Model Boat Mayhem
Technical, Techniques, Hints, and Tips => Engineering Techniques and Materials. => Topic started by: rickles23 on March 31, 2012, 01:17:57 pm
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Hi,
For a spare hull that I have I decided rather rashley to have it propelled by a moving figure with a single oar over the transom.
As I am mechanically challenged I would like to find someone who is prepared to make the figure and send it to me here in Australia.
A negotiated fee is on offer and I do have the plans.
Regards
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Hi. We have a wonderful RC row boat at our club at Black Park near Pinewood Studios. Even plays music.
See http://www.youtube.com/watch?v=Onj0I3Z5NOk (http://www.youtube.com/watch?v=Onj0I3Z5NOk) I believe Frank Hollis made the figures out of various doll figure parts to achieve the right scale and articulation.
He also had an incredible Gondola too, although I understand that is not operational now.
See http://www.youtube.com/watch?v=63zih5fMbSs (http://www.youtube.com/watch?v=63zih5fMbSs)
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when you say a single oar over the stern do you mean like a punter on a gondola or like a canoe?
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I think he means sculling Mike.
Single oar in a central notch
in the transom used in a figure
of eight movement with a twist
of the oar at the same time.
I can do it easier than explain it
Ned
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Hi Mike this may help you understand
http://councill.home.mindspring.com/sbjournal/sculling/scull1.html :-))
aye
john
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Thats what Ive been doing
for the past fifty years
O0 O0 O0
Ned
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Check out the yuloh - the chinese way of getting the sculling motion with just a side to side movement.
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Hi all,
I know all about sculling BUT I need someone to make the control unit.
The plan as such means nothing to me.
I am mechanicaly challenged.
Regards
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There was one appeared as a freebie plan in a mag waaaaay back. If I remember right, it was a sculling dinghy using an Action Man as crew, who had been sawn in half with the top half worked by a servo for both power and steering. Propulsion was achieved by waggling the thumb, steering by ceasing to waggle with the thumb in the right place. Again, if memory is right, it was called !Happy Harry".
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did you manage to find an engineer? can we see the plan?
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hi, is this what you are makeing i made this some years ago hope you can see pictures
(http://s17.postimage.org/xjx3n2rxn/scoll1.jpg) (http://postimage.org/)
(http://s16.postimage.org/o0cug0xzl/scoll2.jpg) (http://postimage.org/)
(http://s13.postimage.org/6cd4i8bg3/scoll3.jpg) (http://postimage.org/)
davidjt
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cant see them close up it, when i click them it goes to picture upload screen
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Same for me David
Ned
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(http://s11.postimage.org/5o7b5az6n/scoll1.jpg) (http://postimage.org/image/5o7b5az6n/)
not very good with pics thats why i dont normaly bother hope you can see this one
davidj
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can we see the mechanicals or is it hidden away?
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hi,
sorry its all built in under the man,
i was just seeing if this was what he is looking for,
will try to gain access, its a few years since i built it.
davidj
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dont break it whatever you do, i was just curious as ive been pondering since i read this post how i would do it if i were building this model. I have an idea but it wouldnt reverse.
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cant see them close up it, when i click them it goes to picture upload screen
Open another tab, do something else for a while. The picture services do take their own sweet time.
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hi, mad mike
sorry cant get inside without breaking it so will leave it.
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Hi all,
The photos are ok and its what I need for the hull.
BUT I do need someone to make me the mechanism and build it into a doll figure.
Regards
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Do you think you could post the plans so we can take a look?
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Hi,
I shall do that as soon as I can.
Regards
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Plans as requested.
Regards
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accoding to these plans this boat does not steer you know. its simpler than you might think actually.
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accoding to these plans this boat does not steer you know. its simpler than you might think actually.
having another look it might steer if you wiggle the stick the left a bit of to right
pm sent
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having another look it might steer if you wiggle the stick the left a bit of to right
pm sent
Like I said in post#8 "Propulsion was achieved by waggling the thumb, steering by ceasing to waggle with the thumb in the right place."
Just like on a real sculling boat, steering happens with the position of the oar when coasting.
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looks like its the same plan
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Hi,
Steering is easier than you think when using a single oar. I was originally taught by a good friend in China.
