Australian Retro Rambler

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Re: Australian Retro Rambler

Postby edgeau » Fri Jan 06, 2017 5:51 am

Well back at it now. Putty failed but knead it auto repair filler worked well. 2nd wall is to shape. I had to clean up a lot of mould that grew in the wet weather over Xmas. I'll do the staining and sealing now so it is protected. The plan is to cut out the windows and doors next.

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Re: Australian Retro Rambler

Postby edgeau » Sat Jan 07, 2017 4:57 am

More wet weather arrived overnight and some blew in under the tarp. That messed with the staining plan. Instead I spent the day making a workbench complete with bench dogs etc that will help considerably with the fiddly bits later.
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Re: Australian Retro Rambler

Postby edgeau » Tue Jan 10, 2017 5:14 am

Well the inside stain is 2/3 done. One more coat to go.
In the meantime I built a circle cutting jig for the portholes. Details at http://tnttt.com/viewtopic.php?t=67705

Practice paid off.
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And some lessons learned for others still researching.
Make sure the pivot point is lined up with the centre of the blade.
Set the jigsaw for straight stroke not pendulum
GO SLOW. By that I mean run the blade at full speed but only move forward slowly. Move no more than two blade widths at a time before backing off some to give the blade a chance to track true again if it has started to bend.


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Re: Australian Retro Rambler

Postby edgeau » Tue Jan 10, 2017 5:19 am

One disappointing thing. After cutting my final window I found that my ply was coming apart in the middle! Out side edges were still bonded well but I had cut into a delamination "bubble" I will be changing suppliers for the roof sheets!
I filled the gap with lots of construction adhesive and clamped it all back together to set overnight.
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Re: Australian Retro Rambler

Postby swoody126 » Tue Jan 10, 2017 8:33 am

SADLY, unless you are using a BS1088(or similar) rated MARINE PLYWOOD you wont likely be able to secure voidless or even near voidless plywood from another/any supplier :(

having a method to fill the discovered voids will likely just have to suffice

when i discover a void i try to orient the edge in question to vertical and let gravity aid in the filling w/ a slightly thickened EPOXY slurry which sometimes takes A WHILE...

SOME are saying TITE BOND II or III will achieve the same goal butt takes more time to fully cure

i am currently experimenting w/ TITE BOND III butt the jury is and will still be out for several months due to the time it takes for it to cure to a sandable state w/o gumming the grit

the POX usually cures to sandable within 24-48± hours

filling known accessable voids, up front, is in your best interest :thumbsup:

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Re: Australian Retro Rambler

Postby edgeau » Tue Jan 10, 2017 2:32 pm

Thanks SW. It was meant to be good quality marine plywood but I don't think I got what I paid for :(
Good tip about using gravity to get the adhesive, whichever you use, right down into the void.

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Re: Australian Retro Rambler

Postby swoody126 » Tue Jan 10, 2017 4:04 pm

edgeau wrote:Thanks SW. It was meant to be good quality marine plywood but I don't think I got what I paid for :(
Good tip about using gravity to get the adhesive, whichever you use, right down into the void.

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i forgot to mention that sometimes it takes a broom straw down in the blob to let an air bubble out...

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Re: Australian Retro Rambler

Postby KCStudly » Tue Jan 10, 2017 9:05 pm

What I used was sold as spec marine grade and I only found a couple of very small internal flaws in 13 sheets. Granted I didn't cut into every sheet everywhere, but still, it was good stuff.

In some cases I suspected the reciprocating action of the jig saw may have pulled the glue joint between plies, or actually separated at the wood fibers on the up stroke. Just a thought.
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Re: Australian Retro Rambler

Postby edgeau » Wed Jan 11, 2017 5:31 am

Well the glue needs more time. The tube says strong bond after 24hrs full strength a week!. I let the clamps off, prob at 20hr to be fair, and it separated still. Fresh glue, clamped again and leaving for the week. Well we will see if my patience lasts that long..
In the meantime I started on the door of the other sheet.
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Re: Australian Retro Rambler

Postby edgeau » Fri Jan 20, 2017 12:17 am

Well the glue was still too weak after a week! Looked good until I trimmed off the bits that squeezed out.
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Trying again with a name brand rather than generic.

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Re: Australian Retro Rambler

Postby KCStudly » Fri Jan 20, 2017 7:15 am

Did it separate after you removed clamps or was it not clamped/weighted thoroughly? Just saying because you wouldn't want to repeat the same thing twice and get the same result.
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Re: Australian Retro Rambler

Postby edgeau » Sat Jan 21, 2017 7:49 am

It was good for about 5 min after removing the clamps. Once I trimmed the glue that had squeezed out the ply started separating again, just not as big an area.

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Re: Australian Retro Rambler

Postby edgeau » Thu Jan 26, 2017 2:57 am

Today I got the door jambs dry fitted and then sanded ( #50, #120 then #220 grit) ready for staining.

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Re: Australian Retro Rambler

Postby edgeau » Wed Feb 01, 2017 4:07 pm

OK the second coat of Jarra stain is done. It is looking nice and rich esp when contrasted with the golden oak stain on the interior wall.
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Re: Australian Retro Rambler

Postby edgeau » Sun Feb 12, 2017 5:55 am

I have routed rebates for the porthole glass.
It is still sitting about 1mm proud of the surface. I am hesitant to take it flush as the the ply is 12mm thick and the glass is 9mm. That does not leave much wood to hold it. I figure I should just do a shallow rebate on the frame that will secure the glass on the inside.
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