grind/file the ricasso?

E

EdgeCraft

Joined
Mar 27, 2009
Messages
122
Can someone give me a link to making the ricassos, or tell/show me how? I'm getting nowhere searching. Thanks.
 
This may be of help...

knife_anatomie.png
 
This is a great question.

Once the profile of a blade has been established, the ricasso of the blade is the first and foremost area to address. Every other part of the knife grows from the ricasso.
Establish the ricasso first. Both the profile and the thickness should be established before one moves on to the tang or plunge cuts.
The ricasso is the thickest area of the blade, every other area is thinner than the thickness at the ricasso. The tang is thinner and the blade forward of the shoulders is also thinner. Always start at the thickest part of a blade.
If you have the area at the ricasso miced and finished to 400 before you move on to the next step you will avoid many headaches as you progress.

There is note, above my bench that reads "Its the ricasso stupid":D

Fred
 
Thanks for the advice Fred. I assume that since I'm creating a folder and the tang is flat and is the thickness of the blank steel from which the rest of the blade is cut, it has to be thicknessed properly first.
Jason, I hunted for a picture so I would be describing the correct portion of the blade, and I realize from your picture that I guess I am asking about the PLUNGE CUT. I'd like to know how to do one like in the picture, but also one that has a definite 90 degree edge to it tapering to nothing, like you might see with a flat ground blade. How do you get the 90 degree stair step leading to the flat of the recisso?
 
The plunge is formed by the edge of the belt. You grind them in, but some people have difficulty grinding even plunges and instead file the plunges in with a chainsaw file or small file, then grind the rest of the blade so that the grind ends at the bottom of the filed plunge, if that makes sense.

The curved plunges are done by feathering the blade into the belt rather than the blade being pushed in flat. There are other techniques people use, as well, for curved grinds, like curved platens on their machines.

Grinding a plunge is easy. Grinding two plunges that meet symmetrically at the blade edge and are mirror image of each other in terms of how they flow into blade is the tough part.
 
The easiest way for a new guy to start with, is to file them in with the "Green Pete Method"

Watch the video's, they will explain the processes very simply and thouroughly enough for a beginner.


Jason
 
David Schott said:
The plunge is formed by the edge of the belt. You grind them in, but some people have difficulty grinding even plunges and instead file the plunges in with a chainsaw file or small file, then grind the rest of the blade so that the grind ends at the bottom of the filed plunge, if that makes sense.

The curved plunges are done by feathering the blade into the belt rather than the blade being pushed in flat. There are other techniques people use, as well, for curved grinds, like curved platens on their machines.

Grinding a plunge is easy. Grinding two plunges that meet symmetrically at the blade edge and are mirror image of each other in terms of how they flow into blade is the tough part.
Click to expand...

thanks. Just what I wanted to know.
 
By the way. The pictures with nomenclature ought to go on the "new guy" postings page, as well as the website with definitions posted above.
 
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