Thanks for visiting us!

Badminton Central is a free community for fans of badminton! If you find anything useful here please consider registering to see more content and get involved with our great community users, it takes less than 15 seconds! Everybody is welcome here.

Click here for a FREE account!

Custom-Made Stringing Machine Parts

Discussion in 'Badminton Stringing Techniques & Tools' started by Pete LSD, Dec 24, 2009.

  1. Pete LSD

    Pete LSD Regular Member

    Joined:
    Apr 25, 2002
    Messages:
    6,304
    Likes Received:
    11
    Occupation:
    Soul Searching
    Location:
    Canada
    Since the topic of custom-made shoulder supports, we may consider custom-made columns, clamp bases and turn tables :D.
     
  2. Distanc3

    Distanc3 Regular Member

    Joined:
    Apr 2, 2006
    Messages:
    617
    Likes Received:
    0
    Occupation:
    stringer for community centers
    Location:
    vancouver
    if only LF tension head was closer....
     
  3. Pete LSD

    Pete LSD Regular Member

    Joined:
    Apr 25, 2002
    Messages:
    6,304
    Likes Received:
    11
    Occupation:
    Soul Searching
    Location:
    Canada
    Yes, we can! Moving the LF header closer is possible :D.

     
  4. Distanc3

    Distanc3 Regular Member

    Joined:
    Apr 2, 2006
    Messages:
    617
    Likes Received:
    0
    Occupation:
    stringer for community centers
    Location:
    vancouver
    by moving the base?

    but if i were to ever want a custom machine, i would like a 6 point machine's 4 side support to be converted to hold down instead of the "K" or ">" support :D i'm almost certain it can be done but not sure if it would be good for the racket =T
     
  5. Pete LSD

    Pete LSD Regular Member

    Joined:
    Apr 25, 2002
    Messages:
    6,304
    Likes Received:
    11
    Occupation:
    Soul Searching
    Location:
    Canada
    Yes, it can be done! :D The Victor machine and its various brethens have this feature: head and throat hold down and four external supports. The only issue is that the shoulder supports are not adjustable to contact the frame at 90 degree! :rolleyes:

     
  6. kakinami

    kakinami Regular Member

    Joined:
    Jan 26, 2005
    Messages:
    491
    Likes Received:
    7
    Occupation:
    Professional Stringer SAP Open and Bank of the Wes
    Location:
    Newark, CA
    If you want custom parts I recomend a sheet metal shop. If you have ever been to Bay Badminton Club their stands were made from a sheet metal shop. Paragon Mechanical in Santa Clara, CA. They are Badminton fanatics!! They actually have their own court.
     
  7. Mark A

    Mark A Regular Member

    Joined:
    Sep 2, 2005
    Messages:
    6,162
    Likes Received:
    109
    Occupation:
    Warehouse dogsbody, Stringer, Panda reseller,
    Location:
    St Helens, UK
    Finally, a thread where my CAD musings are on topic:D.

    This is exactly why I'm trying to design a C bracket that will fit the Eagnas et al: it's crucial that the supports have as much contact with the frame as possible, and none of these fixed-arm machines (Victor, Babolat, etc) allow for rotation.

    The Yonex ES5, from memory, has rounded edges to its badminton "overlays", and so while it will come in at 90 degrees, the contact area is very limited.
     
  8. ryeung

    ryeung Regular Member

    Joined:
    Dec 16, 2002
    Messages:
    189
    Likes Received:
    0
    Location:
    ontario, canada
    If you have a machine that uses hold down at the top and throat, then you won't be able to use c-style side support?

     
  9. Mark A

    Mark A Regular Member

    Joined:
    Sep 2, 2005
    Messages:
    6,162
    Likes Received:
    109
    Occupation:
    Warehouse dogsbody, Stringer, Panda reseller,
    Location:
    St Helens, UK
    No, that would not be advisable with hold-down. Frames have different thicknesses, and C supports may not meet the frame at its mid-point if the top and bottom are held down; the frame has to "float" at 12 and 6 for C supports to work safely.

    It's my intention to convert my machine, which does NOT hold down but relies on rubber pads at 12 and 6, to a 10-point support; a C bracket would lift the racket off these pads, allowing the towers to be moved further apart and improving clearance.
     
  10. Mark A

    Mark A Regular Member

    Joined:
    Sep 2, 2005
    Messages:
    6,162
    Likes Received:
    109
    Occupation:
    Warehouse dogsbody, Stringer, Panda reseller,
    Location:
    St Helens, UK
    Here is a rendering of my supports in my Pro's Pro Pilot and a direct scale comparison of them next to the K brackets. As you can see, the racket will sit higher in the C supports and so will not rest on the black mats at 12 and 6, so the head/throat supports can be wound further out.
     

    Attached Files:

  11. kwun

    kwun Administrator

    Joined:
    Apr 24, 2002
    Messages:
    39,266
    Likes Received:
    530
    Occupation:
    BC Janitor
    Location:
    Santa Clara, CA, USA
    wow. very nice. how long did that take you to model??
     
