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S2 6.7 Junk Rig Conversion

  • 03 Feb 2019 15:43
    Quote
    Reply # 7144142 on 6872873
    Anonymous member

    I made a little bag with the Seam Stick tape to try it out.  This made me change my mind again. This stuff smells terrible. The fumes from the tape irritated my throat and the bag continued to smell bad hours after it was done. I ended up throwing the bag out. The tape is sealed up in two zip lock bags. Maybe I will find a use for it when I can open up the windows in the summer.

    I moved on to making a small mocked up sail using a stapler for basting. The household stapler we had already does fine with 4 layers of Weathermax 65.

    I made two very small panels but used the hemming and panel seam allowance that I hope to use on the full size sail. The hem is 50mm [edit: not 500. doh!] and the seam allowance where the panels are joined is 25mm [edit: not 250. doh!].

    Honestly I am starting to doubt if I can do this. If I made something like the attached photos, full size, would this be a functional sail? I was not able to line up the hem of the foot in a way that worked without a big crease. Basting the panels together with staples went very smoothly but when I unfolded it the whole thing looks misaligned.

    I would appreciate comments from anyone who has made a sail with TCPJR methods.

    6 files
    Last modified: 04 Feb 2019 00:26 | Anonymous member
  • 26 Jan 2019 11:09
    Quote
    Reply # 7130314 on 7127570
    Anonymous member (Administrator)
    Scott wrote:


    Arne -- I have used staples in the past with good results. This time I am fairly sure I want to use tape.


    Sure, do it your preferred way. Then let us know which method was fastest or easiest.

    Good luck!

    Arne

    Last modified: 26 Jan 2019 11:10 | Anonymous member (Administrator)
  • 24 Jan 2019 20:56
    Quote
    Reply # 7127701 on 7127673
    Anonymous member
    Anonymous wrote:

    For both sailcloth and canvas, I use the UK equivalent of https://www.sailrite.com/Seamstick-3-8-for-Canvas-60-Yds

    Ordered! Thanks for the help.
  • 24 Jan 2019 20:39
    Quote
    Reply # 7127673 on 6872873
    Anonymous member

    For both sailcloth and canvas, I use the UK equivalent of https://www.sailrite.com/Seamstick-3-8-for-Canvas-60-Yds
  • 24 Jan 2019 19:46
    Quote
    Reply # 7127570 on 6872873
    Anonymous member

    Maybe I am just stalling -- I decided to get some basting tape before I cut up this nice looking yard of Weathermax 65.

    It looks like sailrite.com has at least three different kinds of basting tape.

    For Canvas

    For Canvas and Upholstery

    For Sailmaking and Vinyl

    I think I am using canvas to make a sail. I would not call this Weathermax smooth and flat like Dacron, but it is also not coarse like Sunbrella.

    Does anyone have some advice regarding which basting tape I should use?

    Arne -- I have used staples in the past with good results. This time I am fairly sure I want to use tape.

    Last modified: 24 Jan 2019 19:48 | Anonymous member
  • 11 Jan 2019 15:47
    Quote
    Reply # 6995398 on 6993814
    Deleted user
    Anonymous wrote:

    Here on my own topic I am still waiting for my yard of Weathermax 65 to arrive and trying to understand exactly how to test for seam pucker. I have thread that was used for modifying a bimini some years ago. It says 'T70' on the sticker which I guess means Tex-70. I think this acceptable for testing.

    Hi Scott-I suspect that WM65 will not pucker as much as WM80, if at all. The weave is very different. See pics. Light blue is WM LT = WM 65. Dark blue is WM 80. It is the prominant horizontal striations in WM 80, if you sew cross-grain, i.e. across the ridges, that you'll get pucker in WM80.
    2 files
    Last modified: 11 Jan 2019 15:57 | Deleted user
  • 10 Jan 2019 18:42
    Quote
    Reply # 6993814 on 6872873
    Anonymous member

    Thank you for the response, David.

    My apologies to Jami. It seems I do not understand the etiquette here on the JRA forums. I had considered posting in the 'Vane Gear for Weaverbird' topic. Maybe that would have been more appropriate?

    Here on my own topic I am still waiting for my yard of Weathermax 65 to arrive and trying to understand exactly how to test for seam pucker. I have thread that was used for modifying a bimini some years ago. It says 'T70' on the sticker which I guess means Tex-70. I think this acceptable for testing.

    Last modified: 10 Jan 2019 20:20 | Anonymous member
  • 10 Jan 2019 17:23
    Quote
    Reply # 6993638 on 6872873
    Anonymous member
    [moved here so as not to hijack Jami's topic]


    Scott wrote:
    David T wrote:

    Scott,

    [...] Although, to consider the matter in another way, if you were to take my pendulum gear, and instead of mounting the servo carrier on that 45˚ power axis, you were to fix the servo carrier rigidly to the boat - then you would have an aux rudder gear. Not a very powerful one, because it would be small, but it would work for a small boat. [..]

    This was my thought. If the oar in your gear is about half the size of the primary rudder on my boat then I hoped to re-use everything exactly as you made it. The only exception would be eliminating the 45 deg mount and the hinge at this point.

    I also just really like the quadrant and lines directly up to the vane. I did not understand it at first but now I think it is very clever. Pulling the quadrant to the center instead of running lines out to blocks and then back to a tiller seems much more elegant, to me.

    If you were to try this, and needed extra area in the water, I'd make the aux rudder longer rather than wider, so as to give the vane the least extra work to do.
  • 04 Jan 2019 16:06
    Quote
    Reply # 6983229 on 6979991
    Anonymous member
    Anonymous wrote:

    Scott

    [ ... ] However, I guess my Plan A would be the hardwood plugs, if I could find some of (nearly) the right size.

    Cheers, Arne

    Thank you for the advice, Arne. I will try for AL alloy tubes and hardwood plugs.
  • 04 Jan 2019 16:05
    Quote
    Reply # 6983228 on 6979563
    Anonymous member
    Anonymous wrote:Weathermax 65 looks much more convincing than Odyssey, but again, I suggest that you get a yard of it and do a sewing trial, to see whether it puckers like Weathermax 80, and in which direction.

    I had just convinced myself that spending a significant amount of money on fabric was the right thing to do this week.

    You talked me out of it. I will place a smaller order and do a sewing trial. But -- I need to get started on the real thing some time soon if I ever want to sail under a junk rig.

    Until I get the small test order I guess I will spend some time learning my Weft from my Warp. I am not sure exactly how to determine if a fabric puckers and in which direction.
       " ...there is nothing - absolutely nothing - half so much worth doing as simply messing about in junk-rigged boats" 
                                                               - the Chinese Water Rat

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