Convex grind on non-traditional blade shapes

[kodeslinger]

Hi guys,

I was wondering if anyone had any experience sharpening convex/appleseed grinds on large blade shapes that are not linear.

I'm thinking like Kukri style machetes, or big camp knives with a recurve belly (think Kershaw Outcast, Spyderco Forrester) etc.

How would you strop/polish something like this? The mousepad method seems hard to use.

 

[Grampa]

To put a convex edge on one of those, I use a Harbor Freight 1x30" belt grinder - it's actually very simple. I can use the same machine to hone/polish it, or keep it touched up with my usually block strop/hone: wood + leather + polishing compound. When the recurve gets too deep for the flat of the strop/hone, just use the edge or corner. The knife won't know the difference! :thumbup:

 

[LedSled]

Surgi-Sharp makes leather belts for 1x30 and 1x42 belt sanders that do a fine job of polishing with any number of different pastes. Recurves shouldn't be a problem.

 

[kodeslinger]

To put a convex edge on one of those, I use a Harbor Freight 1x30" belt grinder - it's actually very simple. I can use the same machine to hone/polish it, or keep it touched up with my usually block strop/hone: wood + leather + polishing compound. When the recurve gets too deep for the flat of the strop/hone, just use the edge or corner. The knife won't know the difference! :thumbup:

thank you, i guess i need to try that out..

i've been trying with mousepad but it didn't really work well

Where do you guys buy your polishing compounds usually (i live in Canada so the stores are a bit more limited)

 

[siguy]

you can try wrapping that mousepad with sandpaper around a wood dowel or pipe of the right diameter (it doesn't have to be any particular size). this will act just the same, but will be easier to use with a deep recurve.

 

[Zeasor]

you can try wrapping that mousepad with sandpaper around a wood dowel or pipe of the right diameter (it doesn't have to be any particular size). this will act just the same, but will be easier to use with a deep recurve.

I have used several different sizes of PVC pipe with mousepad.