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Thread: i am making a rudder

  1. #31
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    I must be making progress because I did about 45 minutes of sanding and then flipped the rudder over, today. The second side got it's first layer of fairing spooge... router shavings in epoxy for the areas where I need to build some volume quickly, and wood dough in epoxy for the little stuff. I expect there will be two more iterations of this.

    Also, the foil template for the emergency rudder is done.
    1968 Selmer Series 9 B-flat and A clarinets
    1962 Buesher "Aristocrat" tenor saxophone
    Piper One Design 24, Hull #35; "Alpha"

  2. #32
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    I thought I was done and ready for vacuum bagging, but I set up the rudder on the trailing edge and took a good, hard look at the leading edge and what's right behind it. It's good in the bottom third of the blade but one side is fatter than the other side in the top 2/3rds, with a significant divot, probably where I joined two pieces of wood. Aside from that divot, it's impossible to find that join, so that's good. Anyway, today I added some bulk to the "skinny side". I'll let it kick off tonight and hopefully sand it fair tomorrow, though it will probably need a treatment with epoxy/wood dough and another sanding.

    I'd hoped to have the vacuum-bagging done before I went back to work on Jan.8th, but I don't think it's gonna happen. With luck, I'll have it for the Cruise-In.
    1968 Selmer Series 9 B-flat and A clarinets
    1962 Buesher "Aristocrat" tenor saxophone
    Piper One Design 24, Hull #35; "Alpha"

  3. #33
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    OK, that's the last mix-spread-kick-and sand. We're in the "overnight kick" phase right now. After I spread some more wood dough and shavings for filler on the "skinny" side of the leading edge, I got to work on the Emergency rudder. I'm not going to be anywhere near as fussy about having a perfect shape for that rudder, and I think I'll use it for "practice for vacuum-bagging. I'd hate to screw up the primary rudder.

    $148...$83 of stuff and $65 of shipping... worth of triaxial fiberglass, peel ply and bleeder has arrived at my house , enough to do both rudders and I'll probably have a lot left over.

    OK, so this afternoon I spent about two and a half hours doing this...Name:  E-rudder005.JPG
Views: 767
Size:  1.18 MB

    Which resulted in this..

    Name:  E-rudder004.JPG
Views: 608
Size:  1.25 MB

    This rudder is going to be a bit slab-sided, but not terribly so. I'm not worried about it. Note that I just did the after part of the rudder. I did one pass at the leading edge and the bit dug deep. So I stopped and it finally hit me why the leading edge on my primary rudder is so wonky and requiring so much build-and-fair. It has to do with the radius of the curve of the template, where there's lot of curve, and the flat surface of the router.

    Instead, I'm going to cut a couple of 30 deg. cuts, lengthwise down the leading edge and then fair by hand.
    1968 Selmer Series 9 B-flat and A clarinets
    1962 Buesher "Aristocrat" tenor saxophone
    Piper One Design 24, Hull #35; "Alpha"

  4. #34
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    Here's a close up of the freshly routed redwood surface. This makes a bluidy lot of sawdust! To smooth it, I go over it with a surform plane and then belt sand with 80 grit.

    Name:  E-rudder006.JPG
Views: 694
Size:  1.11 MB
    1968 Selmer Series 9 B-flat and A clarinets
    1962 Buesher "Aristocrat" tenor saxophone
    Piper One Design 24, Hull #35; "Alpha"

  5. #35
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    I am working in my driveway, right?. I both drool and chuckle at the guys (and a few gals) on the Wooden Boat forum with their heated workshops, vacuum-evacuated planers and so on. One thing for sure, if I did this a lot, I would wear a respirator. That was a lot of dust, today.
    1968 Selmer Series 9 B-flat and A clarinets
    1962 Buesher "Aristocrat" tenor saxophone
    Piper One Design 24, Hull #35; "Alpha"

  6. #36
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    Quote Originally Posted by AlanH View Post
    I am working in my driveway, right?. I both drool and chuckle at the guys (and a few gals) on the Wooden Boat forum with their heated workshops, vacuum-evacuated planers and so on. One thing for sure, if I did this a lot, I would wear a respirator. That was a lot of dust, today.
    Alan, think of all those people in the midwest and northeast who are living through minus degree weather. I'll bet they envy you your nice warm driveway. Heck, today I was sailing off the city front in blue skies wearing a light jacket. It's all in the perspective. You look like you have a nice work surface there in your driveway.
    Last edited by Philpott; 01-06-2018 at 09:51 PM.

