Topic: Project 2021 - Building from plans (Read 4062 times)

Martin (Admin) · « **on:** January 09, 2021, 05:28:32 pm »

Afternoon all!

I've had a go, once before, at building from plans..... due to lack of motivation with current projects, thought I'd take on another project & have another go.... instead of finishing projects I've already started! ( It's a 'bloke' thing girls! )

This is an area selected areas of a plan:

( Heavily edited to avoid copyright issues )

I know enough to copy and redraw the sections for cutting out:

Martin (Admin) · « **Reply #1 on:** January 09, 2021, 05:30:08 pm »

.... so what's next?

TheLongBuild · « **Reply #2 on:** January 09, 2021, 05:36:59 pm »

~~Cup~~ Mug of tea.

dougal99 · « **Reply #3 on:** January 09, 2021, 07:06:17 pm »

You need a keel, slots in the frame for the keel and cut outs in the frames to take longitudinal pieces. You will also need to work out how much of the frames you need to remove to give internal space.

But first get yourself a building board 2cm thick mdf is good.

I can send a pdf on planking if you wish.

RST · « **Reply #4 on:** January 09, 2021, 07:20:14 pm »

Draw all the thickness of your wood onto the plans and remember if you want to stay true to them, cut accordingly. And remember when fairing the hull, allow for the angles, leave a few extra mm on the sections with more angle (bow and stern) so when you fair them back before planking that you still have the same section.

....lastly, nothing wrong with taking the opportunity of adding a couple of mm on the beam and draught if it will make the final model more stable or easier to construct.

PS plan where the motors and rudder will be including access hatches -I always screw up and have to hack some wood out after! Never put something mechanical where you can't get to -itll be doomed to fail.

Mark T · « **Reply #5 on:** January 10, 2021, 02:09:15 pm »

Quote from: RST on January 09, 2021, 07:20:14 pm

Draw all the thickness of your wood onto the plans and remember if you want to stay true to them, cut accordingly. And remember when fairing the hull, allow for the angles, leave a few extra mm on the sections with more angle (bow and stern) so when you fair them back before planking that you still have the same section.

....lastly, nothing wrong with taking the opportunity of adding a couple of mm on the beam and draught if it will make the final model more stable or easier to construct.

PS plan where the motors and rudder will be including access hatches -I always screw up and have to hack some wood out after! Never put something mechanical where you can't get to -itll be doomed to fail.

This is great advice - also if your working from plans know your lines

So when you cut your wood are you cutting to the inside or the outside of the line. If you measure the plans you will know which it is as getting it wrong can make quite a lot of difference - good luck with the build are you going to do a build log??

Martin (Admin) · « **Reply #6 on:** January 10, 2021, 02:34:58 pm »

Quote from: Mark T on January 10, 2021, 02:09:15 pm

.... good luck with the build are you going to do a build log??

Yes.... just gathering ideas and checking stuff.... you know, measure twice, cut once!

Then throw it away and start again!

Mark T · « **Reply #7 on:** January 10, 2021, 03:17:58 pm »

Quote from: Martin [Admin] on January 10, 2021, 02:34:58 pm

Yes.... just gathering ideas and checking stuff.... you know, measure twice, cut once!

Then throw it away and start again!

Excellent

- You'll get used to the throwing away. I Feel like half of Sherwood Forest has been through my home lately..........and straight in the bin

Martin (Admin) · « **Reply #8 on:** January 10, 2021, 03:59:06 pm »

How about Foam board?

https://www.amazon.co.uk/gp/product/B071RZZ17R/ref=ox_sc_act_title_2?smid=A3V82QOCA759KZ&psc=1

A1 Size 5mm White Foam Board Pack of 10 (Strong and High Quality) Size 594x841mm - £24.99

Martin (Admin) · « **Reply #9 on:** January 11, 2021, 11:42:24 pm »

I'm actually planning on building from the Jim Pottinger plan of Sea Shepherd (Model boats Feb 2009 ),
after seeing Doug's wonderful model at Deans Marine last year. - Model boat shows.... remember those?!

( Distorted for copyright )

Studying the plans, can someone explain to me the lines / No.s on the bow please - WL 3 2 1 - and how I use them?
( Do I need them at this stage? )

dougal99 · « **Reply #10 on:** January 12, 2021, 01:33:26 pm »

WL is the water line. The others are buttock lines which are useful if you are building 'bread and butter' style. Heresy alert: I have never used them when building plank on frame. Others may have their own ideas.

dougal99 · « **Reply #11 on:** January 12, 2021, 01:43:45 pm »

This diagram hopes to explain how you can correlate one view with another using the buttock lines. A useful cross check for plan inaccuracies.

Martin (Admin) · « **Reply #12 on:** January 12, 2021, 02:50:34 pm »

Thanks Doug, making a start...

dougal99 · « **Reply #13 on:** January 12, 2021, 04:35:27 pm »

Martin, just so you know, my model was built at 80% of the published plan. Using the plan as is yours will be considerably bigger.
Good start, just needs som wood and spray glue for the next stage. Good luck

Big Ada · « **Reply #14 on:** January 12, 2021, 04:41:01 pm »

So, no Carte Dor Hull this time?.

Martin (Admin) · « **Reply #15 on:** January 12, 2021, 05:10:37 pm »

I think mine comes out 75%

Plans 32" 810mm
Scaled 24" 610mm

Martin (Admin) · « **Reply #16 on:** January 12, 2021, 05:23:55 pm »

Quote from: Big Ada on January 12, 2021, 04:41:01 pm

So, no Carte Dor Hull this time?.

It's a thought....

RST · « **Reply #17 on:** January 13, 2021, 12:29:47 pm »

Buttock lines can be helpful in PoF also if you want some extra longitudinal bracing at bow and stern where the frames are more likely to twist as you apply the planking. Depends how many stringers you use.

Ps: the horizontal lines 1 to 3 are waterlines also

Martin (Admin) · « **Reply #18 on:** January 13, 2021, 02:30:28 pm »

Many thanks!

Barry · « **Reply #19 on:** January 14, 2021, 07:44:36 am »

http://www.wmunderway.mysite.com/cont/hullcont/hullcont.htm

Martin (Admin) · « **Reply #20 on:** January 14, 2021, 09:09:42 am »

Good read!

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Author Topic: Project 2021 - Building from plans (Read 4062 times)

RST

RST