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    Kayak
    35 Posts · 32 Followers · 231 Photos · 459 Likes
    Began 9 months ago by
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    Latest Post 11 days ago by
    Vice Admiral
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    Most recent posts shown first   (Show Oldest First) (Print Booklet)
    📝 New Paddle
    11 days ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 43 Views · 18 Likes · 8 Comments
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    Having gained some experience with the test paddle, and having worked out the feathering angle needed between the two blades by trial and error, its time to make a fancy replacement.

    Some cedar and pine were cut into strips and glued to produce a striped blank. This was then cleaned up and cut using a bandsaw to produce four blanks taking care to ensure that the stripe pattern lined up. A shaped sanding block was used to sand a curve into the blades which were then glued to a redwood shaft and cut to shape. Lots more sanding was needed to thin the blades and blend the joint between the blades and the shaft. Once the sanding was finished the blades were strengthened with a layer of lightweight glasscloth and epoxy on both sides, followed by 3 coats of yacht varnish.

    The new paddle is slightly longer than the original, and the blades are also a little bigger.

    A short video, courtesy of 'philcaretaker':



    💬 Re: New Paddle
    10 days ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 26 Views · 3 Likes
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    Thanks everyone for the 'likes' and the comments. I expect I will continue to fiddle with it. Models never seem to be quite finished.....
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    💬 Re: New Paddle
    10 days ago by 🇺🇸 chugalone100 ( Chief Petty Officer 1st Class)
    ✧ 37 Views · 2 Likes
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    Great effort and precision went into creating your paddles, that’s what I call “Going the extra mile”.

    ‘And whosoever shall compel thee to go a mile, go with him twain’ (Matthew 5:41).
    💬 Re: New Paddle
    10 days ago by 🇬🇧 Scratchbuilder ( Commodore)
    ✧ 33 Views · 3 Likes
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    Graham.
    First class craftsmanship.
    Well done 👍
    Regards Bill
    💬 Re: New Paddle
    10 days ago by 🇨🇦 Ronald ( Vice Admiral)
    ✧ 34 Views · 4 Likes
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    Congratulations on figuring out how to make your dream come true. It has been an interesting marvel to see your progress since conception through to this current video and new paddle. No doubt you will continue to fiddle with it, fine tuning as you go.

    Who knows, maybe the next one will be a white water kayak Sam!
    💬 Re: New Paddle
    10 days ago by 🇬🇧 flaxbybuck ( Midshipman)
    ✧ 38 Views · 6 Likes
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    Graham - what a wonderful creation. From the electrical and mechanical design to the beautiful red head Katie - a work of art and fascinating to watch. No way I can compete with it !
    Canoeists often paddle in groups - how about synchronised kayakers ?😉
    💬 Re: New Paddle
    10 days ago by 🇭🇺 MouldBuilder ( Vice Admiral)
    ✧ 40 Views · 6 Likes
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    Perfect Graham. Wow, she can paddle at speed. Super job. 😃😃
    💬 Re: New Paddle
    10 days ago by 🇳🇿 jbkiwi ( Fleet Admiral)
    ✧ 41 Views · 5 Likes
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    All looks fantastic Graham, very realistic👍👍 New paddle looks great. Katie's getting the hang of it now😁

    JB
    💬 Re: New Paddle
    11 days ago by 🇺🇸 River Rat ( Lieutenant)
    ✧ 41 Views · 2 Likes
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    Beautiful work and even better results. Nice work, very fine. Love the video too! RR
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    📝 New Rudder
    1 month ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 54 Views · 11 Likes · 2 Comments
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    The original rudder was made to "scale size" (1/6th). It worked, but the turning circle wasn't great. I attached a piece of plastic to the rudder with double sided tape to try the effect of a bigger rudder, and as expected, the maneuverability of the kayak was much improved, even if the appearance wasn't 😆.

    A replacement rudder made from western red cedar looks a lot better. The shape ensures that the increase in size is not visible when the kayak is out on the water.

