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Type: Posts; User: MN Dave

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  1. Replies
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    Re: Hypoid saw question

    A misogynous blowhard to be sure. The Gleason company inventing the Hypoid gear. As I said, I got that from a link that Canoeyawl posted.

    Henry Ford made up the story that Kate was the inventor...
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    Re: MDO and HDO for boat building

    MDO core material varies regionally. In the northwest, it tends to be Douglas fir, which should eb good for a boat. I used some in the mid Atlantic and it had a yellow poplar core, which is not as...
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    Re: Working on trailer setup for SOF rowboat

    Sounds good. The wood framework is pretty substantial for such a light load, but does add some mass to the trailer. The curved wooden blocks under the boat could be made from minicell foam for a...
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    Re: Dionel vs. Xynole vs. Dynel

    Diolen is made in Germany, so your suggestion sounds better than mine (Dynel).

    The stiffness was given as elongation at specified force (EASF) which is used for elastomers. If my back of the...
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    Re: Dionel vs. Xynole vs. Dynel

    I am inclined to think that either you or your vendor misspelled Dynel and may have made an error on the cloth weight as well. Dynel is generally available in a 5 oz per square yard areal density...
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    Re: Cheap Strip Canoe...2x4s?

    The 1/2" wide strips were very difficult to use because they need to twist. The first three strips at the shear went on OK, but after that, they got very hard to handle. Fortunately, ripping 1/4"...
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    Re: skin on frame sailboat?

    Isn't the plan from the WB store based on Chapelle's plan?
    http://www.melonseed.com/images/lines.gif?crc=305306046
    Image frpm http://www.melonseed.com/melonseed-the-story.html
    More images here:...
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    Re: Interesting wire connector

    Navydog might be thinking shipboard or worse, aircraft vibration. Could be thousands of hours and higher levels than automotive. The wiring should be supported to reduce the loads.

    The solder...
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    Re: Interesting wire connector

    There is flux in the solder sleeve. It would probably be RMA.
    ...
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    Re: Interesting wire connector

    NASA has some experience with them, and with the cost of a launch, they don't approve unreliable parts. https://workmanship.nasa.gov/lib/insp/2%20books/links/sections/406%20solder%20sleeves.html ...
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    Re: Refinishing an oxidised aluminium mast

    That is because it would be hard to find an applicator with a long enough oven to ruin the heat treatment by overaging the aluminum. Most, but not all powder coat was baked at 400F, which will soften...
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    Re: Roomba for the boatshop??

    Too small. Love the spyware though. Maby a bigger vac? https://res.cloudinary.com/hwygxz85v/image/upload/c_fill,q_auto:best,w_1200/v1525878964/fpaanqki7y3ivwhsshes.png Better yet:...
  13. Thread: Tittb

    by MN Dave
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    619

    Re: Tittb

    Worm gear saws and google expertise.

    Lots of wind here, hot air anyway.
    You mean the Gleason company, the one that discussed efficiency in the link? OK, now I am into google expertise. Thanks to...
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    Re: Hypoid saw question

    Nice Jag. Yours?

    TITTB#13 I just replaced some old pictures and provided some information on the alternative gearing. You are of the opinion that the wear life of the hypoid will not be as good...
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    Re: The Defense Rests - Manafort Trial

    Dunno, I lost count.

    How can something so unappealing be appealed?
  16. Thread: Tittb

    by MN Dave
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    Re: Tittb

    No, You are looking for Sailing Anarchy http://sailinganarchy.com/tag/tits/
  17. Thread: Tittb

    by MN Dave
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    Re: Tittb

    David G.,

    So do you agree with Paul that I'm a Google expert with no experience? Thanks.

    The thread was about sheathing. The title will bring in readers who want to know about sheathing and...
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    Re: Hypoid saw question

    If we are going to eschew civility, take your horse pucky to the bilge. I created a wastebasket thread for experts just like you who like thread drift and insulting people. TITTB #3 I don't care if...
  19. Thread: Tittb

    by MN Dave
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    619

    Re: Tittb

    Gee, I never cut a gear in my life. Have you ever sectioned a failed gear and examined it with an SEM, microhardness transect, or any other form of analysis?
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    Re: Hypoid saw question

    The problem with 8 year old threads and pictures stored on sites that will change.
    Hypoid gear:
    21120Makita
    Worm gear:
    21121Dewalt

    According to...
  21. Re: Looking for Gougeon "Elder Care" plans, modeling, anything!

    The sections forward look a lot like a guideboat. The boat looks to me like it has very low initial stability, but will stiffen up as it heels. Not stiff enough for sail, but with outriggers, you...
  22. Re: What Glue? - Norwegian Faering - Scarf Joints

    http://forum.woodenboat.com/showthread.php?171995-My-Strandebarmer-Faering-Project/page4
    https://lh4.googleusercontent.com/-AS2lYpuiqZg/UtKoXfbUAaI/AAAAAAAAAcs/IPSD401V-yI/w875-h317-no/1+Overall.jpg
  23. Re: Looking for Gougeon "Elder Care" plans, modeling, anything!

    Google fu:
    The phone number is for the Grand Bend art center. They should know Skip since he taught a boat building class there; https://dokumen.tips/documents/artc-magazine-may-2013.html
    Skip...
  24. Re: Help with identifying timber from early 19th century schooner

    I trust that you have not found that it was soaked in creosote and have ruled out a half of a railroad tie. The typical size is 7x9x96" or roughly 2 ells x 1 span by 3 nails.
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    Re: Adding Counterbalancing Weights to Oars

    While rowing a guideboat the length of Saganaga Lake, into the wind with long blades on 8' spruce oars, I was painfully aware of how good Ben''s advice is here. The pivot point on the blade is pretty...
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    Re: Sourcing Plans ex Smithsonian

    Accepting Paypal would require a change in their process. The Smithsonian is run by (un)civil servants who are terrified of change.:D (To be fair, most of the civil servants I knew in DC were a...
  27. Thread: Peapods?????

    by MN Dave
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    Re: Peapods?????

