Cam systems - dyna cam, Dyna™ single cam, Parts of the dyna cam system – Martin Archery Bow User Manual
Page 9: Adjusting the dyna cam draw length

Cam Systems - Dyna Cam
•Dyna™ Single Cam
The Dyna Cam System is unique among all other single cam systems. The Dyna System
has modular draw length adjustment, and can be adjusted in half inch adjustments within
each draw length module.
•Parts Of The Dyna Cam System
Module
Screw
Speed
Ball
Bearing
Bottom
Cam
Module
Speed
Ball
Bearing
Idler
Wheel
•Adjusting The Dyna Cam Draw Length
Using draw length modules, the draw length can be
adjusted in 1" increments. The modules can also be used
to adjust the let-off. A high let-off module is marked as
"F". A 65% let off module is marked with a "F/". The slash
on the end of the size number indicates 65% let-off. To
change the draw length, replace the module on the cam
by removing the screws that hold it to the cam.
NOTE: do not draw your bow without the module
installed. It will damage your harness.
The Dyna module sizes range from F-1 to F-7. As the
module numbers get higher, the draw gets longer. The
draw length can also be adjusted in 1/2" increments
using the pegs on the back of the cam. The #2 peg is the
prescribed draw length for each module. The #1 peg is
1/2" longer and the #3 peg is 1/2" shorter.