bow torque, cam lean....?

[mjhaverkamp]

you guys talk about bow torque, cam lean, what is it ? what is a torqueless grip ? don't mean to sound dumb but I just am not up on the technology of a bow, thanks

[DPerez905]

I have seen the cam lean your talking about on some bows but I don't know much about how to fix it. I see it when someone has a bow at full draw and you can stand behind them and see that the cam is not in line with the bow. I may be wrong but I think the torque is when some people grip the bow tightly and it turns or torques the bow creating a bad shot or sometimes even causing the string to come off the cams.

[Cajun Blake]

ditto what DP said about cam lean

cam lean can be remedied by rotating limbs (top to bottom , and bottom to top)

also you can adjust the shims or "spacers" between the cam and limbs

i'll try to find a few pics to give you a visual

IMO , bow torque is a result of poor grip mechanics/hand placement or too strong of a grip

[bowhuntntxn]

You can also fix cam lean by twisting the opposite side of the cable yoke. Bow torque is usually caused by variances in grip, or grabbing the bow as you release. A very common problem. Torqueless grips roll the hand to the same position by not having any square edges, or large mass to hold. They are good if you shoot a very open and relaxed grip, but are worthless if you grab the bow when you shoot.

[Mike Javi Cooper]

The lean we're talking about is the torque (twist) to the top limb/limbs caused by the cable guard rod pulling the cables out of the way so you can shoot fletchings... It is generally measured at full draw and adjusted to give you a string that tracks straight off the cam or idler..

Here are a couple of photos...

The first is a very bad case and the second is just slightly out...

[ZZ Pops]

I hope I'm not hijacking the thread, but this raises questions for me...

Javi, does the bow have to be at full draw to see cam lean? What I'm getting at, is if the cam appears to be slightly our of line at brace, is it possible for the cam to be in line at full draw. And, if it is possible, does this negatively affect the bow's performance?

[Mike Javi Cooper]

I hope I'm not hijacking the thread, but this raises questions for me...

Javi, does the bow have to be at full draw to see cam lean? What I'm getting at, is if the cam appears to be slightly our of line at brace, is it possible for the cam to be in line at full draw. And, if it is possible, does this negatively affect the bow's performance?

Yes it is not only possible that you see lean at rest, but if you don't it is unlikely that the string is tracking straight at full draw.. the reasoning behind the lean being corrected at full draw is that the arrow is being propelled from full draw and the string path would be the straightest as it goes forward. The arrow leaves the string at or before it reaches brace..
And this also allows any hand torque to be adjusted for.

[wassaw]

torquing, is that slight bit of pressure from the hand that (after the release) pushes the bow away from zero (where you where aiming)

[ZZ Pops]

Makes sense. Thanks, Javi.

[arrowslinger]

The lean we're talking about is the torque (twist) to the top limb/limbs caused by the cable guard rod pulling the cables out of the way so you can shoot fletchings... It is generally measured at full draw and adjusted to give you a string that tracks straight off the cam or idler..

Here are a couple of photos...

The first is a very bad case and the second is just slightly out...

i just noticed when shooting my DXT that it looks like that top picture but is leaning the other way to the left pretty bad.

[rocky]

i just noticed when shooting my DXT that it looks like that top picture but is leaning the other way to the left pretty bad.

These pictures are of idler lean, which can be fixed easily, but CAM lean is a whole nuther issue.
Sometimes cam lean, ( which is most prevalent to the shooter side of the bow due to load transfer on axle), can be fixed by switching limbs top to bottom, and then lean in top limb taken out by the split harness. But in most cases that I've seen, after you straighten the limb tips, you have a slight hump in the limb which will still give problems. This lean usually shows up early in a bows life and limbs should be replaced. The bow company usually sends the bow out right, and then the weak spot in construction finally shows up.
Most bow companies use the same limb manufacturer, so it will happen to all companies.
Cam lean will cause center shot to have to be inside of center to the point of cable contact.

[arrowslinger]

so when i take it in tomorrow i should ask for them to switch the limbs or new limbs??

[rocky]

If the Idler is leaning, just have them twist yoke to straighten idler at full draw.
If the cam is leaning, and bow is under warranty, if it was my bow, I'd have them replace limbs. If not under warranty, try the switch tactic and hope it fixes it.

[arrowslinger]

it is under warranty, how long will it take to get new limbs? So i just need to take it in and ask him if the idler is leaning and if he says its the cam i tell him i want to get new limbs?

[arrowslinger]

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