Oxford II hull/deck alignment issues

First boat, first post! Hope everyone is well.

I am building an Oxford II. Stitched and glued the hull and deck a few months ago then had to set aside. Now back at it and preparing to join the hull and deck. I noticed right away that I was having trouble lining everything up, so I am taking my time over a few days to work on realignment and not rush.

1. So far, it seems that my hull is shaped a bit differently from the deck... the bow seems to have bowed downward a bit (weight from hanging off the table?), while the stern bowed upward. I found this after several "rounds" of working the two pieces to find the best alignment, settling on aligning from the center outward to observe the bow and stern. Over a few days, I have been gradually realigning the ends by propping the bow and weighing the stern down, and letting the boat re-settle. It seems to be working well, as the alignment is becoming more satisfactory all along the shell. Any thoughts, hints, or amens on this would be appreciated!

2. I've done some heat gun and putty knife work on the bow because the hull retained a shape that was a bit too wide for the deck, so I heated and re-shaped some of the epoxy work to narrow the hull into a width that better matched the deck. I add this bit because I have a similar but more significant problem at the stern...

3. First, the length of the deck and hull don't match at the stern no matter what I do. After bowing the hull back "downward" at the stern, the alignment is far better, but the deck remains a bit longer even as the stiching holes match almost all the way. Of more concern is that the widths are prohibitively different (see pics). It seems that, no matter what I have done so far, no amount of bending, stretching, or heat-gunning will bring these two together. Note that this is not a deck curvature issue because the hull is wider (!)... the deck is basically flat at the stern, so I don't think anything can be done from that side. Removing the transom doesn't seem to be the best option, as it would mean a lot of work with the removal and re-shaping (by best guess?)—with no guarantee that the second filleting would be as good at this point of construction. I am thinking of cutting a line in the center of the transom to about halfway down, filleting/epoxying the small "gap," and clamping the two sides of the hull in order to "squeeze" it into a slighly narrower shape. Still seems like some work, but with more chance for success? Since the transom will be doubled, I am confident that I can get things sealed up properly.

Thoughts? Suggestiong? Anyone with this problem? How did you address/solve? 

Thanks so much! - Bobby

https://www.dropbox.com/s/vt8z2gldxfgl68w/starboard.jpeg?dl=0

https://www.dropbox.com/s/t3oemurcvm5nf4j/sternS.jpeg?dl=0

https://www.dropbox.com/s/l2day9yxrsjr7mo/stern.jpeg?dl=0

https://www.dropbox.com/s/onl7b1gih84qp7g/sternP.jpeg?dl=0


4 replies:

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RE: Oxford II hull/deck alignment issues

Posting pics and links here are not intuitive to me... let's see if this is better.

https://www.dropbox.com/s/vt8z2gldxfgl68w/starboard.jpeg?dl=0

https://www.dropbox.com/s/t3oemurcvm5nf4j/sternS.jpeg?dl=0

https://www.dropbox.com/s/l2day9yxrsjr7mo/stern.jpeg?dl=0

https://www.dropbox.com/s/onl7b1gih84qp7g/sternP.jpeg?dl=0

  

RE: Oxford II hull/deck alignment issues

Update:

So I figured some more things out about my main alignment issue. It's amazing what a couple of days of considering and a couple of nights of sleeping on it will do.

The sides of the deck changed angle at the stern such that they are more vertical than they should be. I thought i was doing a good job of mating the bevels and filleting as the wood wanted to go, but evidently not...

So more heat-gunning and flexing, but it means I'm pulling the glass away a bit and breaking the fillets at the stern—and I'm still not at the needed angles. The question now is this: do I continue to "work" the boat as is and get the hull and deck together, filling and re-shaping the stern after? Or do I somehow take the deck apart near the stern and re-do the work, hoping that I get the angles "right?"

More pictures from today's progress:

https://www.dropbox.com/s/ftddjxzivjp6dhl/21working.jpeg?dl=0

https://www.dropbox.com/s/n1f1qobemad0u09/22better.jpeg?dl=0

https://www.dropbox.com/s/k1z61z2ot5wa2hm/23sterntop.jpeg?dl=0

 

 

RE: Oxford II hull/deck alignment issues

   Bongobob:     I have exactly the same issue on my Oxford II.     I've taken a coupole of measurements and wonder how they compare with your kit as my deck panel looks narrower at the stern than what I have seen in the manula and other blogs.    Top of my transom is 3 1/8" but the width of the deck (between mitres) is only 2 7/8".   Seems like I'll need a 45 degree flare on the deck verticals at the stern?

RE: Oxford II hull/deck alignment issues

Very interesting comments here. Thanks for posting images; I've not built an OxII so my interest is based on some posts on a UK forum hosted by an outfit that sells CLC kits in Europe.

Builders there are having the same questions.

My take is that the overlap is to be trimmed off once everything's bonded together. The extra lengths are there to facilitate clamping during the bonding operation, then is intended to come off.

Here's hoping others more familiar with a successful build will add their experiences to this thread.

 

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