Quick Answer
Short answer: Tighten your cam screws until the cam is just starting to bind, usually when the draw weight increases by 1-3 pounds and the cam's rotation slows down slightly.
Cam Timing and Binding
When tuning a compound bow, it’s essential to find the optimal cam timing, which is the point at which the cam starts to bind. This typically occurs when the draw weight increases by 1-3 pounds and the cam’s rotation slows down slightly. A good rule of thumb is to tighten the cam screws in small increments, checking the draw weight and cam rotation after each adjustment.
Paper Tuning and Walk-Back Tuning
During paper tuning, you’ll typically start by loosening the cam screws until there’s no more binding. Then, use walk-back tuning to gradually tighten the cam screws while checking the draw weight and cam rotation. A good walk-back rate is to tighten the cam screws 1/4 to 1/2 turn at a time, checking the draw weight and cam rotation after each adjustment.
Arrow Rest Adjustment
Once you’ve found the optimal cam timing, adjust the arrow rest to ensure it’s parallel to the arrow and about 1/8 inch away from the arrow’s nock. This will help maintain a consistent arrow flight and reduce the risk of arrow deflection.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.