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Thread: HSC Help
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1st February 2013, 08:32 AM #16SENIOR MEMBER
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Hi Bryce.
Here is another suggestion for the timber, Pine!
That way, design and execution, can be centre stage on the finished product. Additionally, your timber budget will be better able to cope with the inevitable reworks - we all go wrong somewhere along the line .
The biggest bonus, of course, will be that your parents who will be proud of your efforts even if you make the clock in plain chipboard may appreciate the reduced strain on the family budget!
Philip.
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1st February 2013 08:32 AM # ADSGoogle Adsense Advertisement
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1st February 2013, 09:39 AM #17GOLD MEMBER
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- Jun 2003
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- Sunbury, Vic
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Our sponsor has shellac products and information sheets also "The Polishers Handbook" is worthwhile. Woodworking Australia - Home Page
Tom
"It's good enough" is low aim
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1st February 2013, 09:46 AM #18Senior Member
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- Mar 2007
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- Picton, NSW
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Bryce,
Try this Shellac tutorials .
I bought some shellac recently at Bunnings. You can check their prices on line. Search - Bunnings Warehouse
All the best.
Walesey.
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28th March 2013, 07:02 PM #19New Member
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- Nov 2012
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- Sydney
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- 7
Bending
Hello again, i ended up goin with Australian Rosewood, however i want to steam bend some drawer fronts, i seem to be having some difficulty, the pieces i want to bed are 19mm thick, 400mm long and 250mm wide, is this to large to bend or do i need to just leave it in the steam box for ages?
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28th March 2013, 07:46 PM #20Senior Member
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- Oct 2008
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- sydney
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Hi Bryce, I am of the opinion that the only timber that lends itself to steam bending is beach. I had a student job done while at another school in the shape of a big eye. Dons stem bending was the only place in Sydney that did any steam bending. What radius bed are you trying to achieve? I know that at Uni when I did a bend of radius 250mm with a 10mm squared piece of rosewood it took several attempts and a straight grain to achieve a satisfactory result. How are you bending the timber? and how long are you leaving it in the box for?
Dean.
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28th March 2013, 08:00 PM #21
One thing I remember from soverign hill demo's.
The guy making wooden wheels for carts that get bent onto a frame.
Its 1 Hr for each inch of thickness at 100 degrees C.
So if its 25mm thick then it needs 1hr in a good hot steamer, not one that leaks badly.
The other thing I remember is nice straight grained timber gives you less troubles.
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28th March 2013, 09:20 PM #22
Hi Bryce
are those dimensions the finished size or the piece you will cut to size after bending?
the general guideline is that the piece to be bent should be about 100mm longer than the finished dimension
air dried wood usually steam bends more easily than kiln dried,
pre soaking in clean water for a few hours can help soften the wood prior to steaming and bending
sanding the faces before bending can make finishing easier
are you using a steel strap or a male and female former?
how much wood do you have to practice on?
Oh, and I think it's time you posted a few photosregards from Alberta, Canada
ian
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28th March 2013, 10:04 PM #23New Member
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- Nov 2012
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- Sydney
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im using two steel straps (bend steel rules) and a male former that i just broke so ill have to fix it, but ill try soaking it
It is about 100 mm longer, basically its a really shallow curve with wings on the end of it, but at the moment the timber isnt even getting around the curve
Ive stuffed myself up a bit coz i thought i could get veneered particle board for some timber that i needed cheaper than for solid stock it ended up being heaps expensive so ive ordered some more solid stock timber, this all means that im really quite behind on my project so there isnt much to show at the moment, as soon as i start building the base tho i will start putting photos up
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29th March 2013, 12:06 AM #24
Hi Bryce
without seeing a diagram I'm a bit in the dark, but I don't think two steel rules will provide enough force to bend a 250mm wide by 19mm thick board
Normally the steel strap is the same (or nearly the same) width as the board being bent.
the male former needs to be extra strong to withstand the forces you will apply to it.
As a guess, bending your drawer fronts will take the effort of 4 people, with a 5th standing by to apply the clamps.
Have you considered using bent laminations for the curve? You would need to cut about 7, 350mm long x 270mm wide x 2.8mm thick strips if you go down this routeregards from Alberta, Canada
ian
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29th March 2013, 12:35 AM #25Senior Member
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- Oct 2008
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- sydney
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Bryce I like the lamination idea....I cant say that rosewood will lend itself to bending easily. Either way you need to have well constructed molds to shape your timber. What has your teacher offered in advice?
Dean.