Reply by lwllms

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Posted on Bevel Up vs. Bevel Down - Why buy a bevel down plane anymore?

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555 posts in 3366 days

#1 posted 10-11-2010 03:09 AM

I have a conflict of interest here. We do make and sell traditional jack planes. I suppose all irons could be disposable if you don’t care about cost.

One thing is that a jack plane is traditionally used as a roughing plane. Using a bevel-up jack is difficult, at best, for use as a roughing plane because it requires a significantly greater amount of curvature to the edge to get an identical cambered profile presented to the wood. Also the spring back of the wood fibers will serve to limit the depth of cut.

One of the real issues for me is that all this nonsense is further obscuring the rolls of hand planes. If every plane, to you, is a smooth plane perhaps you should give a bevel-up plane a shot and just deal with accelerated edge wear and greatly increased sharpening issues. But then, if all planes are smooth planes in your world, you’re missing out on about 99% of the capability of hand planes.

BTW, the instructions above for putting a back bevel on the iron, as shown earlier in this thread, only serves to make the clearance angle problems worse. When I’m talking to customers or out conducting workshops almost all the sharpening problems I see originate on the flat face of the irons. Dubbing, rounding of the edge on the flat face, is something to be avoided regardless of whether that dubbing is accidental or intentional. Back bevels like the one illustrated are a perfect example of intentional dubbing.

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