Model Boat Mayhem - Forum

Masterclasses => Welcome to the Mayhem Build Masterclasses => Topic started by: Rodgearing on March 03, 2019, 11:02:46 AM

Title: Hull planking masterclass wanted
Post by: Rodgearing on March 03, 2019, 11:02:46 AM

I have been putting this of for over a year now the reason being it sort of scares me.
Planking the hull of my scratch built Anteo.
I started to do it with no idea and realised it wasn't going well so I stopped and a year later its as was.
So some one please help.
I have an old Anteo hull only  I bought damaged of Flea Bay for a few quid so I rubbed down the hull to expose the planking and realised it was double planked gulp so my scratch built needs double planking to.  But I thought I would do one layer of planking and the top layer GRP cos I'm ok with sticky stuff.
So the question I need something to bend the planking any hot (pun intended) tips home built steamers and benders?
What clue to stick?
Does it need to be pinned as well? If yes what size pins ?  cos there are sizes and yet more sizes.
Oh gloom this should be enjoyable but at the moment it ain't.
Title: Re: Hull planking masterclass wanted
Post by: canabus on March 03, 2019, 12:14:52 PM
Hi Rod
It may not be a master class, but this was my first crack at double planking.
https://www.modelboats.co.uk/forums/postings.asp?th=128141
A 1920's Gentleman's Runabout double plank with veneer.
Steam some of the hard ones using an electric kettle(cheap old plastic one).
Not used to make a cup a tea !!!!
Canabus
Title: Re: Hull planking masterclass wanted
Post by: grendel on March 03, 2019, 01:57:49 PM
I built my  steam bender from a wallpaper steamer and a length of 1 1/2" drainage pipe, since I bent up the ribs as well as the planks It got a lot of use.
Title: Re: Hull planking masterclass wanted
Post by: CGAux26 on March 03, 2019, 02:58:35 PM
I soak my planks in Windex for 20 minutes or so, and glue them on with medium CA while still wet.  No pins, no screws, no clamps.  Just lay down some CA on 3-5 frames and stick the plank on and hold it with your fingers for 30 seconds.  I have built two plank-on-frame boats this way with great results.  These are single planked using 1/32" balsa.


I made a plank soaker from a piece of sewer pipe just longer than the plank material.  I hang it by my bench so it's handy to the job.
Title: Re: Hull planking masterclass wanted
Post by: Mark T on March 03, 2019, 03:10:57 PM
Hi - The Anteo is a really nice tug and the planking is not that hard if you plan it out.  The only thing that makes it a bit tricky is getting around the prop tube but if your painting it a bit of filler will sort this out for you no problem. Have a look here - its not finished but we could build them together mate :)


https://www.modelboatmayhem.co.uk/forum/index.php/topic,59708.200.html
Title: Re: Hull planking masterclass wanted
Post by: Martin [Admin] on March 03, 2019, 03:48:19 PM

I soak my planks in Windex for 20 minutes or so,


Does it have to be Windex or will any Glass cleaner do?
Title: Re: Hull planking masterclass wanted
Post by: DaveM on March 03, 2019, 04:28:42 PM
Does it have to be Windex or will any Glass cleaner do?


I think it's the ammonia content of Windex which aids the bending. There are some domestic cleaners on the UK market which have ammonia in them but you'll need to experiment with the dilution and time left soaking the wood to establish the best result. I left some obechi in an ammonia cleaner solution overnight and it came out as brittle as Blackpool Rock!
DM
Title: Re: Hull planking masterclass wanted
Post by: CGAux26 on March 03, 2019, 04:34:37 PM
Yeah, I use Windex because that's what is available in large jugs.  Plus no ammonia smell, but it does contain ammonia.  So any other window cleaner should work.
Title: Re: Hull planking masterclass wanted
Post by: Colin Bishop on March 03, 2019, 05:53:54 PM
I have seen references to ammonia weakening the wood fibres to some extent. A bit of simple steaming might be a better. Depending on the thickness, not all planks will need treating anyway but it's down to personal preference really. A domestic hand steam cleaner is very useful although a gently simmering saucepan can also be used effectively.

I cannot use CA as it gives me an allergic reaction so I normally use DeLuxe Super Phatic which dries quickly and is water clean up. Very often you can hold planks in place with ordinary masking tape while the glue dries.

Colin
Title: Re: Hull planking masterclass wanted
Post by: Rodgearing on March 03, 2019, 06:30:29 PM

Hi - The Anteo is a really nice tug and the planking is not that hard if you plan it out.  The only thing that makes it a bit tricky is getting around the prop tube but if your painting it a bit of filler will sort this out for you no problem. Have a look here - its not finished but we could build them together mate :)


https://www.modelboatmayhem.co.uk/forum/index.php/topic,59708.200.html (https://www.modelboatmayhem.co.uk/forum/index.php/topic,59708.200.html)
Hi Mark it really looks good what you have done.
Adding thickness to the ribs looks like a good idea which I'm going to copy
Thanks for the tips
Title: Re: Hull planking masterclass wanted
Post by: Mark T on March 03, 2019, 06:38:31 PM
No problem if you need anything clarified just let me know. I canít stress enough just how important it is to cut a rabbet along the keel. This will save you a lot of effort further down the line
Title: Re: Hull planking masterclass wanted
Post by: Rodgearing on March 03, 2019, 07:02:40 PM
Trying to get my head around your 'rabbeting' tip I think it needs a second or even third read ;)
Title: Re: Hull planking masterclass wanted
Post by: grendel on March 04, 2019, 05:59:32 AM
my model has been all steam bending -
https://www.modelboatmayhem.co.uk/forum/index.php/topic,55508.0.html
you will see my steam generation unit and the white pipe of the steam box in some of the pictures I would bend one plank an evening, alternating sides, the plank was steamed and clamped, then the previous days plank was glued (on the other side of the boat) and clamped