You can use a pen cap instead of a prince boomerang.
Pen caps and hip method are for the brake challenged stringers of this world.
You're an engineer, so I'd like to ask a question. If you're pulling in one direction with 60 pounds of tension at various angles to a string how much tension is on the string?
Why they are free
The string will always want to go where there is least resistance. When you string mains or do a 50/50 Cross, you never have to use a boomerang, because the string will naturally follow the path of least resistance, in this case friction.
Ideally we would like to pull directly straight out of each grommet path, but that rarely happens, because the paths of the string are not always directly inline with the tension head gripper path.
Sure but in case somebody needs to string a racket urgently. Then they can (of course not ideal) I have three boomerangs.
Actually the string when it is tensioned will take the shortest path (outside the frame) between the turntable pivot point and the tensioner (the gripper.) the only exception to that will the the bend through the grommets in the frame.
If the ideal condition is to pull straight out the grommet why don't stringing machine manufacturers make stringers so the tension moves around the racket instead of the racket turning in relation to the pulling force?
That's true, but in the case of O-ports it does not follow the intended line of the cross, but the path of least resistance. There is no grommet to keep it on it's intended path.
I can understand what you are saying as far as the string having 0 lbs tension when it is pulled perpendicular out of the grommet. That's basically 90 degrees or more. How often does that happen in stringing? When stringing O-port rackets, I will usually try to set the brake where the string is barely touching th side of the O-port. I try to reduce the angle as much as possible.
Prince recommends using the brake in conjuction with the boomerang whenever possible. For those without a TT brake, this was a big problem. At one point Prince was out of stock of boomerangs. Before they started producing them again, the stringers without, found other solutions.
I have never heard of using a brake in conjunction with boomerang. If brake is used that is all needed. I don't use a boomerang. I string my share of racquets, and the boomerang increases more friction.I used the boomerang just one time, and that was enough. Brake works just fine, no issues and stringing as normal.
If you have a good brake system, that is all that is needed.
Where can I quickly get the little tool for putting in the open grommets of the prince rackets like exo for stringing?
Please forget about getting the tools. I got all them myself from prince and they work extremely poorly causing substantial tension loss on the cross strings.
Use 50/50 method for stringing the crosses. I believe Irvin has a video explaining how to do this. It is relatively easy and trouble free.
It's stated in most recent Prince stringing instructions for O-port rackets. I believe that using the brake in conjunction with the boomerang puts less stress on both the boomerang and brake.
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Still if you have a good brake system, thats all thats needed.
I have strung a great deal with just using a brake with no issues at all.
It depends on your machine.
Not much of a regular poster here, but have enjoyed reading some of the threads. Fun to see the enthusiasm of beginners, as well as the over-analysis from the more experienced hands...
50/50 crosses requires a starting clamp for swivel clamps machines. It can be done on a glide bar machine like a Neos 1000 or with floating clamps. Though a NEOS 1000 does have a brake, so it's not necessary to do a 50/50.
Still if you have a good brake system, thats all thats needed. I have strung a great deal with just using a brake with no issues at all. It depends on your machine.
Right on the mark. Jim, I think everyone understands that if you have a good brake inquiring about alternate methods is moot. If you don't have a good brake (or your machine isn't equipped with one), then find out what the alternatives are and pick the one that suites you best. Mikeler likes the 50/50, some like boomerangs, I prefer the s-hook. A simple answer to a very simple procedure.
Glide bar machines also require a starting clamp, floating clamps do not.
...I respecfully disagree. Normally on a glide bar machine, the crosses are strung with one glide bar, but if you are doing a 50/50. You can used both glide bars, without using a starting clamp.* Though like COPEY said, it's moot since the NEOS and the like have a good brake system.
*-Any good stringer should have a starting clamp.
you both understand each other. Irvin is being anal about actual tension (a fine argument, if you must based on angles etc..) whereas L4L is going with consistent, repeatable stringing,
IN THE REAL WORLD.
edit: everyone knows, grommets, turns, angles, etc take away from actual tension being pulled.
next.
If I would have bought my machine a year or two later, I'd have the new Gamma brake design and would be using it now.
i don't find the new brake to anything special. but it does work, just as disc brake does.
The old brake worked like a disc brake the new one is a has a mechanical locking mechanism.