Hand Tools

Subject:
I have never looked closely at...

David Weaver
I've never looked closely at what's going on before, but this is exactly what I'm looking for.

These are the two chisels used in the video, but I had to refresh the facet on the flat bevel chisel to make sure it wasn't damaged at all, and I've since used the unicorn chisel to mortise a rosewood plane body, and thus refreshed it just as I would've otherwise.

Our guesses about length seem to be confirmed - the buffed bevel appears to remove about 2 thousandths of edge length and what's left behind is not particularly blunt anywhere, but if there is an area of a lot of steepness, it's only at the very edge (thus, it moves through beech easier than the flat bevel in the video)

these pictures are at the same magnification as the damage pictures posted elsewhere on here.

It's fairly easy to see why the modified edge is more desirable than the amount of damage shown. That was the damage for what would've been equivalent to chopping a couple of half blinds out. The unicorn edge showed no damage (and interestingly, no wear marks - though wear may have been just at the very edge because there's nothing to hold the back of the chisel that tight against a leaf of wood shearing off of the end of a board).

Messages In This Thread

Sharpening and buffing progression pictures *PIC*
Re: Sharpening and buffing progression pictures
Re: Sharpening and buffing progression pictures
Re: Sharpening and buffing progression pictures
Re: Sharpening and buffing progression pictures
Suzuki Tool 4000
eek...expensive..
judging scratches
Re: Sharpening and buffing progression pictures
Thinking about establishing the Unicorn profile
Amen, Reverend
Re: Amen, Reverend
for testing plane blade durability..
Tormek
Clarification, please
Re: Clarification, please
Re: Clarification, please
Re: Clarification, please
Re: Clarification, please
Preparing a beading blade
Re: Preparing a beading blade
if the tormek had a higher speed leather wheel...
David & Winston
Re: David & Winston
Buffing wheel vs hard felt
Re: Buffing wheel vs hard felt
Re: Buffing wheel vs hard felt
Scratches from various compounds *PIC*
these results will require some study
The white stuff is...
Re: The white stuff is...
various compounds - difficult to judge
Re: various compounds - difficult to judge
Thank you for experimenting
looking forward to...
Further Observations
great work
Interesting..
Re: Interesting..
not sure I agree
Re: not sure I agree
Re: not sure I agree
Re: not sure I agree
I remember reading this...
Re: not sure I agree
Re: not sure I agree
Factory ground *PIC*
Re: Factory ground
Re: Factory ground 1816 *PIC*
Re: Factory ground 1816
Re: Factory ground 1816 *PIC*
Re: Factory ground 1816
blogger grind
Re: blogger grind *PIC*
you're still failing...
after you do your survey, you'll find
Marples catalog...
Some other things to try
I am anxious to try your suggestion *NM*
Re: Some other things to try
Re: Some other things to try
Re: Some other things to try
Scratches from more compounds; buff vs stick *PIC*
Re: Scratches from more compounds; buff vs stick
wait till you try...
great experiments
Re: great experiments *PIC*
Other Compounds
Re: Other Compounds *PIC*
Well! good work
partly my fault for voluminous posts..
Wooden planes
Re: Wooden planes
Re: Wooden planes
Re: Wooden planes
Re: Wooden planes
Re: Wooden planes
Thanks, Jon!!
Re: Wooden planes—Steve Voigt link *LINK*
hardness of iron oxide
Re: hardness of iron oxide
Google monster says
Red stuff
File in useless knowledge
Re: Other Compounds - reinventing the wheel...
will do...
Correction
Calcined alumina *PIC*
sounds like gunpowder...
Profile pictures *PIC*
Capturing the Unicorn Profile
Re: Capturing the Unicorn Profile
but, do I need to?
Outstanding work, Winston! *NM*
Re: Capturing the Unicorn Profile
Angle near the edge *PIC*
Re: Angle near the edge
Re: Angle near the edge
Re: Angle near the edge
This is a difficult thing to do precisely
Thoughts on the data
Re: Thoughts on the data
Scale of Image
Comparative Profile Pictures
I have never looked closely at...
Re: Comparative Profile Pictures
Re: Comparative Profile Pictures
Separate on the IH sorby chisels..
If the UK guys are correct...
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