    💬 Re: New Rudder
    1 month ago by 🇩🇪 RNinMunich ( Fleet Admiral)
    ✧ 59 Views · 2 Likes
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    Exquisite😀
    But then I'd have been surprised and disappointed if it wasn't coming from Graham😉 He sets the bar so high ... then raises it again!👍
    I need to buy a longer ladder!🤔
    😎
    💬 Re: New Rudder
    1 month ago by 🇬🇧 Scratchbuilder ( Commodore)
    ✧ 59 Views · 1 Like
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    Lovely carpentry work in miniature.
    👍👍
    📝 Update
    2 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 75 Views · 16 Likes · 5 Comments
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    I can't believe it's been two months since my last update to this blog. I haven't been idle though and have continued to tweak the paddling mechanism and the control electronics.

    The latest tweak was to increase the size of the rudder as I had foolishly made it the correct 'scale' size, forgetting that water doesn't scale and a model rudder needs to be larger than scale. Anyway, I glued a bit of clear plastic on to the wooden rudder with double sided tape as a trial and it has greatly improved the turning circle. Now I just need to make a wooden replacement to replace the plastic and sticky tape version. I'm also part way through making a 'fancy' paddle to replace the test paddle, now that I have the blade feathering angle worked out.

    Here's a short video clip of the latest outing yesterday:


    💬 Re: Update
    2 months ago by 🇭🇺 MouldBuilder ( Vice Admiral)
    ✧ 62 Views · 3 Likes
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    What a difference Graham. If you can forget the concrete path it looks real. It is unbelievable that you have another trick up your sleeve to improve on perfect, the new paddle. Great video. Now looking forwards to Phil’s probably with the fully finished article.😃😃👍
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    💬 Re: Update
    2 months ago by 🇩🇪 RNinMunich ( Fleet Admiral)
    ✧ 68 Views · 2 Likes
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    Not only the low profile Graham, but probably the enclosed convex deck lets the wind zip right over without anything to 'grab hold of' and exert any force. Nicely done👍👍👍

    Remotely adjustable tweaks! Brilliant. I'm gonna nominate you for the MBW 'Nobble Prize'😉
    😎
    💬 Re: Update
    2 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 68 Views · 3 Likes
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    Hi Doug,

    She is quite quick on the water, and surprisingly unaffected by the wind. Bill and Ben in the dinghy just get blown around if there is any wind, but Katie is fine. Probably down to the low profile hull not catching the wind.

    The paddle blade penetration can be adjusted using a spare channel on the Tx so I can set it for best result. Once adjusted, I can then store the setting permanently with a command from the Tx. Several other parameters can be adjusted in a similar way, for example the port/stbd balance of the paddle and the rudder compensation to offset the alternating paddle thrust.
    💬 Re: Update
    2 months ago by 🇺🇸 pressonreguardless ( Commodore)
    ✧ 79 Views · 2 Likes
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    Truly Amazing Graham!!
    Maybe your Barbie and JB's Barbies can get together and compare notes?
    Trev
    💬 Re: Update
    2 months ago by 🇩🇪 RNinMunich ( Fleet Admiral)
    ✧ 71 Views · 5 Likes
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    Wow! Speedy Katie Kayak😮👍
    I see you've got more water penetration now as well.
    That must give more thrust👍
    Well tweaked Graham.
    Cheers, Doug 😎
    📝 Modifications - 1
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 104 Views · 12 Likes · 5 Comments
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    I wanted to keep the paddle shaft in one piece for strength, but while undergoing 'sea trials' it has become clear that a means of adjusting the feather angle between the two paddle blades is essential. Accordingly, a brass coupling was made on the lathe. It comprises two pieces which screw together with a knurled locking nut. The paddle shaft was cut into two halves and epoxied into each end of the coupling. The two halves can now be adjusted to set the blade feather and locked in position.

    The other problem during the first outing was Katie letting go of the paddle. Whilst this gave an impressive demonstration of one, or even no, handed paddling, it wasn't very realistic 😂🤣. Loops of elastic cord were added to keep her hands on the paddle.

    The paddling action is produced with a combination of mechanics and software control. A few changes were made to the software to improve the ability to steer. There is still more to be done to improve this. If you watch carefully at 0:35 seconds in the video, you can see the rudder compensating for the paddle stroke to help keep Katie moving in a straight line.

    Sorry the video is a bit jerky in parts with my camera mounted on the transmitter. I expect Phil may have something better to show, once he has had time to edit it.




