Thread: Convex Sharpening

Can anyone recommend a good convex sharpening service near Auckland?
I’ve don’t have the confidence to have a go at it and not sure if I should trust a random knife sharpener
Cheers

Bit pricey but does a good job, personally I would hate having to send my knife to someone else to sharpen haha https://engineerscollective.co.nz/pr...-onion-edition

i have the ken onion also, great bit of kit. just a pain when your in the feild and need a sharpen lol.

What is it you are wanting to sharpen?
YouTube is pretty good to learn from.
If its just knives etc, you don't need fancy gear.
Practice on something that isn't crucial.

Fine wet and dry paper on a mouse pad.

This. It's a bit tricky to get the angle and pressure right. Practice on an old kinfe before you take to your hunting knife.

The pressure you use is what sets how much convex you are putting on the knife, and the angle between the blade and the mat determine how much the convex 'hangs over' the edge. Too much convex or angle and you are sharpening around the edge (if that makes sense) and you are actively bluntening the knife.

Youtube has some good videos on how to convex.

It can be time consuming to convex a knife that has a flat bevel. Lots easier to keep a convex knife sharp with a convex edge.

Also, if you need to touch a convex knife up in the field, you aren't going to wreck it by giving it a very light tickle with a ceramic rod. It's just as easy to carry a bit of wood with a strip of leather glued down to it, and a polish like Autosol on the leather, and use that to strop the convex edge.

One really good trick for all types of sharpening is to put vivid on the bevel, and then sharpen very gently and see where the vivid is being removed.

A hollow grind on a blade makes the biggest difference. Big thick survival type blades are hard to sharpen and hard to push to cut with

PM Shelley. He was brought up on sharpening rather than milk at the hospital. Dude knows his stuff.

https://www.nzhuntingandshooting.co....x-edges-65035/

What he says.

Have the Ken Onion sharpener shown above, awesome bit of kit. Would be able to sort for you if down the road….

Only contact is on the edge so you don’t scuff the blade and make a mess of it.

I sourced off shore for about half the price above.

It’s not something you want to tell your mates about as you don’t get many sharpens out of the grinding straps and they are not cheap.

Sorry lost track of this thread - its a Fallkniven F1
I just use it as my general hunting hack but its got a bit past using the steel to keep an edge
I'm taking the assumption I can't do a convex properly and once I've made a mess of it I'll be taking it to someone to fix anyway

Thanks for the offer mate, I'm a bit far away but will have a look into the Ken option

I use Sword knives which are convex ground. A fine grit oil stone works fine to clean the edge up


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have a go..you have nothing to loose...but send it to fella suggested above if you cock it up....

If ya gotta send it away to do a convex why not just do a conventional edge on a stone?
Actually if you are shit at stone sharpening you tend to end up with a convex edge.