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Main Boards => PowWow => Topic started by: Valkyrie on October 02, 2014, 06:13:00 PM

Title: Convex Edge on BH's
Post by: Valkyrie on October 02, 2014, 06:13:00 PM
Doing an experiment on this. I took some 1000 grit paper and a mouse pad and went to work on a few of my Zwickeys. Worked them down to 2000 grit and finished on a loaded leather strop. They are wicked sharp.

Anyone ever do a convex edge on theirs?  I use this profile on a few of my knives.
Title: Re: Convex Edge on BH's
Post by: mellonhead on October 02, 2014, 09:20:00 PM
I have been wanting to try it for awhile.  I also have a few knives with a convex edge.  I would like to hear about your results.

Toby
Title: Re: Convex Edge on BH's
Post by: nineworlds9 on October 02, 2014, 09:35:00 PM
So are you talkin like a Scandi grind or similar on a broadhead, no secondary bevel?  Hmm.  I had a knife recently with a Scandi grind and it was wicked sharp, but the edge seemed fragile, or rather it seemed very suited to cutting softer materials, i.e. flesh, raw wood, etc like butter, but anything substantially harder could cause the edge to deform or chip...I wonder how an edge like this would perform hitting bone etc?  

Very curious, because Silverflames appear to have a convex edge, are scary sharp, and have a rep for exceptional durability.  Just seems like most heads have a secondary bevel like most knives.  Although perhaps this is just a labor/cost cutting measure, no pun intended.  

Please report your results.
Title: Re: Convex Edge on BH's
Post by: mellonhead on October 02, 2014, 09:53:00 PM
A Scandinavian grind is different than a convex grind.  A convex grind is like the edge on an axe or hatchet.  It actually has more material on the cutting edge and makes for a stronger edge.  

Toby
Title: Re: Convex Edge on BH's
Post by: nineworlds9 on October 02, 2014, 10:24:00 PM
10-4, I looked up the difference, should have realized the difference but didnt.  Scandi is a wide primary bevel with a flat section above...Convex is a rounded profile from spine to edge, no flat section above the primary bevel.  Thanks.  Still interested in Valkyries results.
Title: Re: Convex Edge on BH's
Post by: Valkyrie on October 03, 2014, 06:35:00 PM
The convex design is definitely a stronger edge and it takes some time learning to do it. So far I sport a bald left arm tweaking the profile and I have the edges straight razor sharp now having stropped them down to jewelers rouge. I'll be out next week with a crossbow(yeah yeah) but I plan on sitting out with this one later in the month. My comfort zone is about 15 yards with a stick bow so it might be some time before I get a performance report on my convex edges.