    💬 Re: Modifications - 1
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 98 Views · 6 Likes
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    Hi Peter,

    A longer paddle might be necessary but I think a spacer might weaken the shaft too much. As it’s only a trial paddle, I’ll just make a longer one if I decide to go that way. Meanwhile I’m working on software changes to tilt the paddle more on each side when paddling in a straight line. The blades go into the water deeply enough when turning.

    Graham93
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    💬 Re: Modifications - 1
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 98 Views · 2 Likes
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    Hi Neil,

    Now that would be a challenge! One to add to the list of possible future projects perhaps🤔
    💬 Re: Modifications - 1
    4 months ago by 🇭🇺 MouldBuilder ( Vice Admiral)
    ✧ 96 Views · 4 Likes
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    That was quick Graham. The result of the improvements is clear to see. Would a slightly longer paddle make any difference. Could you try another brass spacer in the middle. It looks to me that as Katie’s arms do not lift at each stroke like we would, to dig the blade into the water, perhaps a slightly longer paddle might compensate.😃
    💬 Re: Modifications - 1
    4 months ago by 🇬🇧 neilw ( Midshipman)
    ✧ 97 Views · 3 Likes
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    Excellent, will Katie be taking up Stand up paddle boarding for her next challenge?
    💬 Re: Modifications - 1
    4 months ago by 🇺🇸 ToraDog ( Lieutenant Commander)
    ✧ 99 Views · 2 Likes
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    Brilliant! Now... about all that red hair. With a following wind Katie won't be able to see a thing...😁
    📝 Maiden voyage
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 125 Views · 18 Likes · 8 Comments
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    Before the maiden (!) voyage, a quick head 'transplant' !! I'd like to introduce 'Katie the Kayaker' 😂🤣

    It was with some trepidation that Katie was carefully launched onto the Buxton lake. An ideal day last weekend with very little wind. I knew she would float, but would she move, and be controllable? Well the answer is yes - sort of 🤔

    Thanks to Philcaretaker for the video clip.

    She managed to paddle out, turn and paddle back, which was a great start. At least she didn't need rescuing. Shame she wouldn't keep hold of the paddle!

    The paddle blades are not feathered at the right angle. The starboard blade is at the wrong angle and is hitting the water causing the kayak to rock excessively from side to side.

    Once back on dry land, the kayak was checked inside for water. There was just a drop but nothing to worry about, which was also a relief.

    So, overall it was reasonably successful, but several teething problems to be resolved before the next outing.👍



    💬 Re: Maiden voyage
    4 months ago by 🇭🇺 MouldBuilder ( Vice Admiral)
    ✧ 113 Views · 3 Likes
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    Stunning Graham. And the Kayak is extremely good too. 😬😬
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    💬 Re: Maiden voyage
    4 months ago by 🇦🇺 stevedownunder ( Captain)
    ✧ 117 Views · 3 Likes
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    Hi Graham,
    Great resalt, some tweaking required but you expected to need to make some adjustments.
    Looking forward to the next installment.

    Cheers,
    Stephen.
    💬 Re: Maiden voyage
    4 months ago by 🇺🇸 Black Shoe ( Midshipman)
    ✧ 119 Views · 4 Likes
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    Katie gives "maiden" voyage a whole new perspective.😊

    Well done!
    💬 Re: Maiden voyage
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 125 Views · 1 Like
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    Hi Trev,

    I think she needs to get a grip...🤣😂
    💬 Re: Maiden voyage
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 125 Views · 2 Likes
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    Thanks Colin,

    I think once she has learnt how to paddle properly the boys will have trouble catching up with her 😂🤣
    💬 Re: Maiden voyage
    4 months ago by 🇬🇧 MotoPilot ( Chief Petty Officer 2nd Class)
    ✧ 115 Views · 3 Likes
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    Fabulous. An imaginative model excellently executed. 😁👍
    💬 Re: Maiden voyage
    4 months ago by 🇺🇸 pressonreguardless ( Commodore)
    ✧ 118 Views · 3 Likes
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    Wow, Katie is so cool she can paddle with one hand.
    Then thru telekinesis, she can paddle without Hands 😮😮
    Love that red hair 😍
    Trev
    💬 Re: Maiden voyage
    4 months ago by 🇬🇧 Colin H ( Fleet Admiral)
    ✧ 123 Views · 5 Likes
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    Certainly looks like she will be a hit with the two boys, it could put them off stroke.
    Cheers Colin.
    📝 Installing the mechanism
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 129 Views · 17 Likes · 8 Comments
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    With everything finished, it's just a matter of installing it all into the hull.😉

    A temporary paddle was made for initial trials on the water. There are many variables to be settled for the paddle in terms of paddle length, blade size and the feathering angle between the blades. Once these are established, then a 'fancy' paddle will be made.

