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18th January 2007, 07:44 PM #1Senior Member
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"Professional" Thicknesser Blade Sharpening
Evening all,
Just got my 12.5" double sided blades back from their first professional sharpening. They were brand new, got blunt, and sent out ie: I haven't touched them with a hone or anything else. There were no nail shaped gouges either, just blunt after attacking ironbark.
I am expecting too much to have them come back still being symmetrical??
They were 319mm x 18.2mm x 3.2mm when they left here last Monday, and arrived back today looking a bit off with naked eye.
Out came the digital calipers, and the first blade was 17.95mm at one end, 16.72mm in the middle, and 18.04mm at the other end. The other blade was 17.44mm end, 16.83 middle, and 17.65 other end.
You can see the concavbe shape of the blade with the naked eye.
Yes, they are the same new set that I sent because they are engraved with my name.
Surely professional sharpening should give better results than that, or am I expecting too much??
They were done by Qld Saw & Sharpening Service.
Anybody else had a similar problem
Cheers Ned
Edit: I am thinking, Tormek, Scheppach no 3 day waits, do it when you want to, better consistent output-- Dream on
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18th January 2007 07:44 PM # ADSGoogle Adsense Advertisement
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18th January 2007, 07:49 PM #2
A bowed blade is unacceptable. I would not be surprised if the individual blades came back with different widths (especially if they had nicks) but I would demand equal widths on the same blade.
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18th January 2007, 07:56 PM #3
It sounds like whoever clamped them in the sharpner didn't clamp them properly and most likely didn't clean the clamping surfaces when changing the blades
ps all blades should come back equal in size & weight to keep your cutterhead balancedLast edited by DJ’s Timber; 18th January 2007 at 07:58 PM. Reason: add more info
Cheers
DJ
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18th January 2007, 08:16 PM #4Registered
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Id be taking them straight back and telling them that they need to lift their game, buts thats just me.
Al
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18th January 2007, 08:24 PM #5Senior Member
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Oz,
OH YES, they will be getting them back, but I am a bit pi55ed off that I have will have lost so much metal for what should have been one so-called professional sharpen
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18th January 2007, 08:28 PM #6Registered
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18th January 2007, 08:36 PM #7Senior Member
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Well, not so much bent, but ground out of shape width-wise - they aren't exactly a small operation so one would think it in their best interest to just get on with it and grind them properly -- we'll see
Cheers
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18th January 2007, 08:43 PM #8Registered
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By bent I meant the planing face.
Al
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18th January 2007, 08:52 PM #9Senior Member
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Thought so, still fuming a bit, but the sense of humour is returning -
Still not a bad lead up story to SHMBO for a Tormek or Scheppach or the like
Cya,
Ned
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18th January 2007, 09:40 PM #10China
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The person who ground them did not clamp them evenly, or as said previously did not clean the vise face when loading the machine totaly unacceptable, TAKE THEM BACK, don't buy a tormek fro thicknessser blade you will grow old buy the time you have sharpened them
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18th January 2007, 10:02 PM #11Senior Member
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China,
Excuse a dumb question, but why so slow with the Tormek. (Never seen one, let alone use one)
Toggy mentioned in a previous post that he uses a suface grinder from timbercon - is that a quicker way to sharpen than a Tormek??? We are talking 12.5" HSS blades-
never seen a surface grinder either, or used one - so I am relying on experienced advice which is always available thanks to forums like this
Cheers,
Ned
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18th January 2007, 10:11 PM #12China
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iron bark Tormek grinders are a slow reving wet grinder, they are slow to use especialy when taking out nicks from nails etc. the surface or horizontal grinder can take course wheels this will speed the job up, if you saw how course the wheels on a professinal blade grinder sre you woul probably be suprised
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18th January 2007, 10:42 PM #13Senior Member
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Thanks China I'll so some more homework
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18th January 2007, 11:45 PM #14Member
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Hi Iron bark,
I have a Tormek and use it to sharpen my planer/thicknesser blades with. My blades are 350mm long and it doesn't take too long, I have never actually timed it but I get bored pretty quick and haven't been put off the task yet.
I did run a nail through one set, didn't try and grind the nicks out. Just cleaned them up and touched up the cutting edges again then offset the blades back in the cutter block 1 mm each way. Couldn't see the point in removing all of that metal when the length of the blade was perfectly fine.
I have two sets of blades and always have very sharp blades in my planer/thicknesser because of the Tormek. Allof myother tools are also sharp as. I am very happy with the Tormek.
Cheers,
Buz.
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19th January 2007, 09:13 AM #15
It is a slow process but I don’t see anything wrong with that. Maybe it shouldn’t be done in a hurry.
Actually, I am going to sharpen the jointer and thicknesser blades again this weekend. This is the 3rd in 5 months. My jointer and thicknesser blades are always sharp and it feels great.
Now you have paid for 1 set of blades. Does it make it harder if you do end up buying the Tormek?
Also, can you sharpen double sided blades? Aren’t they disposable.Visit my website at www.myFineWoodWork.com
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