So, I replaced my strings on my 101st, checked cable and string lengths under tension, and they're close to specs (within 1/8"), but when installed on the bow, I'm .5" short on ATA and BH. Now I know specs are provided by manufacturer's as starting points, and you can deviate, but .5" is a lot. I haven't gone about synch the cams or checking DL or DW. Should I just synch the cams, and I'm assuming (just looking at the extreme difference in the timing dots) the BH and ATA will correct itself once I have to twist the cables, or is it better of to twist the cables/string to get the ATA and BH in spec first? I suppose this all is moot since I have no scale to check my DW, lol. I suppose my best bet would be to synch the cams, then twist/untwist the string to get my DL/DW into spec, but with the equipment I have now, I can only check/adjust cam synch. DL would have to go by feel since I have no way to measure at full draw, and I don't have a bow scale.
I have seen bows frsh from Bowtech that were "out of spec" but I agree that .5" seems like a lot. I would check the DW, adjust the cables to get the DW in line and then sync the cams. I have found that there is more twisting/untwisting involved when getting the DW right than there is when timing the cams and, usually, cam timing only involves (un)twisting one cable. I have set up some bows that fall within all the specs and others that don't. The ones that didn't weren't out by more than a .25" ATA though.
Ok, sounds good. I will be needing a scale for this, though, which puts me in a tough spot. Time to add another tool I suppose.
Matt - If you can be a bit patient, I'll have you up to the cabin for an afternoon this May and we can get it done together. I'll throw all the stuff we need in the truck and just bring it down.
BTW, what condition are your string/cables in? If they have some use on them, it might make sense to save the $$$ on a scale (we'll use mine) and instead buy a new set of strings, and get a good 50-100 shots on them before you get to my place so they are settled. Then we can tune everything, I'll get your DL set where I think it's best, we will do some video so you know what you look like and it's documented, and then turn you loose so you KNOW it's 100% where it needs to be and then you can stop worrying about the bow and just shoot it. Let me know, maybe the weekend of 5/16 or 5/23 would work.
Yeah, just replaced the strings/cables. Sounds good, Matt. I will have to see if I can break free from the house work or not (we may be moving in throughout the weekends in May, but who knows). Appreciate it.
You really should take RJ up on that offer after the mess that poor bow has been through since you bought it :d
Lol. I know, I know, I messed up a bit with it in the beginning, but replacing strings/cables isn't rocket science, I just don't know what my strings/cables are to spec off the bow, but my my BH and ATA is ~.5" off.
When you measured your string and cables did you measure from the inside of the outer edge of the loops or from the outside of the loops? Why did you just leave them within 1/8 inch? An 1/8" is actually a good bit of "slop" to be in your system.
Outside of the loop, but I suppose inside of the loop would make more sense since it's under tension being placed on the outside of the loop. The originals were ~1/8" longer than the one's being replaced, so I attributed that to stretching (these strings have hundreds upon hundreds of shots on them, and they were used when I bought the bow). I assumed I could attribute the 1/8" difference due to aging, but who knows. I'll work with it a bit this week again.
A string or cable that is 1/8" short of specs will certainly alter your ATA & BH. It's not the best thing to untwist the string/cable more than two full turns after it has been 'served', as you would only be moving twist from the unserved areas and so unbalancing the string. .05" is certainly NOT within tolerance and if I were you, I would return and have the string and cable replaced. If you check your draw weight now it would be much higher, gosh at .05" (short) you could get as much as 10-12 # increase in DW, hope your limbs can carry the extra weight, otherwise your problems will ony develop from here on. Change those strings or get someone who makes strings/cables to spec.
Mistakes happen...it's not difficult to read a tape incorrectly when measuring a string while it's in a jig. You can be mistaken when reading the tape. That's why I measure a string/cable several times before I close the loop ends and serve. I really dislike twisting a string or cable more than two full turns "AFTER" it has been fully served. Overtwisting strings/cables can also stress the fibers and can eventually cause the fibers to fail! Like I've mentioned .5" is much too much to shorten your ATA. I think Bowtech tolerance is 1/8"...you are 3/8" past tolerance...not good Bud!
Lol, I can definitely read a tape measure (I know you meant that sincerely, I'm just saying). So if I had to twist my string several times to get it in spec (it was long under tension...quite a bit long), should I be worried about fiber strength? I don't want to have to worry about this string snapping on my while I'm at half draw and punching myself in the face. Ben, I'm working on it. I just hooked everything back up, put the string under tension, and it was WAY too long. I twisted it back into spec. I have one cable twisted back into spec as well (it was also too long). Ran out of time tonight (I have way too much on my plate right now:D).
I wouldn't be worried about strength. I can't believe they were that long. Sounds good. About the plate being full, I know the feeling. I just got done painting the ceiling in the baby's room and before that I was working on the camper, boat, and yard.