    Oh Dave, Oh Bruce... Oh boy???:eek:
    The OP did say strip plank, which should mean thick edge nailed planks those of us who split that hair. WHile peapods tend to be heavy, the OP's boat list...
  28. Thread: Peapods?????

    by MN Dave
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    978

    Re: Peapods?????

    Grain is no problem with 9/8 planks. If the area you are cutting is quarter sawn, rip it 3/4 thick, turn 90 and rip the strips. 1.125" wide strips might be difficult to twist, so they might need to...
  29. Thread: Plywood repair

    by MN Dave
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    Re: Plywood repair

    There are actually three things that you can count on. Death, taxes and checks in fir plywood. I had the same problem. I just cleaned up the surface and covered the checks with glass and epoxy. It...
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    Re: Adding Counterbalancing Weights to Oars

    All you need is some of that heavier than lead epoxy that can float lead shot. If you thicken it with microballoons it paradoxically gets even heavier and won't run out.
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    Re: Brazing bronze with a mapp torch

    Most, if not all 'MAPP' gas sold in the US is now propene (Propylene) and doesn't burn as hot as the old MAPP gas. The label on the cylinder says MAP/Pro. Wikipedia and some bike building sites said...
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    Re: Adding Counterbalancing Weights to Oars

    Was that Sister Suzie? Andy had the only boat there that I would trade for a guideboat. He did like balanced oars.
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    Re: Brazing bronze with a mapp torch

    It should be OK. Nickel silver is very close to phosphor bronze in the galvanic series. The corrosion rate in seawater is on the low side for copper alloys. Corrosion rates in seawater are listed...
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    Re: Exterior ply for trailer sailer?

    Where is wizbang 13 when you need him? he could sum up the next paragraph in about 6 words.

    The point of a scarph joint of a butt block is to get a smooth curve without a leak. These boat designs...
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    Re: Metal Plate Centerboard

    You don't want to galvanize T1. https://galvanizeit.org/education-and-resources/resources/technical-faq-dr-galv/ar400-steel-and-t-1-steel

    A36 is more than adequate. It is just as stiff as any...
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    Re: Metal Plate Centerboard

    mmd recommended ASTM A36 which is readily available and inexpensive. A36 does not have any of the problems with heat treatable steels. All you really need is mild steel plate, ASTM A36, P&O or A588...
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    Re: Electrolysis In Wooden Boats

    I misplaced my copy of Nigel Warren's "Metal Corrosion in Boats". It is readable and practical. I think it might have information on anodes, but I would prefer to check before endorsing....
  38. Thread: Sealants

    by MN Dave
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    Re: Sealants

    Dap Seal 'N Peel is a quick and dirty sealant that can be removed and replaced when you have had time to properly evaluate the situation. It got my rusted out rain roof through a Boston winter. 35...
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    Re: Skin on Frame in the UK?

    Wetting and stretching balistic Nylon:

    Ballistic Nylon swells quickly when wet. We drape the Nylon over the framework and sew one end. We mark the other end and take it off the framework. when it...
  40. Re: Bernoulli-ism: Little to do with how sails work

    http://l-36.com/tech.php

    ?
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    Re: Stainless Steel Fasteners

    As I said, chloride concentration and temperature are the drivers. Oxygen concentration also plays a major role. Fresh water is a weak electrolyte with a low concentration of chloride. Things still...
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    Re: Keel protection for row boat

    Amazing Goop? Sounds bogus. After perusing the tds, it sounds like it might just work. Epoxy with ceramic beads, Kevlar and graphite. Graphite alone is slick, but isn't much good for abrasion, but...
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    Re: Metal Plate Centerboard

    Aluminum 5032-H32 ~$190 for a 2'x5'x1/4" plate (guessed size for example) Steel is a little cheaper, say $140 for the same size. A new steel plate might cost less than blasting and repairing the...
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    Re: Metal Plate Centerboard

    Oh good, a willing victim!
    The density of a mixture is not hard to calculate from the density and percent by volume. Uniform size spheres can have a maximum packing density of 65%, but as...
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    Re: Exterior ply for trailer sailer?

    Yes and no. For sheathing where you are worried about bouncing off a rock, grain orientation may not matter -- if you can pin down all the variables. It is hard to say how much more flexible a small...
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    Re: Ballast for 16 ft. sailboat

    Googling lead pig civil war got some figures. It seems to vary with the smelter. I found one pig recovered from a shipwreck at 110 lb and a book that mentioned 81 lb from Kennett & Blow and 70 lb...
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    Re: Exterior ply for trailer sailer?

    The face grain direction is important. You made the fir sample sideways. You should see a big difference between panels tested in different directions. You should make another fir sample with the...
  48. Re: Wood - Plywood - Epoxy bond, re-building my ketch Tonga

    Not too bad? More like excellent. You have hardly ever used the saw and you cut that freehand? You are good.
  49. Replies
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    Re: Metal Plate Centerboard

    Yes, and that being the case you're better off using thinner ply and thicker glass.[/QUOTE]
    To Gib's point, fiberglass is less than twice as strong and stiff as the outer layer of wood. It only...
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    Re: Electrolysis In Wooden Boats

    Degradation of Wood by Products of Metal Corrosion
    ...
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