锤头角度的实用性与人体工学问题

原话 · @Anonymous

The argument for head angle sounds good, but in practice it doesn't matter. An awful darn lot of houses were framed with hammers that have the head perpendicular to the handle. If it were essential, they'd have started making hammers with angled heads sometime in the last 3,000 years. Source: am a furniture maker, professionally. I've switched from using a joiner's mallet to a lump hammer, so I have experience with both. The lump hammer faces are perpendicular to the handle, not angled in the slightest. Better lump hammers have slightly domed faces, so if you're walloping a piece together and don't have time to grab a block to protect it (time moves faster once the glue is on), you're less likely to leave a bruise from the edge of the face if you don't hit it with the face of the hammer

原话 · @Anonymous

I've always gotten so little done in wood working because I love making tools more than furniture. This was great. It's a good example of how unintuitive but important knowledge is everywhere in tool-use and design, too. I'd never seen this approach to creating mallet head angles, and when I've done it in the past, I literally eyeballed it. Whoops. Maybe that's why I don't use the mallet so often.

原话 · @Anonymous

This seems to assume that the segment between the pivot point (wrist or elbow) and the butt of the chisel must form a 90° angle with the chisel's shaft. Not being a woodworker – can't one simply move the wrist or elbow slightly higher (thus forming an obtuse angle) to compensate for the depth of the head to ensure that even with a flat mallet head strikes perpendicularly? So mallet head angle becomes purely an ergonomic adjustment to allow better arm placement.