Hey again everybody, sorry I've been blowing up the forum lately. I've been playing with my lathe much more.
Anyways, I had a "catch from hell" this week with a 1" skew. The chisel started skating back toward me and as I pulled it away I hear a loud "CLINK" from the tool rest. I looked over myself and found a deep puncture wound on my left pinky, right beside a joint. What was strange is that it didn't bleed at all. I've had smaller cuts from carving tools that bled like crazy.
So, damage done, I looked into why it happened. I sharpened the skew using a Veritas skew registration honing jig on a Trend diamond plate and some Shapton stones, then stropped it a bit (goin' all out with Christmas gifts!). After using it for some time and doing lots of peeling cuts, I touched it up, free hand, on my bench sander with 1000 grit. I notice now that if I lay the chisel on a piece of wood between centers, the skew can't cut the piece unless the bevel heel is raised away from it... I'm pretty sure I messed it up free-handing it on the belt sander. Haven't had catches or problems before.
I found an article
online explaining the same thing:
"When you hone, be careful to keep the bevel flat against the stone to avoid producing a convex curve right at the cutting edge. This rounding of the edge has a big effect.
With a rounded edge, the tool will not cut when the bevel is flat on the wood, or nearly so, because the actual edge is above the surface. To get it to cut, you have to rotate the tool more than normal, which brings the heel of the bevel well off the surface. This makes the tool harder to control and will likely give a much rougher cut. Further, because of the extra rotation, a runback is much more likely to occur."
I'm pretty certain this is the case. Anyways, are there any "training wheel" type of skews that lessen the chances of catches? Maybe a different grind when using a skew predominantly for planing cuts?
I'm also looking into chainmail gloves, lol.