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30th March 2017, 01:38 PM
Thread: Paulownia/cedar fishing ski
by Sumbloak- Replies
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Looks good. Got a few questions for you. How...
Looks good. Got a few questions for you.
How thick are the strips?
What is the mould spacing?
What weight of glass are you using?
Also, I notice you have more or less elliptical moulds. Are... -
20th November 2016, 08:08 AM
Thread: Advice: Screw drive type
by Sumbloak- Replies
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IME square drives are easy enough to clean out....
IME square drives are easy enough to clean out. Easier than Phillips or Pozi. You can clean out either of the latter, but they're more vulnerable to small pieces of crud left behind. Square drives...
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18th September 2016, 10:59 AM
Thread: Another GIS in Poland
by Sumbloak- Replies
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Nice job. That colour really suits it. As does...
Nice job. That colour really suits it. As does the name.
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18th September 2016, 10:56 AM
Thread: Dinghy timber
by Sumbloak- Replies
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Balsa is also a hardwood. In botanical terms, as...
Balsa is also a hardwood. In botanical terms, as far as trees go, softwoods are conifers. Hardwoods are everything else. Or if you want to get techy, gymnosperms and angiospserms. Impress your...
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18th September 2016, 10:52 AM
Thread: Dinghy timber
by Sumbloak- Replies
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You can still steam bend kiln-dried timber. It...
You can still steam bend kiln-dried timber. It just may, or may not, be less flexible. Only way to find out is try a bit and see if it does what you want. It if doesn't, use thinner strips.
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22nd July 2016, 10:40 AM
Thread: Steam bending Oz timbers
by Sumbloak- Replies
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I don't know of any sources down your way. It...
I don't know of any sources down your way. It only grows on the north coast of NSW, and up into Qld. Denman Marine might know. They have done a fair amount of steam bending in their time. Or you...
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20th July 2016, 08:55 PM
Thread: Steam bending Oz timbers
by Sumbloak- Replies
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Silver ash (Flindersia schottiana, or F....
Silver ash (Flindersia schottiana, or F. bourjotiana) is supposed to be one of the best native timbers for bending. You can get it from sustainable sources if you look around.
No doubt there are... -
20th July 2016, 06:27 PM
Thread: Steam bending Oz timbers
by Sumbloak- Replies
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I've steam bent kiln-dried Surian cedar, just to...
I've steam bent kiln-dried Surian cedar, just to throw a spanner in your theory. :D Apparently straight-grained radiata (yup, bloody radiata) is pretty good too, although I haven't tried it.
... -
15th June 2016, 09:26 AM
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The green parrots are most likely rainbow...
The green parrots are most likely rainbow lorikeets. ;)
I think you have this list backwards. Take her out for a spin in a lightish breeze. See what works and what doesn't.
It's a very clever... -
30th April 2016, 01:30 PM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
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By the way, I have had a chance to row the boat a...
By the way, I have had a chance to row the boat a fair bit under a range of conditions. The general behaviour is pretty good, but not quite as good as I would like. I'm already considering...
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30th April 2016, 01:14 PM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
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- 31,930
I should have thought of that. :rolleyes: I...
I should have thought of that. :rolleyes: I already had a perfectly good garden hose. Thanks for the tip.
And for Mike1: I still haven't done any racing as such. Yes, I know. Slack. -
20th April 2016, 08:48 AM
Thread: Strip built kayak - Bead and cove
by Sumbloak- Replies
- 15
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- 5,417
Ok, but is this really a problem? You only need...
Ok, but is this really a problem? You only need enough of a radius to make the planks sit without gaps, and they aren't going to be at 45 degrees to each other. Probably only a few degrees over most...
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My goodness. 8 years and still going. I admire...
My goodness. 8 years and still going. I admire your dedication. The boat will be great when it's done.
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14th April 2016, 11:21 AM
Thread: Geodesic SOF - waterproof options?
by Sumbloak- Replies
- 6
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- 3,519
Beautiful picture there. Nice job on the boat.
Beautiful picture there. Nice job on the boat.
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14th April 2016, 11:02 AM
Thread: Strip built kayak - Bead and cove
by Sumbloak- Replies
- 15
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- 5,417
I like the motto at the bottom of that linked...
I like the motto at the bottom of that linked page: "May you always be able to count to ten on your fingers."
I suppose it should add "without re-using any fingers". :D
Anyway, I like the idea... -
27th February 2016, 02:22 PM
Thread: Coastal rowing boat
by Sumbloak- Replies
- 10
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- 7,854
Something similar, from Tasmania. Row & Sail...
Something similar, from Tasmania.
Row & Sail – Derwent Skiff -
31st January 2016, 12:33 PM
Thread: Non rotting alternative to treated pine
by Sumbloak- Replies
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- 1,474
Fair enough.
