Home made stringing machine

**Michal** · 12-02-2006, 11:49 AM

Few months ago I thought that construction of stringing machine isnt’t complicated and should’t be very difficult to make it in home. I watched of photos and some stringing videos, spoke with stringers and of course read threads on BadmintonCentral. Then I drawed some project, collected pieces, and get down to work.
Tension: 6-15KG (13-34LBS)drop weight- not level horizontal, but something like in StringWay/LaserFibre “constant pool”; tension is accurate on the every position of angle (it tested using fishing scale).
8 point mounting head system (2 inside on the centre, 4 on “traditional” position, 2 on the top of frame)
I restringed almost 40 badminton racquets (graphite, aluminium even steel) isometric and oval shape (f. e.:Cab 8200, Cab23, Iso 62, 63,75MF, MP 21, 23, 27, 55, 100; AT 300; Wilson Sting Power, Carlton Airblade 600) on the different tension (15-28LBS)using various guage of strings (0.68-0.80).
Best time to restring one racquet: 33min (non Yonex racquet- large grommets)
String lenght: 9m.
String pattern: 22/22, 4 knots (3 Parnell knots, 1 starting knot)
About my stringing job from picture:
racquet- Yonex Ti-5
string- Pro’S Pro Explosion 0.69
tension-Main: 10KG (22LBS), Cross 11KG (24LBS)
What is your opinion about this badminton “machine”? Would you risk to give me Your own racquet to restring? J
I’ll try to answer for eventually questions.
And thats the results:

**DinkAlot** · 12-02-2006, 01:24 PM

Very creative! Thanks for sharing.

**cooler** · 12-02-2006, 01:49 PM

nice piece of engineering. You must have metal welding skills

**Dummey** · 12-02-2006, 02:33 PM

looks like fun =)

**Pete LSD** · 12-02-2006, 02:36 PM

The tensioner concept is similar to Stringway's

.

**Neil Nicholls** · 12-02-2006, 02:43 PM

Originally Posted by Pete LSD

The tensioner concept is similar to Stringway's

.

I don't understand how it produces the same tension regardless of rod angle

Does the small rod on the red mounting move, or is it fixed?

**Pete LSD** · 12-02-2006, 02:50 PM

Neil, from the series of photos above the rod that the string goes over do move. I am just hypothesizing that the rod keeps the string, under tension, as parallel to the frame as possible.

Originally Posted by Neil Nicholls

I don't understand how it produces the same tension regardless of rod angle

Does the small rod on the red mounting move, or is it fixed?

**Pete LSD** · 12-02-2006, 02:57 PM

The frame supports are just about perfect for badminton. Very good job!

**Michal** · 12-02-2006, 03:35 PM

Originally Posted by Neil Nicholls

I don't understand how it produces the same tension regardless of rod angle

Does the small rod on the red mounting move, or is it fixed?

Dear Neil,
The small red part is fixed to the gripper, but it is move with lever (the angle between this "something" and lever is the same- about 90 degree)
http://www.stringway.com/en/info/dropweight.htm - here is something about Stringway/LaserFibre tension system

**coops241180** · 12-02-2006, 04:45 PM

wow... impressive work mate, so how long did it take you to make? and how much did the raw materials cost?

Coops

**Joseph** · 12-02-2006, 05:23 PM

Good job, the supports look very...umms...supportive...haha

**Michal** · 12-02-2006, 05:30 PM

Originally Posted by coops241180

wow... impressive work mate, so how long did it take you to make? and how much did the raw materials cost?

Coops

The fundamental elements was created for 2 afternoons (my father can drill, cut, weld steel parts)- but before I planned everything with my brother assistance. For the next couple of weeks I improved, corrected all and made paint job (it's look strange and funny- I know

)

About costs- I didn't buy anything, but I think, that raw materials cost shouldn't be higher than 20-30$- against all appearances the construction is simple.

BTW- I'm not an engineer- my occupation is very very different

**coops241180** · 12-02-2006, 05:38 PM

wow.. thats great. you should put together the design and post it on here.. i'm sure there are lots of people who would love to build there own. (me included)

**Pete LSD** · 12-02-2006, 06:10 PM

Michal,

The design is sound. you just need fixed clamps and the entire system will be perfect

.

**KooGuy** · 12-06-2006, 09:32 AM

Originally Posted by Pete LSD

Michal,

The design is sound. you just need fixed clamps and the entire system will be perfect

.

For floating clamps, It is not a problem.

Just my opinion - I think it is a little challenging or may not be efficient to use fix clamp on that mounting system. It may hinder the hand movement during clamp/move the fix clamp. Unless, someone has some idea how to trim down some of those excess metal on the mouting system.