modifying a Sangria to junkrig

  • 19 Dec 2025 07:31
    Reply # 13574468 on 13574278
    Anonymous wrote:

    Jacques,

    As it happens, I am designing a deck ring assembly for another JRA member, to suit a 7 inch tube which is very close in diameter to your 18cm mast. The components are to be 3D printed in suitable plastics for outdoor use. He is planning to join a 200mm tapered tube to this 7 inch tube as indicated in the drawings, but it would be just as good to make a hybrid mast using the 7 inch tube, or just to use an 18cm tapered tube as you are doing.  Would you be interested in joining the project? 

    Hello David, 

    I am interesting in joining these project ( File N° 1).

    I printed "30mm+aft+end+plug.stl " - file enclosed- What are the 2 drillings for?

    Good day

    Jacques 

    1 file
  • 18 Dec 2025 19:33
    Reply # 13574278 on 13487971

    Jacques,

    As it happens, I am designing a deck ring assembly for another JRA member, to suit a 7 inch tube which is very close in diameter to your 18cm mast. The components are to be 3D printed in suitable plastics for outdoor use. He is planning to join a 200mm tapered tube to this 7 inch tube as indicated in the drawings, but it would be just as good to make a hybrid mast using the 7 inch tube, or just to use an 18cm tapered tube as you are doing.  Would you be interested in joining the project? 

    2 files
    Last modified: 18 Dec 2025 19:38 | Anonymous member
  • 18 Dec 2025 18:36
    Reply # 13574243 on 13487971

    If ou do paint, and it gets any bubbles, theses need to be removed promptly, otherwise you get corrosion underneath.

    i understand that you should use a specific primer for aluminium 

  • 16 Dec 2025 21:00
    Reply # 13573579 on 13487971

    Bonsoir Jacques,

    if you don't paint the aluminium mast and battens, it will stain the sail. That's all. It is a decision of aestetics, not function. I did not paint my Ilvy's sail, and it works fine. Maybe with a new sail in the future I would paint it, but it is not a must.

    Cheers

    Paul


  • 16 Dec 2025 18:27
    Reply # 13573512 on 13487971

    Hello Jacques, good to see your progress !

    For the mast wedges, PJR says 0.1D, for your mast it's approximatively 2cm.

    I don't know for the aluminium, I think it's a lot simpler to let the pole bare. Painting it would be nicer, but a lot of work.

  • 16 Dec 2025 18:12
    Reply # 13573503 on 13487971

    Hello,


    December 15th: Here we go!

    Drilling the deck (20mm drill bit) ( photo enclosed ) 

    Questions : 

    • The mast is 18 cm in diameter, how many centimeters should I add for wedging?
    • Painting the Aluminum mast: Yes or No ?
    • If Yes :  What paint should I use after a primer ?  epoxy, oil-based, acrylic, or alkyd-based?  , Spray ?


    Nice evening

    Jacques 


    1 file
  • 02 Sep 2025 12:42
    Reply # 13537736 on 13487971

    Hello,


    Step N° 1 : Next week , I recovered the alu street lamp ( photo 1 ). Is it necessary to paint  ? if so with what paint ? 

    Step N°2 : Mast sole Ok ( photo 2 ) just test no glue, no "Omega" reinforcement 

    Step N° 3 : fabric fund  : Dralon/teflon 240gr/m2 - in 320cm ( Destocking, good price)

    Next step : Mast step 

    Have à good day

    Jacques


  • 10 Aug 2025 07:03
    Reply # 13530202 on 13529926
    Anonymous wrote:
    Anonymous wrote:
    Anonymous wrote:

    Jacques,

    did you just scale the measures to fit Arne's design for your Sangria? Looks okay on a first glimpse.

    Paul 

    Yes

    Good!

    That was exactly the idea with making those master sailplans....

    Arne,

    Hoping you will be better soon

    Jacques

  • 08 Aug 2025 22:12
    Reply # 13529926 on 13529813
    Anonymous member (Administrator)
    Anonymous wrote:
    Anonymous wrote:

    Jacques,

    did you just scale the measures to fit Arne's design for your Sangria? Looks okay on a first glimpse.

    Paul 

    Yes

    Good!

    That was exactly the idea with making those master sailplans....

    Last modified: 08 Aug 2025 22:13 | Anonymous member (Administrator)
  • 08 Aug 2025 17:26
    Reply # 13529813 on 13529630
    Anonymous wrote:

    Jacques,

    did you just scale the measures to fit Arne's design for your Sangria? Looks okay on a first glimpse.

    Paul 

    Yes