    Pictures 3 & 4 are from an earlier post and show everything in situ, before the deck was added to the hull.

    With the deck in place, it is difficult to see very much. It is also difficult to install all the bits, but with a little patience, it all fits.

    Manufacture of a spray deck from rip stop nylon was subcontracted to my wife, who has much more patience than I do.😇 An elastic cord run inside a seam around the edge grips over the cockpit rim.

    With everything in place, a short video to show the action:


    💬 Re: Installing the mechanism
    2 months ago by 🇬🇧 flaxbybuck ( Midshipman)
    ✧ 62 Views · 1 Like
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    Simply amazing !😉
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    💬 Re: Installing the mechanism
    4 months ago by 🇦🇺 stevedownunder ( Captain)
    ✧ 120 Views · 1 Like
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    Hi Graham,
    I cannot add to what others have said, however this is a wonderfully realistic build that has come to the testing phase.

    Cheers,
    Stephen.
    💬 Re: Installing the mechanism
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 125 Views · 2 Likes
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    Thanks to everyone for the comments and likes. It is finally coming together after what feels like a long journey. Not much more to do - I hope!
    💬 Re: Installing the mechanism
    4 months ago by 🇬🇧 GaryLC ( Lieutenant Commander)
    ✧ 127 Views · 4 Likes
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    Hi Graham, an absolutely brilliant concept from day one, to see this all come together into one very realistic-looking working Kayak is quite incredible. A masterclass of engineering and electronic skills and an awful lot of patience to put it all together and give it the realism this project deserves. It really is quite something to behold. I think the words, "And Now for Something Completely Different", describes your latest project very nicely. Well done you, that is going to be a difficult act to follow, but I am sure you will think of something??????????????? Regards, Gary. (Can't wait to see the Kayak on the water.)
    💬 Re: Installing the mechanism
    4 months ago by 🇺🇸 ToraDog ( Lieutenant Commander)
    ✧ 122 Views · 2 Likes
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    Wicked nice!
    "The speed of the paddler suggests he will be quite fast on the water."...no doubt the crewman's age is a factor here. Young pup....
    💬 Re: Installing the mechanism
    4 months ago by 🇺🇸 River Rat ( Lieutenant)
    ✧ 128 Views · 4 Likes
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    Hi Graham, your mechanism works so smooth. Very fluid movements and quite real in appearance. You have done a wonderful job on this project. I also look forward to your trials. As they say...You are the man! Dave RR
    💬 Re: Installing the mechanism
    4 months ago by 🇺🇸 pressonreguardless ( Commodore)
    ✧ 122 Views · 3 Likes
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    Truly an amazing Creation, Graham!!
    Trev
    💬 Re: Installing the mechanism
    4 months ago by 🇬🇧 dave976 ( Commander)
    ✧ 127 Views · 5 Likes
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    Looking good Graham. The speed of the paddler suggests he will be quite fast on the water. Can't wait to see the video.
    📝 Fitting the Rudder
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 133 Views · 15 Likes · 6 Comments
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    The rudder mounting pivot was attached to the stern of the kayak using brass pins and epoxy. The rudder itself was then fitted using a length of M2 threaded rod as a pivot. As with a full sized kayak, a length of bungee cord holds the blade vertical but allows the rudder blade to tilt backwards if it comes into contact with something underwater.

    The rudder is linked to the servo using two cords which run from the servo, under the deck through the previously installed aluminium tubes and then exit through the deck adjacent to the rudder. The small springs provide some tension in the cords to remove any slack and backlash.

    An additional line runs from just behind the cockpit, through small guides glued to the deck, and attaches to the top of the rudder blade. On a full sized craft, this allows the kayaker to raise the rudder blade to avoid obstructions.