  12. ctjcad

    ctjcad Regular Member

    Joined:
    Sep 27, 2004
    Messages:
    19,144
    Likes Received:
    4
    Location:
    u.s.a.
    My guess is..

    ..it should take him a few hours (esp. the 2 parts in the middle of the machine), but not very long. As one can probably figure out, the left and right mounting/unit parts are identical/symmetrical. So, all one has to design/model/render is one side of the mounting part/unit and mirror the other side(s). Same thing with the base. I don't know if that's what Mark A actually did, but that's the quickest way to do the entire model/rendering.
     
    #12 ctjcad, Dec 26, 2009
    Last edited: Dec 26, 2009
  13. Mark A

    Mark A Regular Member

    Joined:
    Sep 2, 2005
    Messages:
    6,162
    Likes Received:
    109
    Occupation:
    Warehouse dogsbody, Stringer, Panda reseller,
    Location:
    St Helens, UK
    ctjcad knows my tricks:D.

    The model was built using extensive "mirroring", so I only had to do the turntable and one support assembly, consisting of support tower, support arms and knobs (again, lots of re-use), one K bracket/C bracket, and then the swivel clamp base and badminton clamp. (I also did the base, rack arm and crank head, but they're not needed here.) I used accurate measurements taken from the machine itself, and it took me around 7-8 hours.

    I did this model a couple of months after getting my machine so that I could observe the effect of any modifications I wanted to make in the future. Came in handy here;)!
     
  14. Mark A

    Mark A Regular Member

    Joined:
    Sep 2, 2005
    Messages:
    6,162
    Likes Received:
    109
    Occupation:
    Warehouse dogsbody, Stringer, Panda reseller,
    Location:
    St Helens, UK
    Decided to model a racket and see how it fits the supports. A to-scale AT800, as shown, goes right in the middle, so larger and smaller beam rackets should be fine; I took the Z to be representatively smallest and Panda U1 to be largest, with only a couple of mm between them

    Just need a prototype now:D.

    Do the supports look too wide to anyone (i.e. covering the racket edge too much)? It's a very easy fix if so...
     

    Attached Files:

  15. Pete LSD

    Pete LSD Regular Member

    Joined:
    Apr 25, 2002
    Messages:
    6,304
    Likes Received:
    11
    Occupation:
    Soul Searching
    Location:
    Canada
    The supports seem fine. Have you measured a training racket's frame thickness in various places (head vs throat . . . etc)?

    As for the badminton specific turntable, one of the columns should be permanently attached to it (locked down and non movable). Also, the overall length should be a lot shorter than the one for tennis.

    Eh, what about the rest of the machine? . . . like the stand and tensioner bar (for WISE Head or Stringway tensioner).
     
  16. Mark A

    Mark A Regular Member

    Joined:
    Sep 2, 2005
    Messages:
    6,162
    Likes Received:
    109
    Occupation:
    Warehouse dogsbody, Stringer, Panda reseller,
    Location:
    St Helens, UK
    Pete... I took measurements at 4/8 on the Ultra 1 and at 2/10 on the Arc Z, and designed the C's accordingly. Thus, no rackets should fall into the gap and all should fit into the things in the first place:).

    With regard to the rest of the machine, I would be glad to envisage any modifications people can successfully convey to me, but that rendering is of my machine as-is - I still need the support stanchions to move in and out for tennis and squash!
     
  17. Mark A

    Mark A Regular Member

    Joined:
    Sep 2, 2005
    Messages:
    6,162
    Likes Received:
    109
    Occupation:
    Warehouse dogsbody, Stringer, Panda reseller,
    Location:
    St Helens, UK
    Well, a truly astonishing development: I had a quote back from my machining contact in USA and 100 supports can be made for...


    $8.25 EACH


    I'm not sure how to proceed now, as shipping to me from USA would be monstrous for the quoted quantity of 100. I'm thinking of selling the drawings/CAD model on to a willing party in US who can then order and distribute as required, or else taking a percentage cut from each sale - it is, after all, my intellectual property.

    Any ideas, people?:D
     
  18. kwun

    kwun Administrator

    Joined:
    Apr 24, 2002
    Messages:
    39,266
    Likes Received:
    530
    Occupation:
    BC Janitor
    Location:
    Santa Clara, CA, USA
    what material is used?
     
  19. Pete LSD

    Pete LSD Regular Member

    Joined:
    Apr 25, 2002
    Messages:
    6,304
    Likes Received:
    11
    Occupation:
    Soul Searching
    Location:
    Canada
    Yeah, get a quote on forged stainless steel :D.
     
  20. Mark A

    Mark A Regular Member

    Joined:
    Sep 2, 2005
    Messages:
    6,162
    Likes Received:
    109
    Occupation:
    Warehouse dogsbody, Stringer, Panda reseller,
    Location:
    St Helens, UK
    Quote was for forged aluminium body with stainless steel pins loctited in. Doesn't need to be spectacular, does it;). I'll have to investigate plastic padding, or else people can pad their own out ad lib.
     

Share This Page