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    row row row your boat
    by jacko πŸ‡¬πŸ‡§ ( Warrant Officer)
    πŸ“£










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    13 Posts 48 Comments 0 Photos 50 Likes
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    πŸ“ update on row row
    1 month ago by jacko ( Warrant Officer)
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    after a test i found that belt slip was bad very bad so been trying an old printer belt 3mm wide and motor, having to glue bits to the center drive disc then trying to glue the cut belt back together this worked fine now having trouble setting the motor but getting there photos to follow
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    πŸ’¬ Re: update on row row
    1 month ago by Martin555 ( Vice Admiral)
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    Looking forward to seeing the photos Jacko.

    Martin555.
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    πŸ“ power fin
    4 months ago by jacko ( Warrant Officer)
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    took my part completed row boat to the club house and after a bit of banter the topic got round to sculling a row boat but unable to config a figure 8 motion for the ore . Looking on the internet i found a power fin see video will this be my next challenge
    Power Fin, easyest sculling system for your boat.
    ▢️
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    πŸ’¬ Re: power fin
    4 months ago by Nerys ( Captain)
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    There is a traditional version of the fin, Chinese if I remember correctly. It's called the Yuloh. It's a long sweep over the stern, balanced on a fulcrum but it also has a lanyard which is fastened between the oar and the boat and evidently this makes the oar move in the figure of eight movement just by pushing back and fore. I know that sounds a bit vague, but it's a difficult thing to describe. I am a great believer in sculling, so much easier to handle a boat in confined spaces. Unfortunately it's not often seen in amateur boating circles, but is mainly used by professional boatmen such as sailing barge crews.

    Nerys

    version
    lanyard
    boat
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    πŸ’¬ Re: power fin
    4 months ago by Martin555 ( Vice Admiral)
    Flag
    Hi Jacko,
    Simple but extremely affective.
    Would be interesting to see in action on a model.

    Martin555.

    model
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    πŸ“ video test of meck
    4 months ago by jacko ( Warrant Officer)
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    built on a base board that fits into row boat now to fit servo for left / right both drive and main drive
    row row boat meck
    ▢️
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    πŸ’¬ Re: video test of meck
    4 months ago by MouldBuilder ( Lieutenant Commander)
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    Very good mechanism and well built.😊
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    πŸ’¬ Re: video test of meck
    1 month ago by Martin555 ( Vice Admiral)
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    Hi Jacko,
    Any news on your row boat ?

    Martin555.
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    πŸ“ rowing meck update
    4 months ago by jacko ( Warrant Officer)
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    just a little more on the meck but one side will have to be removable to fit drive belt when the worst happens
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    πŸ“ meck update
    4 months ago by jacko ( Warrant Officer)
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    had a few hours this afternoon so started in the drive meck for the ores still a bit more to do with this as waiting on some bits from china
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    πŸ“ waiting
    5 months ago by jacko ( Warrant Officer)
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    parts waiting to arrive all the way from china then i can get on with the build 🀞😁
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    πŸ’¬ Re: waiting
    5 months ago by Martin555 ( Vice Admiral)
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    Jacko,
    It seems crazy how a lot of the parts we need for our projects come all the way from China.

    Please keep us updated.

    Martin555.
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    πŸ’¬ Re: waiting
    5 months ago by RNinMunich ( Fleet Admiral)
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    Mornin' Martin,
    "It seems crazy how a lot of the parts we need for our projects come all the way from China."
    Mine don't! After one bad experience (Customs & postage) with a HobbyKing delivery from China I make sure to only order from them if available in their EU or UK depots.
    Most bits / materials I source from Krick or similar here in Germany; delivery in 1 to 3 days and often post free. Some etch or cast parts I get from Italian, French or Czech sources within a week or so.
    The 'apparently' cheap Chinese price is often NOT by the time you actually get the goods in your sticky fingers! πŸ€”
    Cheers, Doug 😎
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    πŸ’¬ Re: waiting
    5 months ago by Cashrc ( Sub-Lieutenant)
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    I don’t order from Hobbyking unless the product is in a US warehouse. The service is pretty good from there, however, if it comes from the β€œGlobal” warehouse(s) then it’s rolling dice on when you see your goods, plus they send them β€œsignature required” which means I have to go to the Post Office to sign for the goods. I work 8-9 hours a day, don’t want to run all over town after work. I use Cornwall quite often, am very happy with their prices and service. I would probably order from Krick but I don’t think the Krickstore ships to the US. I also peruse EBay and RCgroups classifieds. I have quite the collection of older brushed speed controllers, motors, and non-digital servos, as I still find them quite useful...my Neptune utilizes an old Futaba MC210 speed control that I think I paid 15 dollars for.
    My buddy JP orders from Banggood and is fairly happy with their service, seems to think they have Hobbyking beat on several levels.

