Home made 'sts'

[pwiles1968]

Don't get me wrong I don not think in reality the amount would affect the arrow in any real way I am guessing Hoyt know what they are doing and would not introduce them if they cause detrimental knock travel, Just my engineering brain going BUT and What if.

I have found a slow mo see the windstalker slo mo videos, With Windstalker Demo 4, it is not slow enough to see for sure but gives an idea.

Can you buy the rubber E.D.S bits on their own? how much are they and where are you getting them from. Can you PM me if you do not want to post it, If they are cheap enough I may try a bit of an experiment.

[bruno]

I know what you mean about an Engineering brain on the go,I have the same problem,can't sleep well when I want to try something,have to make it!
The EDS stoppers can be bought through the STS website;
www.stsarchery.com
and they can also be found on quite a few American archery shop sites,also ebay I believe.I am waiting to see the new MK2 version,which is suppose to be a big improvement.STS are being cagey until their patents are in place.
The current type are about $7 each.
I would like to get hold of the Hoyt stealthshot rubbers too before I go any further.
I made a stopper for my partners Merlin max3000 today but as there was less clearance I had to trim the rubber to clear the cables as the bow is drawn so its not ideal.it gave me the chance to shot it though and it definitley took a lot of the shock out of the shot which is felt through the bow hand.My partner Penny said it felt better to her and hopefully it will stop the pain in her elbow she suffers with during a round.Also the bow was a lot quieter.
Did'nt bother to make one for the other Merlin as I will wait for the correct rubbers.Some photos attached.
http://i128.photobucket.com/albums/p...instopper2.jpg

http://i128.photobucket.com/albums/p...instopper1.jpg

[Marcus26]

This is something we have played around with at my club. I personally detest them, but that's due to the change in bow dynamics which I don't like.
Anyway, one of the guys built his own, which was a very nice piece of kit, and found that if he had it a quarter of an inch off the string he had the same dampning effect but less chance of interference and inconsistancy.
He also found that if he used a very very soft rubber it had better effect.

[geoffretired]

So, do you think the idea of a small shock absorber would be better; it would bring the string to rest but even more gently. The idea seems to be to get the arrow to leave the string at the same point each time. Left to right and front to back, is more controlled rather than leaving it to where the string happens to be at the time, floating about in mid air.
Reaching the shock absorber would cause a sudden slowing down of the string, sudden enough to get the arrow off, but not so sudden as to create a kick as the shock absorber would absorb that .

[bruno]

A small shock absorber may work fine,but it's having the time to do all the experimenting.(my days are taken up with teaching archery in schools)
I am using the available rubbers as the makers have put a lot of the work in for us.I am told that STS used the same Sims damper that I am using at the moment when they first started out.
The navcom rubber has very good shock suppression and I have found with the couple of models I have made the results have been very worthwhile.
Biggest problem is the large diameter of the rubber.

[geoffretired]

I already have the shock absorber from a R/C car. When the release aid is finished I will try some experiments. I might get started before if I hit a problem with the release.

[bruno]

If you want to see, a) how far a string travels past brace
b) slow-motion film of an STS in action,check this out.

http://forums.mathewsinc.com/viewtopic.php?t=29975

[Marcus26]

Don't get suckered into thinking these will improve your bow's consistancy, they won't. All they do it slow down string oselation (sp?) after the arrow is gone. They will not make your arrow leave the string more consistantly.
They are no different to Mathews String Suppresors and I personally found them the cause of major inconsistancy.

[bruno]

If it means my other half can shoot a round with no pain in her bow arm elbow (seems to be tennis elbow) I think its a good idea.
I have managed to break three club records since making the one fitted to my Trykon so at least it does not affect me indoors at least.
I am sure they are not for averyone,but I have tried to tune out the noise on my bow,but on a parallel limb bow this stopper is the only thing that works (for me).
If it affects my groups at longer distances,not a problem,I can remove it in about 30 seconds.

[Marcus26]

Yes. However it was the snake oil salesmen on archerytalk who then hyped it up to something from the gods themselves.

They are a good item, but not a fix to all things.

Originally Posted by stu369

So why did someone invent them? was it purely for hunting? so that the bow is quieter?