Author Topic: COLUMBINE - The Boat  (Read 23338 times)

Offline b.lindsey

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Re: COLUMBINE - The Boat
« Reply #15 on: June 06, 2016, 01:19:28 PM »
Thanks Robert, it worked quite well too looking at the pictures.  Gosh I remember those surform tools from my youth but used more for woodworking. Haven't seen one in years.

Bill

Offline Robert Hornby

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Re: COLUMBINE - The Boat
« Reply #16 on: June 06, 2016, 11:53:27 PM »
Gluing the final joint of the keel last evening.

 

The finished keel, apart from some sanding. Part of the keel will be visible on the interior of the boat so that will be finished in lacquer as will be the rest of the timber work. The outer part will be fibre glassed along with the hull.







The next part will be to continue with the profiling starting with the plan view shape. I propose to print out full size end view profiles then cut each one (at 50mm intervals) out of stiff cardboard and use them as templates.

Robert


Age and treachery will always overcome youth and skill

Offline b.lindsey

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Re: COLUMBINE - The Boat
« Reply #17 on: June 07, 2016, 12:24:01 AM »
Really looking forward to seeing how all this comes together Robert. I am predicting a lot more Styrofoam dust/shavings in your future  ;)

Bill

Offline Robert Hornby

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Re: COLUMBINE - The Boat
« Reply #18 on: June 07, 2016, 01:20:32 PM »
Quite right Bill  -  here's the dust



The foam cuts very easily with a saw



And the surform tool makes light work of the shaping.



Next is the printing of the for/aft profiles and cutting out of the cardboard templates. I will have to take things very carefully with the next operation to avoid any removal of the foam as I imagine it will be tricky to fix up a stuff up.



Robert



Age and treachery will always overcome youth and skill

Offline crueby

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Re: COLUMBINE - The Boat
« Reply #19 on: June 07, 2016, 02:17:09 PM »
Will the foam be just as a form for fiberglass covering, or will it remain as the hull itself? I've done hulls with other foams, glassed/epoxy, then melt out the foam with acetone. Is that your plan, or another method?

 :popcorn:

Offline b.lindsey

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Re: COLUMBINE - The Boat
« Reply #20 on: June 07, 2016, 02:27:14 PM »
That is some nice work Robert...amazingly smooth finish you get with that surform tool!!

Bill

Offline zeeprogrammer

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Re: COLUMBINE - The Boat
« Reply #21 on: June 07, 2016, 11:48:48 PM »
So cool. Very glad to see the steps you're taking.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
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Offline Robert Hornby

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Re: COLUMBINE - The Boat
« Reply #22 on: June 08, 2016, 08:52:58 AM »
Crueby,
The foam will be removed after all the fibre glassing is complete. I am expecting to have to dig it out as Acetone will not melt it (or so I am told). I propose to line the foam with kitchen cling wrap prior to applying the fibre glass to assist the removal process.   :)
Robert
Age and treachery will always overcome youth and skill

Offline crueby

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Re: COLUMBINE - The Boat
« Reply #23 on: June 08, 2016, 01:42:50 PM »
Crueby,
The foam will be removed after all the fibre glassing is complete. I am expecting to have to dig it out as Acetone will not melt it (or so I am told). I propose to line the foam with kitchen cling wrap prior to applying the fibre glass to assist the removal process.   :)
Robert
Yeah, as I recall the acetone trick works on the styrene type foams, not on the urethane foam.

Offline Ramon

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Re: COLUMBINE - The Boat
« Reply #24 on: June 08, 2016, 03:21:12 PM »
Hi Robert,

Good to see you have made a start on your hull. It certainly looks a big lump of foam, amazing to think that somewhere inside it lurks a lovely flowing form just itching to burst out - happy 'Surforming'  :). Like Bill it's been a long time since I saw a Surform tool, I do have a very small hand held block plane version somewhere, the blade well shot, it must be 40 odd years old.

Re wrapping your form in cling film as a release aid, I know you have a friend well versed in moulding - have you or he tried using the brown glossy parcel tape as such? Makes for covering it much easier especially in corners and has a super self releasing surface.

Just a thought  ;)

Regards - Ramon
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Offline scc

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Re: COLUMBINE - The Boat
« Reply #25 on: June 08, 2016, 05:54:58 PM »
Hi, Robert,           I'm following this and enjoying every minute.   Thanks for posting and the great photos.                   Terry

Offline Robert Hornby

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Re: COLUMBINE - The Boat
« Reply #26 on: June 08, 2016, 11:03:18 PM »
Ramon, thank you very much for the tip on the packaging tape. I do have half a roll left over from our house move a couple of years ago, (and I knew where it was - http://www.modelenginemaker.com/Smileys/default/woohoo.gif )
Robert
Age and treachery will always overcome youth and skill

Offline Johno

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Re: COLUMBINE - The Boat
« Reply #27 on: June 09, 2016, 07:35:29 PM »
Hi Robert,

Following along with great interest. I can see that the fibreglass/resin will follow the smooth contours of the foam on the inside of the hull, what are your plans for the outer profile, are you going to represent wooden planking?

Cheers

Ian   

Offline Robert Hornby

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Re: COLUMBINE - The Boat
« Reply #28 on: June 10, 2016, 12:56:15 AM »
Hi Ian,
The plan for the outer face of the hull will be smooth just like the prototype (see the photos near the start of this thread). Obviously the prototype would have/is timber but after I paint the fibreglass it will look the same. I had considered building the hull in wood but I was not too sure of my abilities to get it as good as I would like. I will spend time in getting the glass smooth and without ripples. There is a name for a smooth hull but it escapes at the moment.  :ShakeHead:
Robert
Age and treachery will always overcome youth and skill

Offline 10KPete

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Re: COLUMBINE - The Boat
« Reply #29 on: June 10, 2016, 01:44:24 AM »
There is a name for a smooth hull but it escapes at the moment.  :ShakeHead:
Robert

Fair

Pete
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