20 degree for cgbb13?

Spirch

Spirch

Joined
Apr 4, 2012
Messages
535
I'm currently in the proccess of putting a close to 20 degree angle on this. Lansky kit with dmt stone, 20 degree hole. Because of the recurve, i know it wont be 20 everywhere.

I'm expecting to use it for chopping mostly soft wood but maybe some hard one here there.

I'm nearly done reprofilling but i just now thought, is it too low???

What is your opinion?
 
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^+1

15° is my stock reprofile for almost everything and I haven't had any issues yet on hard or soft wood, 20° should still be bombproof. :thumbsup:

I started with a 15° reprofile on mine, then things got a little rough and nasty with a primary regrind as well lol. :eek: :D:

2017_08_21_17_15_37.jpg
 
This is great to hear! I have been experimenting with different knives with 20 deg...glad to hear these reports.

C
 
I’ve sharpened to 10 degrees on some knives, 14 degrees on others, but the sweet spot for me in terms of effort required to maintain the edge without losing too much on performance is between 18-19 degrees per side. Now there might be some slight angle variation from heel to tip, but for the most part it’s consistent. Hope you find your sweet spot — cheers!
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nice mirrors there, i might not go there or i might, depend what i can do with the time i got :)

thanks, keep the opinion/pics coming
 
I'm guessing you mean 10 deg. per side for a total of 20 inclusive...

--OR--

Do you mean 20 per side for 40 incl. ?

I'd say you're ok even with the more acute V unless you hit a hidden piece of something harder than wood or an especially tough knot.
 
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per side, the lansky guide doesn't go under 17 per side

i'm aiming to stop at the fine (red) stone for now, i got the beige one (extra extra fine) but i don't see the point of going there, a few hit on wood and it's back to a "more" coarse look :)
 
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i'm done with the dmt fine stone now (red) going to see how it goes
 
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Are you going by the Lansky guide to measure 20° or using something like an angle cube to find the true angle?
 
Be careful with the Lansky system—the edge angle varies with the width of the blade (width—not thickness). It’s a good system especially with their diamond stones, but the angles are not dependable other than as a guide to repeat an edge previously set with that system.
 
tokerblue said:
Are you going by the Lansky guide to measure 20° or using something like an angle cube to find the true angle?
Click to expand...

simply using the 20 degree hole on the guide

Will York said:
Be careful with the Lansky system—the edge angle varies with the width of the blade (width—not thickness). It’s a good system especially with their diamond stones, but the angles are not dependable other than as a guide to repeat an edge previously set with that system.
Click to expand...

I know and that is why i stated in my original post that "close to 20" :)


I think i will get an electronic measurement tool to get the actual angle
 
I used mine to chop down a black walnut last night. It was growing too close to the house and had two trunks ~3" and 4" in diameter. The CGBB13 made short work of it. Felt really good to swing the '13 again, it had been a while. Switched to the Boom Parang for delimbing and sectioning the branches.

For measuring angles I use an app on my smartphone. Mainly I use it to set my belt sander at the desired angle for grinding so all I have to do is hold the blade up vertical at 90 degrees, but it can also be used to measure edge bevels fairly well in a pinch.
 
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