Fair enough.
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31st January 2016, 07:41 AM
Thread: Non rotting alternative to treated pine
by Sumbloak- Replies
- 11
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- 1,474
While I take your general point here, resistance...
While I take your general point here, resistance to termites and borers can be an exception. The main reason turpentine is so resistant is that it is chock full of silica, which literally blunts...
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19th January 2016, 06:51 PM
Thread: Gluing Tallow wood
by Sumbloak- Replies
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- 2,030
I've only glued tallow once. It was for gunwales...
I've only glued tallow once. It was for gunwales for a rowboat, approximately 20x20 mm. Each gunwale had one scarf joint to make the required length. After reading and listening to all available...
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23rd December 2014, 11:11 AM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
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- 31,930
Ok, so perfect conditions today. No breeze to...
Ok, so perfect conditions today. No breeze to speak of, and my hat was quite happy staying on top of my head. Time was down to 17m 40s, and average speed up to 4.9 knots (5.6 mph). I'm happy about...
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22nd December 2014, 07:36 PM
Thread: Moreton Bay GIS
by Sumbloak- Replies
- 98
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- 67,781
Looks like it'll work.
Looks like it'll work.
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21st December 2014, 08:01 PM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
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- 31,930
Here you go: 3 hours 12 minutes...
Here you go: 3 hours 12 minutes. Exactly 17 nautical miles for the Blackburn, so average speed was 5.3 knots.
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21st December 2014, 07:49 PM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
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- 31,930
No, the latest Blackburn times are a lot faster...
No, the latest Blackburn times are a lot faster than that. Close to 3 hours, from memory. Average speed around 5.5 knots. I know this because Clint and I and several others were discussing that race...
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21st December 2014, 08:37 AM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
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- 31,930
Well even with steroids and no ice cream, this...
Well even with steroids and no ice cream, this boat isn't going to be anywhere near as fast as a scull. Also, by scull standards I'd be "lightweight masters" on a good day, not "mid-twenties...
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20th December 2014, 05:06 PM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
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- 31,930
Ok, so I was fed up with my butt getting sore...
Ok, so I was fed up with my butt getting sore while rowing. I could have made a nifty laminated contoured seat like a trad wooden sculling seat, or I could have done several other things, but frankly...
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19th December 2014, 03:00 PM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
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- 31,930
Oh yeah, here's a couple of funny things I saw...
Oh yeah, here's a couple of funny things I saw the other day. :)
I kinda like the raft. Reminds me of stuff we used to build as kids. Anything to get out on the water. -
19th December 2014, 02:16 PM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
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- 31,930
Well, I have actually made an effort to time some...
Well, I have actually made an effort to time some runs. Only two so far, today and the day before yesterday.
I've worked out a nice training course at the dam. This is a good place for it since... -
18th December 2014, 06:53 PM
Thread: DIY Design and Build Kayak
by Sumbloak- Replies
- 9
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- 3,209
Nice. :2tsup:
Nice. :2tsup:
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18th December 2014, 06:50 PM
Thread: hatchback car topper sail boat - ideas?
by Sumbloak- Replies
- 10
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- 4,021
Dave Gentry's Annabelle. ...
Dave Gentry's Annabelle.
http://gentrycustomboats.com/Annabelle.html -
12th December 2014, 09:12 PM
Thread: Moreton Bay GIS
by Sumbloak- Replies
- 98
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- 67,781
Handy to know (about Plymaster) if I ever want...
Handy to know (about Plymaster) if I ever want some top notch gaboon. :2tsup:
6 mm hoop is supposed to be about 10 kg for a 2400 sheet, but I wouldn't be surprised if some sheets run to 11. -
12th December 2014, 08:46 AM
Thread: Moreton Bay GIS
by Sumbloak- Replies
- 98
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- 67,781
The Austral hoop plywood, although of excellent...
The Austral hoop plywood, although of excellent quality, is heavier than gaboon/okoume for the same thickness. Then again, it's a lot stronger and stiffer too.
Where did you get your ply? -
11th December 2014, 04:57 PM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
- Views
- 31,930
I've been out a couple more times now. Yesterday...
I've been out a couple more times now. Yesterday evening I put her in at Mullumbimby to check out the upper reaches of the river, since I'm planning on doing the Mullum to Brunswick Heads run in May...
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9th December 2014, 08:04 AM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
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- 31,930
As I said to a bloke on the beach, there's no...
As I said to a bloke on the beach, there's no point building ugly boats. Takes just as much work, and is not as much fun. :)
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8th December 2014, 12:19 PM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
- Views
- 31,930
Got out for another row this morning. Only three...
