which one is more accurate

[pros_pro]

Yes,You messure your machine, you said it is same as pilot, a table crank machine. But your machine is only a dropweight with fly clamp.

What is the different between the table crank machine and yours? you don't know. You are not good in phy/math. So you don't know the difference. Only said "they are same, they are same",hehe

[pros_pro]

I know kwun is Administrator, if you ban me for these posts, it's ok. Then I know what the badmintoncentral is. I just know Gary Locke help someone to express himself opinion. I'm glad to talk about phy/math with know phy/math. Thanks for kwun's caculate about the error of the angle, it remind me the string length is different between dropweight and crank.

[zombie0517]

I said they look similiar since I do not own a Pro's pro machine. Here's the originlal post,

"我看清了。我是说我的底座和您的pilot很相似，但我的机子在改装前是重锤，听懂了？"
"I saw it. I am saying my machine's base is similar to your pilot one, but my machine before the modification was a drop weight, clear?"

Yeah, you asked me the difference between the BASES of a Pro's pro crank and a Pro's pro drop machine, not the tensioning mechanism. That was very fair of you

Sorry guys, I felt I was feeding a troll...

[pros_pro]

Can you explain the difference between your machine and the pilot in phy mechanics ? Can you draw a pic in phy/math?

Yeah I remember it is you who blamed me "not knowing science or engineering" bacause I measured the thickness of my stringing machine base using a plain ruler. Yeah, I also remember you said "you can't explain the princple in phy or math" to other forum members and it does sound very familiar to me

IMO you are the one who spreads the misleading information. You can believe in whatever nonsense you may have, but I do not belive in your opinion and I think it is fair to let our fellow friends hear opinions from many people, not just you, before they make up their mind.

It is you who started the dirty smearing tactic and now you say to me "shame of you"? how hilarious

For those of you who can read Chinese, here's a post on badmintoncn.com which might have explained why he has been banned. Let me be clear, you are banned because you insulted other forum members, not because of "I told the truth about AEF stole the manual from pro's pro." For sure you are good at telling truth.

If someone's intereted, I can translate the post when I'm free.

[pros_pro]

That mean you didn't know mechanics, you said your similiar is only the base. what are you talking about? Are you using the base to string a racket?

Just draw a pic to prove i was wrong. ok? You don't know the mechanics of these machine.

I said they look similiar since I do not own a Pro's pro machine. Here's the originlal post,

"我看清了。我是说我的底座和您的pilot很相似，但我的机子在改装前是重锤，听懂了？"
"I saw it. I am saying my machine's base is similar to your pilot one, but my machine before the modification was a drop weight, clear?"

Yeah, you asked me the difference between the BASES of a Pro's pro crank and a Pro's pro drop machine, not the tensioning mechanism. That was very fair of you

Sorry guys, I felt I was feeding a troll...

[pros_pro]

Hi boy, here is talking about phy/math, not chinese political topic. OK?

Can you do like these? Using science method to explain the machine and your opinion?

I said they look similiar since I do not own a Pro's pro machine. Here's the originlal post,

"我看清了。我是说我的底座和您的pilot很相似，但我的机子在改装前是重锤，听懂了？"
"I saw it. I am saying my machine's base is similar to your pilot one, but my machine before the modification was a drop weight, clear?"

Yeah, you asked me the difference between the BASES of a Pro's pro crank and a Pro's pro drop machine, not the tensioning mechanism. That was very fair of you

Sorry guys, I felt I was feeding a troll...

[pros_pro]

Some one dispute me about my pic about the dropweight, said it is not mine, and it is stoled from pro's pro. And tell me that I was illegal according to the Clauses 217 in Criminal Law of the China .

Then I show him this pic that AEF's website stole the pic from pro's pro manual. Ask him to help me to prosecute them. Then my id is banned. I think everyone will understand what that mean whether he is a real foreigner or not.

can you help me to translate this matter into more exact english word? And let all the world to know what happend?

[pros_pro]

Here many people using pro's pro machines, but at badmintoncn.com AEF's stuffs said what bad machine it is , and theirs are what good machine for higher price, is it? zombie0517, haha, it's funny.

[pros_pro]

If string with Pre-stretch and tension adjustment for head/bottom/center/left-right, crank is better choice. Easy to operation.
If only string with one or two tension adjustment and have many experience about dropweight machine, dropweight is better choice with lower price.

Look at this video, he always adjust the tension head angle at least twice, and when he operate the rackets side, the arm is lower than H persition. That mean it need more experience for a dropweight machine.

And another thing you should notice is the chanllenger I has a ratchet tension system , challengerII has no that such as the alpha in this video. From this video if the machine has no that ratchet tension system, the arm position maybe not stable.
http://www.youtube.com/watch?v=adMW3mARDV4

Also wrong concept "constant pull with dropweight" at the reply. Almost it is only a concept, no one can wait until the string be elongated. Almost all "DP is accurate than crank" supporter talk about this wrong concept, but most popular accurate stringing method is Pre-stretch and tension adjustment. The DP user didn't use this two methods?

Hey guys i want to know which one is more accurate in tension leves around 22-34lbs

the crank or the arm machine

which one is the better one to buy? i already strung with such a arm machine and i really like the fixed clamps!

http://www.arfaian.com/default.aspx?ArtNr=1165

http://www.arfaian.com/default.aspx?ArtNr=961

[gy79bc]

Assuming static analysis, we have equation as:

assuming 10 degrees of error margin (alpha and beta) cos(10) = 0.98481

f*r = M*g*R

Say, 26Lbs norminal tension would result 0.395 Lb difference, however, if we always set
level upward (using alpha), then the gradual string elongation will correct tension to approach
the set norminal tension, once the level reaches Horizontal, any string elongation will results
in tension loss, but maximum loss or gain is limited to 0.395LB.

I would say drop weight is damn good in accuracy. The way we are string the racket actually have more roles to play, such as avoid sharp angle pull. Case closed

[yan.v]

Assuming static analysis, we have equation as:

assuming 10 degrees of error margin (alpha and beta) cos(10) = 0.98481

f*r = M*g*R

Say, 26Lbs norminal tension would result 0.395 Lb difference, however, if we always set
level upward (using alpha), then the gradual string elongation will correct tension to approach
the set norminal tension, once the level reaches Horizontal, any string elongation will results
in tension loss, but maximum loss or gain is limited to 0.395LB.

I would say drop weight is damn good in accuracy. The way we are string the racket actually have more roles to play, such as avoid sharp angle pull. Case closed

Heheh, if the guy was still here, the case would never be closed :P He's still trying to argue that on other forums :P

[zombiez]

I'm not a stringer. But this thread is amusing. There is one thing that I can conclude. Due to the drop weight being not horizontal at different part of the racket (different string length resulting in different stretched length causing different angle of the dropweight), this will result in uneven tension across the racket (it is very slight). This will even out after usage. Basically just string a bit tighter than you like. If the string loses it's tension over time, how much tighter than ideal tension to user depends on string.