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Author Topic: IOM Triple crown  (Read 5023 times)

bbdave

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IOM Triple crown
« on: May 15, 2013, 08:51:28 PM »

I am looking to build a triple crown I have downloaded the lines and now looking for a suitable material to make shadows which will be discarded once planking is finished any ideas other than ply something that I can cut accurately and easily lite ply would be good but it warps to readily
I have seen a foam type card used but can't think what it's called it was about 4mm with a foam core between paper outers maybe a sign making material any ideas or is it to be ply?




Dave
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bbdave

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Re: IOM Triple crown
« Reply #1 on: May 15, 2013, 09:13:47 PM »

I think this may do the job any opinions?


http://www.artdiscount.co.uk/product/white_foam_board_/
[/size]
[/size]Dave
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tony23

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Re: IOM Triple crown
« Reply #2 on: May 16, 2013, 08:44:53 PM »

why not use 4mm hard grade balsa sheet
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bbdave

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Re: IOM Triple crown
« Reply #3 on: May 17, 2013, 06:56:32 AM »

why not use 4mm hard grade balsa sheet


I had thought that as an option but it seems such a waste of wood


Dave
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Circlip

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Re: IOM Triple crown
« Reply #4 on: May 17, 2013, 10:56:27 AM »

Check "Foam board" but it wont be as stable as Liteply for shadows. Orange boxes used to be a source for thin pine shaeet.
 
  Regards  Ian.
 
 
  http://www.foamboard-store.co.uk/acatalog/About_Foamboard.html
 
 http://www.tri-dee.com/Sintra%20sheets%20information.htm
 
 A couple for perusal.
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Circlip

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Re: IOM Triple crown
« Reply #5 on: May 17, 2013, 11:40:04 AM »

Just thought of another.
 
 Before the days of material exotica, we had a material called "Hardboard", it was used for all DIY modernising, worse than chipboard.
 
  One face was smooth, the other rougher and looked like crosses, basically compressed paper fibre with a binder.
 
  Modern equivalent is smooth on both sides and now called "MDF". Used as a backing in photo/picture frames.
 
  Regards  Ian.
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bbdave

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Re: IOM Triple crown
« Reply #6 on: May 17, 2013, 04:36:20 PM »

Lite ply tends to warp fairly quickly which was my concern with using it for shadows I guess I could make internal bracing for it which might stop it. I thought the foam board would be more stable the hull will be planked with soft 3mm balsa before being glassed so not much stress during the planking.




Dave
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triumphjon

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Re: IOM Triple crown
« Reply #7 on: May 17, 2013, 10:05:29 PM »

if its only being used during the build can you not use ordinary plywood ? most of the shadows ive seen remain on the building board when the outer shell is removed !
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bbdave

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Re: IOM Triple crown
« Reply #8 on: May 18, 2013, 06:54:46 AM »

if its only being used during the build can you not use ordinary plywood ? most of the shadows ive seen remain on the building board when the outer shell is removed !


I was just trying to be Eco. And trying to see if there was an alternative to using decent wood that will be scrapped I was even trying to think of an alternative planking material as it is only there to support the glass matting but the IOM rules don't allow anything other than wood or FG for hull building.




Dave
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triumphjon

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Re: IOM Triple crown
« Reply #9 on: May 18, 2013, 07:04:03 PM »

at least if you make the shadows in ply they should be good to build another hull from should you wish later !
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Samuel

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Re: IOM Triple crown
« Reply #10 on: September 17, 2013, 05:37:46 PM »

I used 4mm twin wall polycarbonate for the shadows
i then glued the planking with hot glue & it bonded into the gaps in the twin wall
 
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CJ1

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Re: IOM Triple crown
« Reply #11 on: October 02, 2013, 10:41:44 PM »

Dave,
I've just started a Goth in balsa and used 3mm balsa as shadows. I was able to get all the shadows out of just three 1metre x 10cm planks. Balsa should be easy to get out of the hull afterwards too. They were very stable when planking up and took pins well.
Chris
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