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The planes work!

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The planes work!

#1

The planes work!

Kelby

>I picked up a couple of old Baileys at a local tool sale last summer --- a 5-1/2 and a 4. They are OK, but I tend to reach for my Steve Knight specials instead whenever I need a plane.

Well, today I saw a precision-ground granite plate at Woodcraft, and though "what the heck." I brought it home and started flattening the soles of the old Baileys. They needed it! Lengthwise they were okay, but the 5-1/2 was a wee bit concave left-to-right in front of the mouth, and the 4 was convex left-to-right everywhere. The 4 flattened out in about 10-15 minutes, but the 5-1/2 took about half an hour --- there's a lot of metal on there!

I took two minutes to hone the blade and flatten the chipbreaker on each, and omigosh! They work!

I wasted half a board of birdseye maple just to watch the fluffy shavings come off.

Which leads me to a quick question about sharpening plane blades. How much of an arch do you put on the blade of your jacks and smoothers (so the end doesn't dig in)? I only put about 1/64" of an arch on the smoother blade, but I think maybe I need a little more. I put about 1/32" on the 5-1/2, but I think I may need a little more there too.

I'm always surprised at how long it takes me to put a reasonable arch on the blade, and I tend to get impatient.

Thanks for listening,

Kelby.

Re: The planes work!

#2

Re: The planes work!

Warren in PA

>I think you should determine the amount of curvature by the feedback you get in use. For the smoother you want enough curve to avoid the corners digging at moderately thin shaving, but flat enough so you get a resonable width for see-through shavings. Likewise with the jack, see how it performs over the range of shavings you actually use. If you have another plane (such as trying or jointer) to use between jack and smooth, the jack iron can be quite curved. If you move directly from jack to smoother, you'll want the jack somewhat flatter.

My gut feeling is that you have too much curve on the smooth iron, perhaps not enough on the jack.

Re: The planes work!

#3

Re: The planes work!

Kelby

>Thanks, Warren. I'll try adjusting the arch.

Re: The planes work!

#4

What I do...

Scott Burr in Ben Lomond CA

>All my smoothers get a 1/8" radii on the corners and are sharpened flat across the blade. For jacks the blade is sharpened on a 1/32 or so arch.

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