    product
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    πŸ’¬ Re: waiting
    5 months ago by Martin555 ( Vice Admiral)
    Flag
    Doug,
    My wife recently ordered an item from eBay for a birthday present and the items location stated London U.K.
    So item was purchased and then we discovered it was in China.
    It turned out that this person advertises items on eBay, then when you order from him he then orders it from China to be sent to your address.
    Most annoying.

    Martin555.
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    πŸ’¬ Re: waiting
    5 months ago by redpmg ( Lieutenant Commander)
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    Basically its all our own fault - the internet and the instant coffee generation who have no intention of building anything........
    We have killed a lot of shops including the Hobby ones in our pursuit of "better prices" and its so much easier to scan the net than get up and drive/walk down to our local shop which will also might be a little more expensive. In the seven years I lived in Bournemouth watched 5 model shops close down and the last two have subsequently closed too.
    You don't get much chance of bargains either over the internet - advised by Channel 4 one day that they were selling about 30 or so old brand new kits (Billings etc) for someone for about 1/3 of the then current price - also have a nice plastic hull which Barry of Westbourne gave me for nothing - asked if I wanted it when picked it up from the counter to have a look. It had been slightly over-trimmed in one spot - 2 minute fix.
    All 3 local video shops here have closed down in the last few months - could not compete with Netflicks
    And if work on Artificial Intelligence continues at its current pace there will be very few jobs for either blue or white collar workers to use a non PC phrase........ all will be done by specialised robots - and if they ever did become self aware (which is a possibility) we will end up with a real "Terminator" type scenario - frightening thought - so it would appear we are the basic cause of our own downfall...........
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    πŸ’¬ Re: waiting
    5 months ago by Martin555 ( Vice Admiral)
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    Red,
    Not only that a lot of stuff is manufactured so cheaply but they charge a fortune for it.

    GREED!!

    Martin555.
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    πŸ’¬ Re: waiting
    5 months ago by jbkiwi ( Commodore)
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    Re - Basically its all our own fault - the internet and the instant coffee generation

    Or perhaps ending up like in the NZ/US/SA co-op movie District 9 ?
    JB
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    πŸ’¬ Re: waiting
    5 months ago by redpmg ( Lieutenant Commander)
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    Not sure I believe in Aliens JB - there are enough real and tangible problem things around to frighten me silly ............
    Not a bad movie though - must have been cheap using the squatter camps as a film location...........
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    πŸ’¬ Re: waiting
    5 months ago by Nerys ( Captain)
    Flag
    .
    I rarely buy anything from China and as far as Hobbyking are concerned would prefer to order only from UK and EU warehouses, even then, I invariably find things are not in stock. I like getting things in my sticky little fingers, so try to stock up at shows but do use a couple of mail order companies as well. Screws, nuts and bolts, brass strip and sheet all come from Ebay.

    Nerys
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    πŸ’¬ Re: waiting
    5 months ago by MouldBuilder ( Lieutenant Commander)
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    I like Hobbyking but I must agree, UK and EU (for now at least) only. I ordered a few things on the Global region with mixed results. Most were ok with no additional costs, right up until I ordered a small pump. I had a letter saying that before delivery I had to pay £12 for customs and £8 to the post office for extra inconvenience. Not again...I think.😠
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    πŸ’¬ Re: waiting
    5 months ago by Martin555 ( Vice Admiral)
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    I had a similar thing happen to me some time ago.
    It was advertised for Β£20.00 and at the time that seemed quite cheep.
    It arrived and i thought wow that was good i now know were to get it from when i need another one for another project.

    Two weeks later i get a letter from HM Revenue and Customs stating that i owe them Β£30.00 custom duty for that item.
    So i am extremely carful and a bit suspicious now when ordering things.