    The short video shows the rudder in operation:


    💬 Re: Fitting the Rudder
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 129 Views · 4 Likes
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    Thanks Peter,

    “Kevin the kayaker”. Now there’s a thought.

    Only a few days left to finish it off. At least it didn’t take 4 years 😉

    Graham93
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    💬 Re: Fitting the Rudder
    4 months ago by 🇭🇺 MouldBuilder ( Vice Admiral)
    ✧ 126 Views · 4 Likes
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    Super job Graham. It cannot be long before Kevin joins Bill and Ben on the lake. Looking forward to that day.
    Peter.
    💬 Re: Fitting the Rudder
    4 months ago by 🇦🇺 stevedownunder ( Captain)
    ✧ 126 Views · 3 Likes
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    Brilliant, Graham beautiful work.

    Cheers,
    Stephen.
    💬 Re: Fitting the Rudder
    4 months ago by 🇬🇧 mturpin013 ( Vice Admiral)
    ✧ 129 Views · 4 Likes
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    Beautiful finishing touch to a truly amazing intuitive and imaginative build
    What's next?
    💬 Re: Fitting the Rudder
    4 months ago by 🇬🇧 cormorant ( Lieutenant Commander)
    ✧ 124 Views · 6 Likes
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    Superb!
    I used to build Airfix kits in the '50s (two shillings each) and the advertising was "just like the real thing!"
    What more can I say.

    Steve
    💬 Re: Fitting the Rudder
    4 months ago by 🇳🇿 jbkiwi ( Fleet Admiral)
    ✧ 127 Views · 6 Likes
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    Excellent job Graham, and it works perfectly, (like the up-haul on the blade)

    JB
    📝 Finishing the hatch
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 136 Views · 14 Likes · 9 Comments
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    The hatch fittings that were made a few weeks ago screw into place either side of the hatch opening. Black 'knicker elastic' is threaded through the fittings to hold the hatch in place.

    A neoprene gasket was made and glued to the underside of the hatch lid, together with a wire loop. A cord from this loop is attached inside the hull to ensure that the lid is never lost. Making a replacement to match the existing planking would be very difficult.

    I was fortunate to find some miniature plastic buckle clips to fasten the elastic over the completed hatch.

    💬 Re: Finishing the hatch
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 133 Views · 2 Likes
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    Won't be long now Michael 👍
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    💬 Re: Finishing the hatch
    4 months ago by 🇬🇧 mturpin013 ( Vice Admiral)
    ✧ 132 Views · 3 Likes
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    Lets go to the pond😀
    💬 Re: Finishing the hatch
    4 months ago by 🇬🇧 GaryLC ( Lieutenant Commander)
    ✧ 134 Views · 3 Likes
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    Sorry about that, how about rear view mirror or luggage rack, it was the shape of the cockpit opening that convinced me it was at the front. So we'll go rucksack holding down straps for his sandwiches.
    💬 Re: Finishing the hatch
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 136 Views · 5 Likes
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    Thanks Colin,

    That thought had crossed my mind, I think it’s a really nice idea. No promises though.

    Graham93
    💬 Re: Finishing the hatch
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 136 Views · 4 Likes
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    Thanks Gary,

    Nice suggestion. Trouble is he would need eyes in the back of his head as the hatch is behind the cockpit🤔

    Graham93
    💬 Re: Finishing the hatch
    4 months ago by 🇬🇧 Colin H ( Fleet Admiral)
    ✧ 135 Views · 4 Likes
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    Good afternoon Graham, having watched your progress from day 1 I am in awe of your talent for overcoming the problems that this build has given you.
    As for a name, I would like to suggest MARTIN the magnificent in memory of another fine modeller that is sadly missed by many of us.
    Cheers Colin.
    💬 Re: Finishing the hatch
    4 months ago by 🇬🇧 GaryLC ( Lieutenant Commander)
    ✧ 134 Views · 4 Likes
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    Hi Graham, I have followed your very interesting build from day 1 with curiosity and apprehension, and love the "and now for something completely different approach," and all of the somewhat complex problems that you have solved in the process of this build. May I suggest that you provide your intrepid kayaker, with a waterproof map of the waterways slipped under the two straps on the hatch? So as he knows where he is going and doesn't row off into the wide blue yonder. Can't wait to see a video of the kayak in action on the water. Regards, Gary.
    💬 Re: Finishing the hatch
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 136 Views · 5 Likes
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    Thanks Steve,

