can the 4T Ultracod compsand be saved?

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dUg
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can the 4T Ultracod compsand be saved?

Post by dUg » Sun May 13, 2012 6:58 pm

Here's my 1mmm balsa top skin going to sh1t
4t-ultracod-1.jpg
FU_FAIRY_JPEG.jpg
:cry:

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tiger
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Re: can the 4T Ultracod compsand be saved?

Post by tiger » Sun May 13, 2012 9:18 pm

Yeah, bag it! :D
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dUg
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Re: can the 4T Ultracod compsand be saved?

Post by dUg » Sun Jun 24, 2012 9:37 pm

Glassed it today. I think it's gonna be OK. :)
uc_bottom.jpg
uc_deck.jpg
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uc_deck.jpg
Last edited by dUg on Sun Jun 24, 2012 9:39 pm, edited 1 time in total.

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dUg
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Re: can the 4T Ultracod compsand be saved?

Post by dUg » Sun Jun 24, 2012 9:38 pm

us_deck2.jpg

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dUg
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Re: can the 4T Ultracod compsand be saved?

Post by dUg » Mon Jul 30, 2012 7:51 pm

So many fcuk ups on this one it's hard to remember all of them, but here goes:

- too much rocker in the tail section of the blank. I still don't know how this happened.
- laminating the skins with polyester because I'd run out of epoxy. they came apart in several places once glues to the EPS blank
- moisture getting into the 1mm top skin, causing it to bubble up in spots
- cutting the center plank 1 inch too short through the rear swallow section
- drilling the holes for the rear side fins 1inch too far back, missing the balsa block and going straight into soft foam
- sanding through the 4oz deck glass in a few spots
- having high gloss the epoxy on the deck go "beady" and sanding almost all of it off
- a few sand throughs into the glass
- cracked balsa around the nose rails on the RHS
- the decals refusing to turn clear after glassing because of wood glue used to tack them in place
- epoxy on the bottom looking blotchy after I'd wet rubbed / compounded / buffed it

In spite of these failures, I did get to successfully test several construction techniques I'll use on the next one. Some things that went well:

- planing in the foil and hardly having to shape the deck apart from the rails
- sanding the concave into the EPS then having the 3mm balsa bottom skin conform to it once glued
- the balsa rail strips lining up and conforming to the compound curves
- double lapped rails that didn't bubble up and sanded out really nicely top and bottom
- almost nil bubbles in the lam, even through the hard rear rail bottom side
- herringbone nose and tail blocks
top-front.jpg
top-rear.jpg
bottom.jpg
concave.jpg
tail-fins.jpg
decals.jpg
rail-tail.jpg

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Re: can the 4T Ultracod compsand be saved?

Post by pridmore » Tue Jul 31, 2012 10:09 pm

love the logos Dug....

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