Results 1 to 17 of 73
Thread: Drop Weight Vs. Crank
12-09-2006, 10:32 PM #1Originally Posted by gavias
Besides securing systems there are also tensioning systems, the drop weight, the crank, and the electronic. Contrary to popular belief, constant pull tensioning does not mean quality stringing. What is more important is uniform tensioning and pulling of each string and precise tensioning on every pull. The electronic and the drop weight types have constant pull, the crank is not. However, only the electronic and crank deliver precise tensioning on every pull. Non-constant pull machines like the crank tend to have lower tension than constant pull machines, which vary from minimal if the string clamps are excellent to 10% if the string clamps are floating types or of poor quality.
Also, there are the side supports, necessary for high tension and minimal distortion stringing.
Finally, most stringing machines out there are tennis stringing machines, optimized for tennis racquets. As far as I know, only Babolet provides tennis and badminton interchangeable turntables. There are some badminton-only machines, which are slower but better.
12-09-2006, 10:59 PM #2
Crank deliver precise tensioning on every pull? I highly doubt it.
Babolat doesn't provide interchangeable turnables. The Babolat badminton kit include load spreaders and plastic pieces for the side supports.
Originally Posted by taneepak
12-10-2006, 01:49 AM #3
Crack machine DOES deliver pricision tension on every pull. Because it's fast and easy to do with each pull.
No like drop weight machine hardly deliver precision tension on every pull but it DOES deliver constant pull on every pull if you wait for 15 seconds or more on every pull.
12-10-2006, 02:11 AM #4Originally Posted by Alexccs
I would agree. Crank machines would deliver essentially a precision pull. The drop is not as reliable because of the nature of the machine.
12-10-2006, 02:48 AM #5
Not mine drop weight .
Originally Posted by Matt
12-10-2006, 03:05 AM #6
C (rack) DOES = CDOES ?
Originally Posted by Alexccs
12-10-2006, 03:46 AM #7
Eheheh Pete. You know what I'm referring to.
12-10-2006, 10:15 AM #8Originally Posted by Pete LSD
12-10-2006, 10:22 AM #9Originally Posted by Alexccs
I adjust my tension accordingly to account for tension loss.
So, assuming precision is to the 0.1lbs. The only way you can have a precision pull is:
1) To be able to clamp off exactly the same way, every time, so your tension loss will be the same
2) To be able to clamp off in exactly the same time, every time, so your tension loss will be the same
3) To be able to pull and release the next string in the same way and time so your tension loss will be the same
4) To be able to align the racket (in degrees) exactly the same every time so your tension loss will be the same
Assuming all this is done, then you can have a "precision" pull every time. This is extremely hard to do.
However, if you consider precision to the nearest 1.0lb., then it's possible.
Last edited by DinkAlot; 12-10-2006 at 10:25 AM.
12-10-2006, 12:43 PM #10
Crank are that in-accurate with that many moving parts, unless you constantly calibrate it .
Originally Posted by DinkAlot
12-10-2006, 02:08 PM #11
The starting knot going into the grommet shouldnt be a problem. Although this suggests the knot is too small, or too tight. If too small, use more loops. If too tight, start the knot loose and let the tensioning do the tightening, while holding the knot back, rather than tightening the knot by pulling on the cut-end of the string. A knot that is too tight will constrict and bisect the string that the knot is made on when a hard smash contacts the loop string. I have seen this happen enough times to regard it as one of the main reasons for string breakage.
Continuing on with the tension digression, I think too much significance has been attached to the precision. Stringing is an inherently imprecise process, and it really doen't matter. What matters is the average. Assuming strings are done by the same stringer, on average, imprecisely tensioned 25lb strings are generally more stiff than imprecisely tensioned 23lb strings, even if the actual tensions were 24.8 and 24 respectively. Also when you switch stringer, you will find that the new stringer's tension differ somewhat to your last stringer.
In my own case, people tell me my strings are tighter compared to their previous stringers, and they adapt by asking for 1 or 2lbs lower on subsequent occasions. It's difficult to say if my tensions are more or less precise than others. As people keep coming to me for more, the answer is irrelevent in practice and needn't actually be answered.
I am confident of my tensions to the nearest 2lbs on my drop weight machine's scale. The scale itself may or may not be accurate and was manually calibrated using a cheap mechanical fishing hanging/pulling scale. For some unknown reason, my calibrated scale didn't resemble the original factory scale that I subsequently decided to rip off the machine. So you see, the machine itself could be imprecise in the first place.
Last edited by CoolDoo6; 12-10-2006 at 02:14 PM.
12-10-2006, 02:23 PM #12Originally Posted by DinkAlot
said it in 2003 too http://www.badmintoncentral.com/foru...ad.php?t=12569
Last edited by cooler; 12-10-2006 at 02:26 PM.
12-10-2006, 06:29 PM #13
Maybe it should read precise tension on every pull instead of tensioning. Yes, the crank and the electronic, but not the drop-weight, machines deliver precise tension on every pull.
12-10-2006, 07:33 PM #14
Crank is precisely imprecise with a spring(s) and various gears and moving parts subject to wear and tear. Unless you calibrate it for every string job (I know Master Dan does it quite often), the resulting string job varies over time. Electronic machine has a computer and sensor to do instant calibration, within a specific sensitivity (like 0.22 lb).
Last edited by Pete LSD; 12-10-2006 at 07:40 PM.
12-10-2006, 07:38 PM #15
ALL THIS PROVE ONE THING I HAD SAID BEFORE (sorry, me too lazy to find that post): It's not how expensive of the machine your stringer has, it's how good your stringer can string.
12-10-2006, 07:56 PM #16Originally Posted by cooler
12-10-2006, 08:25 PM #17Originally Posted by DinkAlot
BTW, other panda names taken include:
and gao gao
hmmm, they all have badminton names
Last edited by cooler; 12-10-2006 at 08:35 PM.
By leavelet in forum Badminton Stringing Techniques & ToolsReplies: 7: 02-01-2010, 12:07 PM
By silentheart in forum Badminton Stringing Techniques & ToolsReplies: 33: 08-04-2009, 05:26 AM
By ormy4 in forum Badminton Stringing Techniques & ToolsReplies: 0: 03-10-2009, 08:35 PM
By BadFever in forum Badminton Stringing Techniques & ToolsReplies: 6: 11-22-2007, 07:12 PM
By ryeung in forum Badminton Stringing Techniques & ToolsReplies: 8: 10-30-2006, 11:48 AM