I built a paper tune rig with a cardboard box that I cut the front and back out of and wrapped the front tight. That’s where I started from and couldn’t get the rest just right. Looking back on it I think I may have been adjusting the rest the wrong direction but plan to try through paper again. Moving the rest to move the broadhead made more sense than how I would have to move it on a tear to correct it, I have looked up the tear chart so I read them better now. I had groups like this for about 10 sets. Sent from my iPhone using Tapatalk
Sorry man, should have dropped this at the beginning of the thread Sent from my Pixel 6 using Tapatalk
So, the bold is interesting and why there can be arguments on which way to move the rest to correct left or right tears / BH's left or right of FP's. Bear with me, I'll try to explain what I "think" I understand ha ha. Since you said you want to do your own work as much as you can. Tuning charts always show: If BH is hitting left of FP, which would be a nock right tear, move rest LEFT or cams to the right (opposite for a left tear). You adjust the FP to the BH. Confuses a lot of people new to tuning because BH hitting left of FP makes you logically think that the arrow is sitting like this \ and it doesn't "make sense" to move the rest more left. Vertical adjustments "make sense", nock low move the rest down, nock high move the rest up. BUT, normally we have set up the rest to string alignment nice and square (with the bow not drawn) and it is cam lean that we are trying to correct for with horizontal tears. New to tuning people always only think of the string to rest alignment and it never occurs to them that most of the time it is THE STRING NOT TRAVELING IN A STRAIGHT LINE. The cams sit nice and vertical with the bow at rest, but when it is drawn they lean one way or the other. Just to explain what can make the string not travel in a straight line. So, you move the rest to the left for a nock right tear to align the rest to the powerstroke of the string. BUT, sometimes the tune problem may actually be the string to rest alignment and there isn't much cam lean occurring. The string to rest alignment IS actually like this \ , so moving the rest to the right actually corrects it. Which seems to be what you just encountered. What to take from all that? Well, I usually follow the charts and 95% of the time it does correct my horizontal tear. But if you encounter a time that it doesn't, don't be afraid to move the rest back to where you started and then try adjusting it the other way. Looks to me like you're good. If you still see some vertical, then adjust the rest up/down as needed. BH low of FP would be move the rest up. And I would tie some serving right above your rest cord clamp to help keep it from sliding up at some point in the future and throwing your rest timing out on you.
No problem, I appreciate the help. I tried using a chart similar to that and I rushed it and read the rip backwards. If the wind calms down this evening I will be shooting through paper again to check the tune but the weather isn’t cooperating. Sent from my iPhone using Tapatalk
Thank you for the advice. But some questions so I can try to understand this better. If I have cam lean which could be the issue if moving my rest the direction I did fixed it, then can I fix the cam lean myself or would I have to get a press first? And I will tie around the clamp for the rest. When I get to the point of affording a press I want to tie it in myself but will probably be upgrading by that point anyway. Sent from my iPhone using Tapatalk
You actually moved the rest the opposite way from what tuning charts say. You said BH's hit left of FP, which a chart would say to adjust the rest LEFT. But you said you adjusted it to the right and that brought BH and FP together. So, I don't think you have enough cam lean to worry about, you just actually had a string to rest alignment issue. The bottom line is, you have BH and FP hitting together and that is the goal for a hunting setup. It sounds like your horizontal is good and you just wanted to confirm the vertical once you weren't tired from the shooting session. To answer your question, yes you normally need a press to adjust for cam lean. Normally it involves apply some twists or shimming cams.
Awesome thank you. I want to fine tune and perfect everything after the season but just trying to have a reliable set up out to 30 yards to go tag a doe now. Hopefully buy a press in spring. Sent from my iPhone using Tapatalk
