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Thread: Tom Cat
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18th October 2017, 07:00 PM #376Senior Member
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171 Mast Hoops
Well, the plugs are all done and fitted so am ready for the final glue up assembly but the weather for the last few days has been atrocious! Cold and rain almost non-stop so it’s on the back burner.
However, referring back to Post #365 I had been able to finally order the plumbing piece I needed for the Mast Hoops last week and they have arrived and been picked up. I purchased two just in case, and I think they will work out just fine. I was advised to go with a Long Spigot End Plug by the man at Vinidex and the material is PE100 Polyethylene SDR 11 if interested. Made in Turkey, go figure! The dimensions are 140mm OD with 114mm ID giving a wall thickness of 13mm and the usable length is 90mm so I’m thinking of cutting the first one at 8mm or thererabouts and make a decision after stressing that to see what happens. It’s a bit of an experiment and I welcome any input at this point.
P1010598-1.jpg P1010595-1.jpg P1010594-1.jpgLaurie - away from the sea
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18th October 2017 07:00 PM # ADSGoogle Adsense Advertisement
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19th October 2017, 02:01 PM #377
I've made hoops like this, though I don't like them much. They're noisy, stack poorly, like to tear up varnish, etc. I found you have to generously radius the inside edge, so they can slide up and down better. I also found you need to use heat, to really smooth out the granulation that occurs when you sand the round overs. I used a torch, and just quickly waved it over the edges. I did this several times until they "laid down" smooth. Once you run a router and sander over this stuff, you see what I mean. I used schedule 80 PVC pipe for this, not that particular product. Find out what the UV resistance is on that stuff. Given the choices, I'd lace, instead of using hoops, but I understand why you'd consider the hoops on this build.
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30th October 2017, 02:49 PM #378Senior Member
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172 Mast C…
Finally got some weather that I was happy with and the final glue up of the Mast is complete!
Pretty happy with the outcome – just hope I’ve used enough glue as it is difficult to ascertain from the outside. There wasn’t a lot of squeeze out but I guess when I trim the ends we’ll see what we finally ended up with. I took some advice found on the net and used plastic ties in lieu of clamps etc.
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Going forward will be a big planing job to finally bring her to the required round profile. I will follow the time honoured trimming 8 > 16 > 32 siding and then hand sanding. Seems like it may take a while!
P1010608-1.JPG P1010610-1.JPG P1010612-1.JPG P1010614-1.JPGLast edited by DavidG; 25th January 2018 at 07:00 PM.
Laurie - away from the sea
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30th October 2017, 05:11 PM #379
Looks nice and solid from here!
What was the spacing between the ties? They seem to be closer at the top end but it could be the photo angle.
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30th October 2017, 05:27 PM #380Senior Member
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Tie spacing was between 150 and 200 mm throughout with the exception of the ends where the tapers occur and I slowly brought them down to about 100 mm and finally about 50 mm in the final few.
Laurie - away from the sea
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31st October 2017, 11:11 AM #381
I've found ties are where you need them, to draw in wayward staves. Some will have natural curves from internal stresses, so you simply "suck" them in as you tip it up. I just did a neat teardrop mast which had quite a few of these internal stresses to contend with. I saw tham as the stock came off the table saw and would normally have tossed them, just to cut some more, but this stuff was so pretty, I couldn't bring myself to do it, so I "talked" them into the stick anyway.
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8th November 2017, 05:38 PM #382Senior Member
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173 Mast D…
Trimming with the hand plane now complete and up to the big job of sanding – this is being completed by the hand sanding method using a bit of half pipe with the various grits taped on the inside. Oh well, it’s good for the fitness!
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Laurie - away from the sea
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15th November 2017, 03:32 PM #383Member
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Somehow I un-checked the box that notifies me of updates! Fixed that. Work looks perfect here Laurie, thanks for good pics and text as always. Plastic ties particularly useful here as i begin the setup planning for my mast. getting exciting now , close to the finish!!!
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20th November 2017, 05:25 PM #384Senior Member
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174 Mast E…
It continues at a very slow pace – I don’t like sanding but at least I have reached the end of Stage 1 ie. 40 grit sanding is now complete. Just all the finicky work left going down thru the different grits until happy. I have also knocked up the beginnings of the Bolster and associated Boom Hold-Down but will not commit to attachment until the Mast is finished.
Oh, and just by way of explanation re: the dowels. These are a result of my utilising the existing joist I had. It shouldn't be so bad - the intention is to paint up to the Bolster so they should be covered. I do have others towards the top end but also should see paint applied in that space.
P1010621-1.jpg P1010622-1.jpg P1010623-1.jpgLast edited by DavidG; 25th January 2018 at 07:01 PM.
Laurie - away from the sea
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21st November 2017, 01:48 AM #385Member
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very nice Laurie!! Thanks for all your documentation and pictures. They're great!
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19th January 2018, 10:16 AM #386Senior Member
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175 Mast Cont F…
Well, it’s been a very hectic couple of months since my last post. The reason for the lack of correspondence and work on the boat comes down to my retirement from work and any further money earning days!! I decided at age 66 I’ve had enough of the daily grind so I pulled the pin at the end of November. This, of course, was immediately followed by Xmas preparations, Xmas and then holidays down the coast, getting back just this week.
Subsequently, I have much work to do in the garden due to our absence and coming to terms with retirement – golf is back on my weekly agenda after 10 or so years away so my weekly routine will be vastly different! Still attempting to come to terms with sleeping in!
My hold up on the boat is the fact that I need to get it onto the trailer and have been spending some time in prep for that and also ran up against the non-availability of SS staples to hold down the carpet on the skids – one of the vagaries of living so far from the coast.
Anyway, some pics below of the mast head fitting.
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IMG_0442-1.JPG IMG_0443[1].jpgLaurie - away from the sea
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20th January 2018, 07:24 AM #387Member
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Hello Laurie and my congratulations on retirement!! Don't let them tempt you with consulting now... The mast fitting is beautifully done!
I too have plans for trailer readiness to ease the whole thing. I will fit a walkway down the tongue and make a detachable light board as I loathe finding shorts. I will arrange some sort of back up camera by plan to ease the "sit forward, drive backward" that gets tougher and tougher. I MAY add brakes too, we'll see.
Anyway, I hope you keep going and finish out this thread. It's part of the build itself!!!
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20th January 2018, 04:22 PM #388Senior Member
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Many thanks Greg...the trailer requirement is so I can back to finishing the boat. I still have lots to do with fittings, trim bits, yard and boom, varnish the mast et al. Hopefully I can get on with it without being waylaid into the garden!!
Cheers
LaurieLaurie - away from the sea
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23rd January 2018, 03:27 AM #389Member
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Thousands of details! You have to build one to understand! When you take as much care as you can; it takes a long while!!!
Can you tell me how you plan to secure the mast head fitting to the mast please? A pin, epoxy?
Best to you Laurie and thanks as always...
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26th January 2018, 10:23 PM #390Senior Member
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Hi Greg...simple answer is sand both the mast head and fitting with coarse grit and epoxy on. All stresses are down do I don’t see a need for much more. Even trailering it should be OK.
Cheers
LaurieLaurie - away from the sea