    Martin555.
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    πŸ’¬ Re: waiting
    4 months ago by RNinMunich ( Fleet Admiral)
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    "so it would appear we are the basic cause of our own downfall..........."
    With the notable exceptions of catastrophic meteorite impacts and volcanic eruptions etc, Isn't that always the case Red?☹️
    😎
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    πŸ“ twin servos
    6 months ago by jacko ( Warrant Officer)
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    now looking at running 2 servos on continuous rotating but having trouble sinking them (Glug glug glug!πŸ˜πŸ˜‰πŸ˜Ž) any help out there i am using 2 x 9g servos, so the row boat can turn ????

    9g servos
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    πŸ’¬ Re: twin servos
    6 months ago by Graham93 ( Warrant Officer)
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    jacko,

    Very difficult to synchronise two continuous rotating servos. They will almost certainly run at slightly different speeds due to friction, manufacturing differences etc. Even if they run at the same speed, tiny changes in loading on each oar for example will change their speed and knock them out of step. There are lots of videos on YouTube showing rowing mechanisms. With a continual rotating servo, the solution seems to be to use one, and then have a separate servo to adjust the drive to each oar, using a clutch as in the attached YouTube example. Trying to sync two continual rotating servos is really tricky. It would need sensors on each servo to measure their relative positions, and then some control unit using these sensors to keep the servos in step.

    Other solutions use normal servos for each oar, and use some control electronics to drive them both in sync, or out of sync when turning. This is the approach I plan to use.

    Regards
    Graham
    RC ROWBOAT MECHA
    ▢️
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    πŸ’¬ Re: twin servos
    6 months ago by Martin555 ( Vice Admiral)
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    Very clever system,
    Work extremely well, one if the best i have seen.

    Martin555.
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    πŸ’¬ Re: twin servos
    6 months ago by Graham93 ( Warrant Officer)
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    Martin,

    It is a clever solution. I feel I should just point out, just to avoid any confusion, that I didn’t build it. It’s simply a video I found on YouTube.

    Regards
    Graham
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    πŸ’¬ Re: twin servos
    6 months ago by jacko ( Warrant Officer)
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    wow thanks so this is the one i need to make

    again thanks
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    πŸ’¬ Re: twin servos
    5 months ago by Martin555 ( Vice Admiral)
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    Hi Jacko.
    How are you getting on with your row boat ?

    Martin555.
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    πŸ“ test
    6 months ago by jacko ( Warrant Officer)
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    sides trim'd down varnished 4 coats
    Monday is on the water test so hopefully all will be well will post video work or fail it will be show'n

    only managed to get a 4 second film it worked
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    πŸ’¬ Re: test
    6 months ago by Martin555 ( Vice Admiral)
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    I am looking forward to seeing the results Jacko.

    Martin555.
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    πŸ“ row boat
    7 months ago by jacko ( Warrant Officer)
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    now the sides have been added waiting for the glue to dry

    then to trim down to size
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    πŸ“ it sort of works
    7 months ago by jacko ( Warrant Officer)
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    well what can i say it sort of works with a bit of fiddling lets see

    then the crew arrived ! ! ! !
    20190918 2042141
    ▢️
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    πŸ’¬ Re: it sort of works
    7 months ago by Martin555 ( Vice Admiral)
    Flag
    Very good, there is a lot more involved in it than you think.
    You are doing a great job.
    Well done.

    Martin555.
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    πŸ’¬ Re: it sort of works
    7 months ago by figtree7nts ( Vice Admiral)
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    Hi Jacko,

    Excellent work!

    I have a crew of Minions as well.
    But there still in the package!

    I haven't found the right boat for them yet!😁

    Cheers, Ed
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    πŸ’¬ Re: it sort of works
    7 months ago by jbkiwi ( Commodore)
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    Looks to be working perfectly!
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    πŸ’¬ Re: it sort of works
    7 months ago by MouldBuilder ( Lieutenant Commander)
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    That is very clever. Very smooth.πŸ‘
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    πŸ’¬ Re: it sort of works
    7 months ago by Graham93 ( Warrant Officer)
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    Looks great!!
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    πŸ’¬ Re: it sort of works
    6 months ago by mturpin013 ( Commander)
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    "well what can i say it sort of works" that an under statement, its brilliant.
    What we need now are some detailed drawing so we can all have a go. please.
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