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5th June 2019, 09:58 PM #16GOLD MEMBER
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- Mar 2018
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Check the address on the front page - very local...
"by amazon" is just a way of offering thru Amazon fulfilment - another delivery mechanism. Typically this means the seller ships a bunch of stock to an Amazon fulfilment centre and orders can be processed thru Amazon. But if you just click the top menu item for the item you want, you can add stuff to the "native" cart on the site.
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5th June 2019 09:58 PM # ADSGoogle Adsense Advertisement
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5th June 2019, 10:07 PM #17SENIOR MEMBER
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- Nov 2010
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- Perth W.A
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- 720
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5th June 2019, 10:46 PM #18GOLD MEMBER
- Join Date
- May 2011
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- Albury
- Posts
- 3,028
And you can sharpen them once or twice on a diamond stone, although from what Derek says, as a hobbyist, you'd have to live a long time to make this necessary.
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13th August 2019, 02:49 PM #19Member
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- Mar 2017
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- Canberra, ACT, Australia
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- 39
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- 92
Strongly suggest Combined Saw & Knife. $55 for a box of 10 at those dimensions.
Solid Tungsten Carbide TOK | Combined Saw and Knife
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13th August 2019, 06:49 PM #20Taking a break
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- Aug 2008
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- Melbourne
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- 34
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- 6,127
Ouch that's expensive! SJE are $39 for 10
They also don't seem to have the radiused edge required...
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13th August 2019, 11:06 PM #21Member
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- Mar 2017
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- Canberra, ACT, Australia
- Age
- 39
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- 92
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13th August 2019, 11:18 PM #22Taking a break
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- Aug 2008
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- Melbourne
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- 34
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- 6,127
SJE is an Australian company
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14th August 2019, 12:00 AM #23GOLD MEMBER
- Join Date
- Apr 2014
- Location
- Kew, Vic
- Posts
- 1,071
+1 for SJE Tools. I’ve done business with Steve a couple of times for replacement carbide heads for the CT330. Great quality - made all the difference.
Brian
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14th August 2019, 06:06 PM #24Member
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- Mar 2017
- Location
- Canberra, ACT, Australia
- Age
- 39
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- 92
An Australian company that sells through Amazon and ships to Australia? Like a broker?
#2legit2quit
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14th August 2019, 06:28 PM #25Taking a break
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- Aug 2008
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- Melbourne
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- 34
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- 6,127
Selling through Amazon means nothing, he certainly wasn't selling through there when I first bought from him. Believe what you want, there's plenty of us here who are happy to support him
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14th August 2019, 06:51 PM #26GOLD MEMBER
- Join Date
- May 2011
- Location
- Albury
- Posts
- 3,028
The reason he sells through Amazon is because he has found it to be the easiest/cheapest way to access the American market. He also sells specialised router bits for guitar fret boards and neck profiles, they're made by Carbitool. He's Australian and based in Australia. If you have a look at his website - SJE-Tool - you'll see that his postal address is a PO box at Oxley in Brisbane. Maybe he flies from the US to collect his mail, but the last time I spoke with him he was in Australia.
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14th August 2019, 07:50 PM #27
Another plus 1, I got them for the Byrd Shelix Cutterhead in my Dewalt DW735
https://www.woodworkforums.com/members/27755-sje-tools
SJE-Tool
Steve gives, Great service, great price, great product
[email protected]
cheers crowie
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14th August 2019, 08:37 PM #28Member
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- Aug 2008
- Location
- Brisbane
- Posts
- 89
Thanks all for the kind words! 🙂
I am certainly still around! Just to confirm yes I am local in Australia.
As has been mentioned in I use Amazon as it’s convenient for the US customers (there is a lot of guitar builders over stateside!) and the guitar fretboard radius router bits were my original product (amazingly way back in 2006!!!), also I got filling out the customs forms was sooooo time consuming!
Just to clarify one thing though, my router bits are not made by Carbitool. I have now used the same manufacturer for all tools since 2012 - they are based in China.
Cheers all!
Steve
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14th August 2019, 08:52 PM #29Taking a break
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- Aug 2008
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- Melbourne
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- 34
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Couple of points:
1) When you rotate them, you're not doing it because they are unable to cut, you're doing it because the surface finish is no longer acceptable. The inserts are still capable of cutting long after they've lost their nice sharp edge.
2) The wear is on the order of hundredths of a mm; the fresh edges will not be doing significantly more work than the old ones, but they will stick out just that little bit further so they are the ones that determine the surface finish.
Essentially, you're turning the head into a rougher/finisher
It's not so much that the life of the individual inserts is extended, but the life is extended as a set because you can keep using dull inserts past their "use by" while still maintaining a good surface.
I've got access to a nice inspection room at my new job, I'll see if I can have a measure of a new insert and an old one to find out just how much the dimensions change.
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19th August 2019, 07:32 PM #30Taking a break
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- Aug 2008
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- Melbourne
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- 34
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- 6,127
Inspection results are in and, as I suspected, the wear is about 3/5 of stuff all.
Full disclaimer: I didn't have a new and "dead" insert from the same manufacturer to test, but the differences are that small that it's unlikely to make any meaningful difference. Measurement was done optically with back lighting on one of these: Micro-Vu Precision Measurement Equipment
Nominal width over the 100mm radii is 15mm
A new SJE insert measured 14.996mm
A worn Byrd insert measured 14.977mm (using the every-2nd-row rotation system, with 3-4 months between rotations, in an industrial environment)
So, we're on the order of 10 microns per edge.
Measuring the edge wear radius was a bit tricky because the curved edge made proper focusing impossible, so I worked with the sharpest image I could get. I had to crank the magnification up to over 800x just to have enough space on the screen to place 3 points for a circle (that should give you an idea of how small we're talking), which came out at 7 microns radius.
I know the radius and the linear measurements don't add up when you draw it in CAD, but that could be due to variation in the original size of the used insert from the nominal size, the inability of the optics to focus or a combination of both.
Assuming the larger number of 10 microns per edge (~13 micron radius) of wear, on a 2" diameter cutterhead (the standard "lunchbox" benchtop thicknesser), with 5 degrees of back clearance, you're looking at about 8 microns difference in cutter projection. Moving up to a 120mm head on industrial machines, that number drops to under 5 microns.
For scale, I just went and measured a single ply of 3-ply toilet paper and that's about 60 microns thick.
So, no, I don't believe new edges stick out far enough to do more work than old ones and, yes, I'm sure.
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