Got out for another row this morning. Only three and a half nautical miles this time. I didn't want my backside to be as sore as last time. :D
Anyway, first thing is that I have the on-shore... -
7th December 2014, 12:58 PM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
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- 31,930
Ok, I now have a dolly of sorts. Will see how it...
Ok, I now have a dolly of sorts. Will see how it goes. I don't expect this to be the final version, but it rolls.
Uses the same wheels as the big cradle, which are frankly a bit crappy (I'll get... -
7th December 2014, 06:07 AM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
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- 31,930
I didn't want to have to deal with extra people...
I didn't want to have to deal with extra people at the launching. I just wanted me and the boat, so I could get out on the water (finally) and go for a good row without any distractions. :)
I also... -
5th December 2014, 06:56 PM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
- Views
- 31,930
Got the basic idea sorted for the dolly....
Got the basic idea sorted for the dolly. Obviously it'll be filleted with timber and/or bog where necessary for bonding strength, but the gist of it is as shown in the attached pic. It will just slip...
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5th December 2014, 07:31 AM
Thread: Mutant goat idea.
by Sumbloak- Replies
- 38
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It's more likely the place that thicknessed your...
It's more likely the place that thicknessed your board charges in half hour chunks (ie: $44/hr). This is pretty much standard practice for a lot of businesses. Nobody actually charges 1/12 of an hour...
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4th December 2014, 05:59 PM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
- Views
- 31,930
I've been thinking a bit since the other day. The...
I've been thinking a bit since the other day. The whole launch and retrieval thing worked ok, but was more of a rigmarole that I'd like it to be. If I'm going to use this boat frequently, launch and...
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4th December 2014, 01:32 PM
Thread: Mutant goat idea.
by Sumbloak- Replies
- 38
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- 5,727
I'd just taper them towards the bow, so they...
I'd just taper them towards the bow, so they weren't looking too chunky at the stem.
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4th December 2014, 01:31 PM
Thread: Len Hedges.
by Sumbloak- Replies
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Some religious people can be quite civilised. I'd...
Some religious people can be quite civilised. I'd be inclined to give him the benefit of the doubt for now.
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3rd December 2014, 07:40 AM
Thread: Moreton Bay GIS
by Sumbloak- Replies
- 98
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- 67,781
Try Carbatec. Details here:...
Try Carbatec. Details here: https://www.woodworkforums.com/showthread.php?t=189929&p=1825505#post1825505
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3rd December 2014, 06:11 AM
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Yup. Also called Surian cedar. Same species as...
Yup. Also called Surian cedar. Same species as Australian Red Cedar.
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2nd December 2014, 02:35 PM
Thread: Len Hedges.
by Sumbloak- Replies
- 10
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My 2c is I'd start by trying the bloke in the...
My 2c is I'd start by trying the bloke in the last link. Since he's got the same name and is talking about boats his dad built, I think there's a fair chance he's Len Hedges Jnr. Worth a shot. :)
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2nd December 2014, 01:35 PM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
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- 31,930
Got 'er wet, man. :D Was up at sparrow fart...
Got 'er wet, man. :D
Was up at sparrow fart this morning to catch the high tide and sunrise. Picked the handiest launching spot in Brunswick Heads (Memorial Park beach) then headed up Simpson's... -
1st December 2014, 07:06 PM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
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- 31,930
Today I got to thinking. I'm not currently fit...
Today I got to thinking. I'm not currently fit enough to race the thing, and the races I have in mind aren't for months anyway. That being the case, why do I need a racing quality finish now? It's...
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1st December 2014, 07:58 AM
Thread: Nice rowboat, nothing fancy.
by Sumbloak- Replies
- 232
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- 31,930
Got some final weights this morning, since all...
Got some final weights this morning, since all the paint and oil is now on.
The bare hull is exactly 28 kg (61 lbs 11 0z).
Hull + main thwart + footrest is 30.4 kg (exactly 67 lbs).
Hull +... -
1st December 2014, 05:52 AM
Thread: Mutant goat idea.
by Sumbloak- Replies
- 38
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- 5,727
Oh and I think your structural analysis is a bit...
Oh and I think your structural analysis is a bit simplified.
The thing with glued lap is that although you do get increased stiffness at the laps, this really only applies to longitudinal... -
1st December 2014, 05:18 AM
Thread: Mutant goat idea.
by Sumbloak- Replies
- 38
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- 5,727
Sure, but my thinking is that strippers are...
Sure, but my thinking is that strippers are regularly built as light as glued lap, so there's no need to add an extra 45 kg just because you're using strips. 45 kg is a lot of weight. You could...
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30th November 2014, 05:36 PM
Thread: Moreton Bay GIS
by Sumbloak- Replies
- 98
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- 67,781
Sounds great. Nice find on the cedar too.
Sounds great. Nice find on the cedar too.