Regards
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Hi, Rickles
Thanks for showing the plan - this is indeed the Happy Harry I made a couple of years ago - steering and propulsion are pretty straightforward, and so is the servo linkage.
The layout of servo, wee man and his oar (scull) are closely related to the boat, but could be adapted to suit
Does the hull you have resemble the Happy harry hull - does it have a seat at the stern?
btw - I am an Engineer
andrew
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so am i pm allready sent muhaha %%
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For all who replied to my need for an Engineer:
I am in negotiations with Mad_Mike.
To andrewh,
I have a small light fibreglass hull which is easier to maintain as I sail in salt water. It has no seat as yet. I plan to leave the transom until I get the figure.
Regards
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Hi,
An interesting parcel arrived today and after a few minutes I had my sculling figure. This was made by Mad_Mike, who I would like to thank for making it, and I quickly set it up to get a couple of photos.
All I need now is more weeks in my day to finish work on the boats I have underway as we have our annual model boat show in June.
Regards
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crikey that got there fast i wasnt expecting it to turn up at your end for weeks. hope you like it :-))
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Hi Mad_Mike,
It got here very fast, the Post Office really pulled their digit out on this parcel. I thought later this month or early May!
Do I like the figure?
It's brilliant
Done in the best traditions of Modellers everywhere. I have personally never met you except via this forum and some emails. You come up with the ideal solution.
By the way I sent my elder Sister a Care-Flight Bear by Post and it got sent back to me as they could not contact my Sister. After a couple of months and exchange of emails I sent it on its way again. It got there after traveling some 36.000 miles. The bear now has its own little passport made by the Care-Flight people.
Regards
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ah good. im not sure how your going to get the seat level with the top of the boat like {:-{ i made it to the plans but it seems that the boat is a little smaller. either his legs need repositioning so that stretched out or need cutting off at the ankle.
Im sure youl come up with something :-))
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Hi Mad_Mike,
I must admit I had a false floor in the boat to make the figure balance there as his arms were not glued in.
I have measured it the way its supposed to go and the figures seat is a half inch from the top at the stern, plenty of room for him and the servo.
The battery and other gear will be forward of the figure hidden under a tarp.
Regards
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HI thought you might like to see a few pics of mine, uses a 12 inch jack, the treasure chest has an mp3 player and amp inside, playing pirate songs, the speaker resides under his coat.
(http://s13.postimage.org/usgjhcakj/CIMG0875_600_x_450.jpg) (http://postimage.org/image/usgjhcakj/)
more pics to follow when i don't get connection reset messages.
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Hi hollowhornbear,
Looks good!
I started the hull today...soaking strips of wood in hot water ready for bending.
What is the angle for the oar?
Regards
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it shouldnt make much difference as long as the oarblade is just under the water. The arc of the oar wont change what ever the angle the oar is at just the distance between the blade and the fulcrum. Adust the angle to what works for your boat, i think the angle that hollowbear has his oar will foul the corners of the boat on yours.
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sorry forgot to say the figure is still loose jointed at the shoulders, so i can adjust the angle as necessary and bring ithe oar in to the position in the pic for transport.
(http://s14.postimage.org/xmai36nnx/skulling_jack2.jpg) (http://postimage.org/image/xmai36nnx/)
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(http://s16.postimage.org/yo4lrqs9d/skulling_jack3.jpg) (http://postimage.org/image/yo4lrqs9d/)
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Hi,
Finally got a few minutes to myself so onward to find this ex pirate a new home.
Stand made, I always do that first.
Wood strips steamed and pegged out to get the right shape.
Transom made from some veneer I was given. Truth be told it was a 6 x 4 feet sheet.
Seat measured and cut out and trial fitted.
Regards
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looks like its all fitting togeather nicely, so far so good :-))
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Hi Mike,
You can see the gap now I have the figure in the right place.
With the oars I am trying carbon fibre, the same that I use as masts in the footy yachts.
They are fairly stiff and I have not broken one yet!
Regards
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Hi all,
Just a bit of a problem uploading posts tonite.
I have had to move the figure to a better angle so that the servo now gives equal thrust(?) to both sides now and has inspired me to redesign the boat to simulate battle damage.
Anyone know where I can get a scale bird skeleton???
Regards
(http://s18.postimage.org/gv6d3qdnp/image.jpg) (http://postimage.org/image/gv6d3qdnp/)