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Author Topic: Model boat drawing help !  (Read 350 times)

dillinger 04

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Model boat drawing help !
« on: January 16, 2020, 04:45:52 AM »

Hello everyone






I have been playing around with the idea of drawing up my own set of basic plans or templets to build a small model steam boat.
Tool and materials I have to work from, a basic set of plastic french curve templets, and some graph paper. Progress I have made a sketch of the deck, and hull sides, however I find the basic set of french curve templets I have limited to work from with my drawings. Question has any one ever used - Alvin ship curves to draw a basic set of model boat plans if so are they worth buying as a tool to help in drawing model boats . Any help would be appreciated or other tools to work from  Thanks David
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Umi_Ryuzuki

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Re: Model boat drawing help !
« Reply #1 on: January 16, 2020, 05:22:54 AM »

I do alright with just the two basic french curves.
 O0
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derekwarner

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Re: Model boat drawing help !
« Reply #2 on: January 16, 2020, 06:04:27 AM »

David....a 12" flexible curve can be a good inexpensive investiment to compliment the set of plastic French Curves


Mind you, you still need end points, and the curve in your mind %)  to set the bend


Derek


[PS.......these appear approx 1/2 in actual $ terms than 40 something years ago..... ]
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Derek Warner

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BrianB6

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Re: Model boat drawing help !
« Reply #3 on: January 16, 2020, 06:49:19 AM »

Not sure what is in the core of current ones but it used to be lead and could break if misused.
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derekwarner

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Re: Model boat drawing help !
« Reply #4 on: January 16, 2020, 07:42:12 AM »

 %% .....obviously changed to suit Legislation of Lead poisoning .....[by some do-gooder minority  :-X   Group] ........sure my purchase [1963?] was packaged in a 3/4 diameter grey-blue cardboard tube with a Green pressed steel screwed cap .......


I like the last sentence which acknowledges the new version is not as effective as the original
..................


courtesy of Google.

Staedtler Mars Flexible Curve - Discontinued Lead Core Version
24"" - 61cm Graduated Flexible Curve
No.971 60-24
This flexible curve is the original heavy lead core version in original packaging. This item has been discontinued and replaced by a lighter metal core. This rare sought after lead core version is heavier and holds its shape better after initial set-up.
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Derek Warner

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DaveM

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Re: Model boat drawing help !
« Reply #5 on: January 16, 2020, 10:52:55 AM »

I could never get on with those flexible strips. They always seemed to have a mind of their own and would retain a slight curve no matter how much I tried to rebend them to suit a new one. I'd have bought a set of Ship's Curves about 50 years ago if only I'd found out about them. These days it's all done in AutoCAD.

DM
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paulhakits

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Re: Model boat drawing help !
« Reply #6 on: January 16, 2020, 11:22:29 AM »

Have you thought about going digital, I use autocad, basically i use the drawing technique learnt at school on the drawing board, but on the computer. I draw in 2d initially and then convert to 3d to check the parts fit correctly, its very old school but it suits me. Using a digital format means you can scale up and down and print or cnc cut component to any size.
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warspite

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Re: Model boat drawing help !
« Reply #7 on: January 16, 2020, 01:28:21 PM »

I Concur, autocad, the spline function is excellent and you could still place a start point off the boat to start the curve off if the required shape in not forthcoming.


As for curves, a colleague used to use earthing wire (sheathed in yellow and green stripes) as a way of drawing curves on graphs, we had a bench vice that he used to straighten a piece of the wire in by clamping one end and using a set of pliers with wire gripped and rolled at the end, then pulled straight, then he cut the ends off and then bent the wire to suit the shape, it would do for several curves until it kinked and then he would re straighten again, until it got to short to reuse, he then replaced with a piece long enough, cheap and inexpensive (he used company wire so no expense to him), eventually tracing the shape with a pencil.
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grendel

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Re: Model boat drawing help !
« Reply #8 on: January 16, 2020, 03:59:37 PM »

autocad, use a spline and set it to pass through the points command spline - method - fit - place points (just follow the prompts in the command line)
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dillinger 04

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Re: Model boat drawing help !
« Reply #9 on: January 16, 2020, 06:36:26 PM »

Hello everyone - who has responded to my post appreciated. I did try to utilize the free program on Trimble sketch up make
to try to make the shapes needed deck hull bottom , but I can not seem to get it to bend a straight line utilizing the program.
Auto cad sounds expensive ! and I am not that computer savvy when it come to these programs. That is way I though of asking about Alvin Ship curves as an aid to help with getting going again . I will try to send a pic of the deck I drew up it has been scale up via a copy machine. I need to re draw up the deck bigger as to get the appropriate width and length of the hull to fit the sides for a small model boat I just tried to re draw with the basis set of french curves but they are limited to shot to draw the appropriate curve bigger.



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Colin Bishop

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Re: Model boat drawing help !
« Reply #10 on: January 16, 2020, 06:41:04 PM »

You can buy ship curves, see this topic on the Model Boats website.

https://www.modelboats.co.uk/forums/postings.asp?th=148181

Colin
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dillinger 04

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Re: Model boat drawing help !
« Reply #11 on: January 16, 2020, 06:44:09 PM »

see if this works image ?
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dillinger 04

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Re: Model boat drawing help !
« Reply #12 on: January 16, 2020, 07:06:50 PM »

image of deck
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Capt Podge

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Re: Model boat drawing help !
« Reply #13 on: January 16, 2020, 07:52:41 PM »

Hello David, the images are showing ok  O0


Regards,
Ray.
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