    I have a name in mind. All will be revealed on the maiden voyage 😉

    Graham93
    💬 Re: Finishing the hatch
    4 months ago by 🇬🇧 cormorant ( Lieutenant Commander)
    ✧ 127 Views · 5 Likes
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    Hi Graham
    What a superb build. Very well done indeed!
    I must admit to not following the build very closely. I was not set up for receiving updates, which I now am.
    Did you ever sort out a name for the paddler?
    I think we decided Eskimo Nell was a non-starter for gender reasons?
    Regards

    Steve
    📝 Buoyancy
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 149 Views · 14 Likes · 13 Comments
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    I'm concerned about the risk of the kayak sinking. It will be very low on the water and being long and narrow, it likely won't have a lot of lateral stability. Also, because of the mechanical connections to the paddle, even with a spray deck in place, it won't be possible to fully seal the cockpit against water ingress.

    To reduce the risk, I decided to fill the empty space in the hull with polystyrene beads. The red lines on the first picture show the areas to be filled. I hope this will ensure that even with a capsize, the hull will remain afloat and not disappear to the bottom of the lake.

    The hull was hung on a cord from the workshop roof and polystyrene beads were poured in to almost fill the spare space. To hold the beads in place, a handful of beads were coated with (waterproof) PVA and added to the top of the fill. Once dry, these formed a plug to hold the loose polystyrene in place. It will be a simple matter to dig out the plug and pour out the loose fill if it ever proves necessary.

    The process was repeated to fill the other end of the hull.

    Once everything was dry, it was time for a first float test in the domestic test tank. The mechanism, the RC gear, battery and the paddler were installed. It was a great relief to find that the kayak floated level, is reasonably stable and is self righting when tipped from side to side.

    All up weight is just 1kg.

    💬 Re: Buoyancy
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 142 Views · 5 Likes
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    Hi Dave,

    If ever the aerial is below the waterline I think I’ll have a lot more to worry about than loss of signal. ☹️

    With the kayak upright, both aerials are above the waterline. I admit they are not a long way above the water, but I don’t expect to be paddling at any significant distance from the shore so I expect the signal will be OK.

    Graham93
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    💬 Re: Buoyancy
    4 months ago by 🇬🇧 dave976 ( Commander)
    ✧ 141 Views · 2 Likes
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    Hi Graham
    I see you are using 2.4Ghz. My experience is that if the aerial is below the waterline thye signal drops and you lose the binding so I am interested to hear how your model performs
    dave
    💬 Re: Buoyancy
    4 months ago by 🇺🇸 pressonreguardless ( Commodore)
    ✧ 137 Views · 2 Likes
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    Your Talent knows no bounds, Graham👍👍👍👍
    It is a treat to watch your creations come to life!
    Trev
    💬 Re: Buoyancy
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 143 Views · 5 Likes
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    Thanks Peter,

    Not a clock maker, although I have made clock cases and some jewellery.

    Graham93
    💬 Re: Buoyancy
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 143 Views · 5 Likes
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    Thanks Dave,

    When I was first mulling over the idea of building the kayak, I had the idea that it would be great if
    I could make it do an ‘Eskimo roll’! I thought about how to do it for several weeks before finally giving up on the idea. Kayakers use the paddle as a ‘lever’ pushing against the water to right the kayak when inverted. The required changes in paddle position and movement are just too complex for me to engineer - I think! The other concern was the need to seal all the electronics/servos to cope with being inverted.

