Grinding a chirra

Forgedog

Well-Known Member
Ive been working on a kukri design for a while now, for my own use.
They often have chirra or fullers largely to make the blade lighter.

As an experiment I used this mild steel to make a mock up knife.

I LOVE the feel of this blade!

I want 1-2 chirra... In this case you can see where I ground it out.
It makes a different feel in the blade that I prefer.

Ive asked around and most tell me these are ground into the blades with an angle grinder then finished by hand.

As you can see... My attempt at grinding it out was dismal at best.
I thought about using a dremel, or building a piece of equipment just for this purpose, but that seems a tad extreme.

I just pucked up a 40 grit flap sandwr disk for my angle grinder.
Im thinking if I use that rather than the hard grinding disk, mark my lines and drill a couple holes as depth indicators.
I should be able to take it slowly... Then hand sand it to even out any highs and lows from the flap disk...

Can that be done? I can flap disk fairly smooth... Im just not sure the highs and lows can be hand sanded down?
 

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I've seen people grind in fullers on a belt sander, you may want to look into that. The kukri looks pretty cool, good luck
 
Ive been working on a kukri design for a while now, for my own use.
They often have chirra or fullers largely to make the blade lighter.

As an experiment I used this mild steel to make a mock up knife.

I LOVE the feel of this blade!

I want 1-2 chirra... In this case you can see where I ground it out.
It makes a different feel in the blade that I prefer.

Ive asked around and most tell me these are ground into the blades with an angle grinder then finished by hand.

As you can see... My attempt at grinding it out was dismal at best.
I thought about using a dremel, or building a piece of equipment just for this purpose, but that seems a tad extreme.

I just pucked up a 40 grit flap sandwr disk for my angle grinder.
Im thinking if I use that rather than the hard grinding disk, mark my lines and drill a couple holes as depth indicators.
I should be able to take it slowly... Then hand sand it to even out any highs and lows from the flap disk...

Can that be done? I can flap disk fairly smooth... Im just not sure the highs and lows can be hand sanded down?
google "fuller making tools"
 
The tool I was considering is essentially a belt sander.
Im still a bit in the air about that one.

I was under the impression with a fullering tool you still have to somehow hand sand the tooling marks out?

Im mostly wondering how to do that. Wether the marks are forged or ground in...
I thought sanding over those marks can make them worse?
 
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