Re: advancing hand plane blade to keep shaving wood

[P van Rijckevorsel]

Alan W schreef

I find I get 3-4 good minutes of shavings at a stroke every 5-8

seconds, and then I need to advance the blade just a fraction to keep shaving.

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I pulled the blade tonight and it will no longer shave arm hairs.

Definitely has dulled, but I will try again after I rehone the blade and when I advance it the second time I will remove the blade to test again.

• + + Yes, many hard woods (not "hardwoods") will dull an edge fairly quickly. Try wengé or panga panga and you will express stand time not in minutes, but in strokes.

Advancing a blade will work because a plane will work reasonably well with even a somewhat dull edge. PvR

[P van Rijckevorsel]

Frank Shute schreef

• + + I suggest you look at your shavings. These will look different, too. PvR

[P van Rijckevorsel]

Patrick Olguin schreef

as you're using purpleheart. This wood is not only hard, it's full of silica [...]

• + + Nope. It isn't. Not resistant to teredo either. PvR

[Charlie Self]

PVR states:

According to William Lincoln, it exudes a gummy residue if heated by dull tools. Might be messy. I've always made sure tools for purpleheart are especially sharp. While teredo (shipworm) is not a particular problem outside oceans (docks, ships, boats, similar structures), powder post beetle can chew up the sapwood.

Charlie Self "The function of posterity is to look after itself." Dylan Thomas

[P van Rijckevorsel]

as you're using purpleheart. This wood is not only hard, it's full of silica [...]

Charlie Self schreef

tools. Might be messy.

• + + That is possible, but only if the relevant tree was damaged during its life. It is not the rule.

• + +

especially sharp. While teredo (shipworm) is not a particular problem outside oceans (docks, ships, boats, similar structures), powder post beetle can chew up the sapwood.

• + +

Sapwood is never resistant to anything, no matter what wood you are talking about ... PvR