I am soon buying a new bow with dual cams. I have never owned one before, and I am curious about what exactly has to get tuned on these babies???
There will probably be different methods for different manufacturers. On Bowtechs, the timing marks on both cams need to be set ideintically with cable twist. Different year models require different settings.
Or so you don't have to worry about tuning dual cams, buy single cam. More reliable, generally smoother and less sophisticated.
No. There's a little more to it IMHO. Those timing marks aren't always going to be dead on when the cams are synched (at least for me). Dave Nowlin over on AT has a pretty good writeup and explanation on tuning binary cams here. Essentially, you want to check cam synch at full draw with either the aid of a second person watching, or with a draw board. On a binary, you want your draw stop modules to contact the cables at exactly the same time. Additionally, you want to get the draw stop to hit the limb about 1/16-1/8" before the modules hit the cables to allow the little o-ring in the stop to compress. If either cam is advancing ahead of one or the other, you need to twist/untwist the cable going to that cam to advance or retard the cam as necessary. If it's a hybrid cam, it's a little bit more involved. Check out Nowlin's thread, or Javi's on AT if you're considering a hybrid or cam 1/2.
The new Monster and Air Raid have loops that join the cables together....I think. Shouldn't that eliminate the synch issue?
The Binary was supposed to eliminate the "sync" issue too but it doesn't. Give me the good old yoke system any day over these new "better" cams.
Dave is a very knowledgeable guy. I followed his instructions to the "T" and had my tribby perfectly tuned.
Yeah, his explanation on why the timing marks on the cams can't be used to ASSUME the cams are in synch. I've learned about binary cams just from reading his stuff.
