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Posted on Lathe Chisel Sharpening ANGLES and/or BEVELS PER TOOL

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rum

148 posts in 1243 days


#1 posted 01-14-2013 09:47 PM

Actually I’d take Davids statement about them being the same angle as regular chisels, etc.. a step further.

I found (and continue to find) it really useful to try my lathe tools out at the bench and/or with the lathe turned off for a few test cuts. Doing that taught me more about how the tool should approach the wood and what angle was good for grinding, etc.. than any of a dozen videos. Basically try taking shavings off of a piece of wood with whatever tool your using. When you can get nice clean shavings from a 2×4 on the bench then transfer that to a piece with the lathe off you’ll have a pretty good idea of where the tool should be in relation to the work for a given grind/part/whatever.

Now I’m not talking down the sharpening videos, both the oneway and thompson ones John pointed out were very useful as well, I’d also add the D-way videos to that list: http://www.youtube.com/channel/UC8jsr2OBog-RwMjbNvYJ8Lg?feature=watch
the last couple there especially are applicable to any grinding wheel, my bowl gouges got a whole lot better after watching that.

I would disagree that scrapers should only be used for trimming/nasty grain (granted they do excel there), check out these two videos from Reed Grey (aka Robo Hippy) and I think you’ll change your mind at least a little :D: Turning with scrapers: http://www.youtube.com/watch?v=hKdqiAc0jx4 Sharpening scrapers: http://www.youtube.com/watch?v=UQ7w6yFhw4c
They can be really flexible and useful tools. They are especially useful (imho) for getting into complicated angles and are somewhat more forgiving than a gouge for a lot of operation (especially when used with a bit of a negative – downward facing) angle).

The skew is indeed subtle but well worth the time, there are dozens of ways to adjust the details on how its sharpened so take some time on a cheap skew to try a few and see what works for you. Its worth spending a fair bit of time with any one grind before switching so you have gotten over the “its all new” part and settled down to use the tool.


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