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Thread: Bench Sander Blade Grinder
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6th September 2007, 09:21 AM #136
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Aha - yes we can, Derek! I prefer an 8"!!
Originally Posted by derekcohen
Ian, we cannot even disagree on this one since I use a 6" grinder as much, if not more, than the belt sander.
Derek
I did use a 6" for a very long time, but the hollow you get on things like turning tools is a bit savage, when you need long bevels. After wanting one for a long time, I got the 8" a couple of years ago - went for the 1450 RPM version. I don't think it makes a huge difference to its effectiveness, but an 8" wheel is quite a bit larger than a 6" in terms of bulk, and having it whizzing around in close proximity to my face at 1/2 speed is somehow more comforting.
Besides, I'm not usually needing to remove more than a Kg or two of metal at most sharpening sessions ( ).
Cheers,IW
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6th September 2007, 08:55 PM #137
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Hi Ian
And I am thinking of getting the new Triton wet grinder, which is also 8" I think. The advantage of the bigger wheel is a shallower hollow. The advantage of a wet grinder is that I could grind to the very edge of the blade. The Triton (Sheppach) speed is 120 rpm, which is faster than that of the large Tormek (90 rpm).
Regards from Perth
DerekVisit www.inthewoodshop.com for tutorials on constructing handtools, handtool reviews, and my trials and tribulations with furniture builds.
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6th September 2007, 10:18 PM #138
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Derek - a friend of mine bought a Tormek (are we allowed to mention names when being critical???) a few years ago, and I've had a go at it a couple of times. I guess it does have one thing in its favour - you simply cannot burn metal with it, no matter how hard you try! But I did find two features frustrating to the point of annoyance:
1. It's painfully slow. For those of us used to ripping off metal & getting back to whatever it was we were doing in a minute or less, it seems to take 10 times longer. Taking out a nick took an unseemly time (though better than doing it manually on a coarse oilstone!)
2. The guide bar can best be described as pathetic - way too much deflection at the least pressure for mine. On my first try, I managed to grind a lovely skewed bevel. Unfortunately, it was the blade for a regular bench plane.
Still, there are a lot of satisfied customers out there, to judge by the posts that pop up here every time the subject is raised. Maybe the Sheppach/Triton addresses these problems to some extent (?)
I admit that occasionally I cook the extreme edge of thinner blades a bit, even on a well-dressed white stone, and using a light touch. It's always when I'm hurrying, (which is something we should never be doing, I know - why are we in the shed, anyway?), but well, sometimes it just happens...... Since most of my plane blades are HSS these days, it really doesn't matter that much, as they are much more resistant to tempering. (But before anyone gets the idea I'm a heavy-fisted klutz on the grinder, I do take great care, & dress the stone regularly, keep testing the temperature on my hand, etc.) By and large, I get the results I need with minimum fuss, but if I were starting from scratch, I would probably go the all-wet route, water stones and all, but as I've said before, after close to 50 years, I'm a bit welded on to oilstones & high-speed metal-eaters....
This has all been said before, of course - so many times.
Avagoodnight,IW
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