake Arm Truing & Balancing Pt7a  
Part 7b: Dynamic balance example part 2:    • Pancake Arm Truing & Balancing Pt7b  
Part 8: Dynamic balance epilogue:    • Pancake Arm Truing & Balancing Pt8