  7. #37
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    I spent my last day before going back to work doing -- 1: shaping the leading edge of the E-rudder with an archaic tool called a drawknife instead of putting it on the table saw. Also used a surform plane and a lot of sanding. It's not as sexy a shape as the primary rudder, but it's something like elliptical, sort of. It'll work and it's a good size. If the boat didn't come with a 1-D rudder the size of the Washington Monument, I'd say that the E-rudder i'm making was about the right size. this will be about 15% of the work as the primary rudder, for about 95% of the performance.

    2: filled and faired the "skinny side" of the primary rudder 2x, due to the judicious use, off and on, of a heat gun. I could probably do this another 2x but I'm heartily sick of the activity and the "skinny" side is appropriate chubby now, to match the opposite side. This isn't as good as a CNC-cut pro job, but it's a lot better than some rudders I've used. Time to vacuum-bag.

    NOTE TO ALL: If you ever have a chance to go see Greg Nelsons shop, do it. WOW. Just...so cool. Thanks for the loan of the vacuum pumps, Greg!

    I need to prep the other side of the E-rudder ASAP 'cause I'm going to bag that one before doing the primary rudder. I figure, mess up the rudder that didn't cost anything but time, right?

    I'm about $425 into this project.
    Last edited by AlanH; 01-08-2018 at 08:51 PM.
    1968 Selmer Series 9 B-flat and A clarinets
    1962 Buesher "Aristocrat" tenor saxophone
    Piper One Design 24, Hull #35; "Alpha"

  8. #38
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    Today is the last "routing day", which will also involve sanding and fairing with epoxy/redwood dough spooge. Tomorrow is the final sand, then then the E-rudder goes in the bag for the big experiment! If all goes well, Monday, the primary rudder will go in the bag. I may have enough triaxial cloth to do two layers of 19 ounce cloth, which will make it heavy but completely indestructible. Hmmm. Maybe too heavy. I gotta think on that.

    EEEeeeEEEEeeeeEEEEeeeeee....

    Joan is going to be bluidy glad she doesn't have to listen to that router again.
    Last edited by AlanH; 01-13-2018 at 11:54 AM.
    1968 Selmer Series 9 B-flat and A clarinets
    1962 Buesher "Aristocrat" tenor saxophone
    Piper One Design 24, Hull #35; "Alpha"

  9. #39
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    The nagging little sore throat that I've had for two days went nuclear this afternoon. Like, to Urgent Care, steroid injection,antibiotics injections and X rays nuclear. I couldn't swallow. It's strep throat, but this wan't your regular no-fun sore throat. Not so good. Four hours in Urgent Care, later I'm down to just a "bad sore throat", but I can at least eat popsicle.

    I got that side of the rudder all routed out and spooge'd, this afternoon before it got super-bad. I don't think I'll be vacuum bagging anything tomorrow.
    1968 Selmer Series 9 B-flat and A clarinets
    1962 Buesher "Aristocrat" tenor saxophone
    Piper One Design 24, Hull #35; "Alpha"

  10. #40
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    VACUUM BAG DAY!!

    what a shi*tshow!!. I'm so glad I did the E-rudder first. Now I've made all my mistakes and know what to do differently for the primary rudder.

    Mistakes...#1 I thought I cut the triaxial glass wide enough to cover the blade with an inch overlap for "flash". Nope. There might be some overlap at the trailing edge. Might not. It's that close. Lesson - cut 4 inches more than you think you need. #2.. well, mistake #1 took so much time to readjust that by the time we got the rudder in the bag, the epoxy was starting to gel. So I doubt that the breather pulled anything out. I certainly can't see any resin in the breather. The cloth and the peel ply are well soaked, though, so there will be a good bond.

    Also, cut all the cloth out FIRST, BEFORE coating the rudder. Oh, well. This is why I did this rudder, first.

    Here's what my garage looked like, cutting out breather while the rudder was on the table. Me=Dummy! I won't do that Name:  rudder-vacuum-bag-garagemess.JPG
Views: 625
Size:  1.85 MBagain!
    1968 Selmer Series 9 B-flat and A clarinets
    1962 Buesher "Aristocrat" tenor saxophone
    Piper One Design 24, Hull #35; "Alpha"

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