limb alignment

[pHz]

curiosity

OK - so checking limb / string alignment is the first step in setting a bow up

what realworld effect does it actually have on your arrow flight if the limbs / string ARENT in alignment ?

slainte : rob

[josh 77]

It can cause the arrow to go left or right depending on which way the limbs are out of line. and it can cause the arrow to zig-zag through the air.

[JohnK]

It is possible to tune a twisted bow. However, shooting a poorly aligned bow over a period of time will cause your limbs to twist (the time taken depends on the quality of the limbs, how often you shoot, etc.)

[WhitehartFB]

As Johnk says it can cause long term damage to your limbs.

If the limb tips are not Straight and working together then you will struggle with accuracy and the overall efficiency of the bow. This is more important than having the string running down the exact centre of the handle I have seen bows set up with Beiter limb guages where the string is dead centre but the top limb tip is pointing left and the bottom right.

[grimsby archer]

Originally Posted by Whitehart

As Johnk says it can cause long term damage to your limbs.

If the limb tips are not Straight and working together then you will struggle with accuracy and the overall efficiency of the bow. This is more important than having the string running down the exact centre of the handle I have seen bows set up with Beiter limb guages where the string is dead centre but the top limb tip is pointing left and the bottom right.

Even if both limb tips are pointing well off to the left (or right) the string can appear to align down the centre of the riser (beiter limb guages or not)
This will cause the nocking point to track diagonally right to left in the power stroke or accentuate the figure 8 occilation of the string.
The hoyt matrix riser has a known cutout window of 23/64" past center, so placing a 23xx aluminium arrow flat against the bow window should result in the string just touching the outside of the arrow if the limb alignment is right.
This should be used in conjunction with the centre of bow string alignment of course to ensure that the string is truely centred

[gtek]

The hoyt matrix riser has a known cutout window of 23/64" past center, so placing a 23xx aluminium arrow flat against the bow window should result in the string just touching the outside of the arrow if the limb alignment is right.

Your information is incorrect.

The window on the Matrix is cut 0.455" past center. The use of a 23xx shaft on a correctly set up riser would leave a gap to the string approximately as wide as a one pound coin's thickness.

I hope there aren't a lot of people setting up bows off this sort of badly flawed information.

[WhitehartFB]

IMO this is the best way to check that your limbs are straight.

As I said the limb tips are important (straight) not where the string goes down the riser.

expalined by Jay Barrs here pages 5, 6 & 7 photo 2 & 3. Originally published in the Glade.

http://www.perrisarchery.co.uk/Perri...%2005%20Q4.pdf

[BorderBows]

The better the alignment the better the setup..., but instead of marking the limbs, you can also used the bolt holes in the riser too int he same way as mentioned in the pdf by Perris. (be warned of shadows, it can make a limb look off...)

[Schme1440]

Originally Posted by gtek

Your information is incorrect.

The window on the Matrix is cut 0.455" past center. The use of a 23xx shaft on a correctly set up riser would leave a gap to the string approximately as wide as a one pound coin's thickness.

I hope there aren't a lot of people setting up bows off this sort of badly flawed information.

I find the arrow on sight windo method to be completely ilogical. There is to much variation. If the arrow is not perfect for the bow then it will be wrong. beiter limb gauges are the best devices to use.

[Groundhog]

Originally Posted by Schme1440

I find the arrow on sight windo method to be completely ilogical. There is to much variation. If the arrow is not perfect for the bow then it will be wrong.

You've lost me on this one, I may be a little dense, can you explain what you mean.