    From the trial in the domestic test tank, very little of the kayak is submerged. With it’s light weight and a length of almost 1m it doesn’t have much displacement. There are photos of the radio/servo/battery installation in an earlier post (before I fitted the deck)

    Graham93
    💬 Re: Buoyancy
    4 months ago by 🇭🇺 MouldBuilder ( Vice Admiral)
    ✧ 139 Views · 5 Likes
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    Superb Graham. I think there are very few people who could have done this. The build is amazing but the mechanism is just a masterpiece. Were you a clock maker in a previous life?
    Peter.😊
    💬 Re: Buoyancy
    4 months ago by 🇬🇧 dave976 ( Commander)
    ✧ 145 Views · 3 Likes
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    Hi Graham
    Don't the full size kayakers have a procedure for righting a boat. Should be fairly simple for you to program a Pic to take over control and complete the procedure in the event of a capsize. As your model will be largely submerged I am interested to see what radio you will install.
    Very impressive so far
    dave976
    💬 Re: Buoyancy
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 148 Views · 5 Likes
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    Hi Michael,

    I’m very concerned to hear that you “have no doubt at all about it sinking” . But I do understand what you mean 😂🤣

    Graham93
    💬 Re: Buoyancy
    4 months ago by 🇬🇧 mturpin013 ( Vice Admiral)
    ✧ 146 Views · 3 Likes
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    That's great to hear Graham, you may have had doubts about your creation floating. However I had no doubts at all about it sinking
    " Oh ye of little faith"

    above comment (delete-sinking) (replace with floating) read and read again🤔
    💬 Re: Buoyancy
    4 months ago by 🇬🇧 philcaretaker ( Captain)
    ✧ 146 Views · 4 Likes
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    Lookin ` good Graham !!
    ⛵
    💬 Re: Buoyancy
    4 months ago by 🇺🇸 pressonreguardless ( Commodore)
    ✧ 142 Views · 4 Likes
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    Good Insurance, Graham!!
    Well Done👍👍
    Trev
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    💬 Re: Buoyancy
    4 months ago by 🇺🇸 River Rat ( Lieutenant)
    ✧ 147 Views · 4 Likes
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    Very clever Graham! It's always good to have insurance that it can't sink into the abyss. I have one at the bottom of Taylorsville Lake near my home. I still think of it now and then. Great job, Thank You for sharing your build. Dave RR
    💬 Re: Buoyancy
    4 months ago by 🇨🇦 Newby7 ( Fleet Admiral)
    ✧ 152 Views · 4 Likes
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    Level and reasonable is a good thing. Well done.
    Rick
    📝 Stand
    4 months ago by 🇬🇧 Graham93 ( Vice Admiral)
    ✧ 153 Views · 16 Likes · 4 Comments
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    💬 Add Comment
    With the hull completed, time to make a stand that can be used for storage in the 'boat shed' as well as for transport to the lakeside.

    A pencil sketch of the required cross section was drawn and copied. The copies were then glued to 9mm ply and cut out using the bandsaw. Each plywood piece had two 9mm holes drilled for supporting cross dowels.

    I wanted to incorporate storage into the stand, primarily for the paddle, which will be removable for transport and a few tools. A simple tray formed from plywood strips was the easiest way to do this. With all the pieces cut, the stand was assembled using glue and panel pins. A bit tricky to assemble with only two hands, but once complete, the assembled stand is strong and lightweight.

    A couple of coats of "quick drying woodstain" provides protection from water at the lakeside, and covers up the mixture of different plywood offcuts that were used in it's construction. A simple lid for the storage tray is attached with cord 'hinges'. A couple of magnets hold the lid closed.

    Webbing straps loop over the ends of the dowels to form a carrying handle. The straps will also be used at the lakeside to launch the kayak. (The same straps are used with a similar stand for Scullduggery, the Bill & Ben rowing boat)

    💬 Re: Stand
    4 months ago by 🇬🇧 philcaretaker ( Captain)
    ✧ 150 Views · 2 Likes
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    Looking forward to seeing some wet paddles !!!!😁
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    💬 Re: Stand
    4 months ago by 🇬🇧 mturpin013 ( Vice Admiral)
    ✧ 150 Views · 3 Likes
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    Another first in ingenuity design and construction
    Great job Michael T
    💬 Re: Stand
    4 months ago by 🇨🇦 Newby7 ( Fleet Admiral)
    ✧ 159 Views · 5 Likes
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    Standing OVATION👍👍👍👍👍
    Rick
    💬 Re: Stand
    4 months ago by 🇬🇧 Colin H ( Fleet Admiral)
    ✧ 150 Views · 3 Likes
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    Another impressive piece of work shipmate.
    Cheers Colin.
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