Sharpmaker advice. Tip control
Sharpmaker advice. Tip control
People say a stone, including the Sharpmaker will round the tip of your knife if you let the blade leave the end of a stroke. The sharpmaker instruction video seems not to address it. Makes it look ok. The sharpening process time about triples for me if I have to stop on each stroke to protect the tip. Help me understand this please. Thanks!!
Re: Sharpmaker advice. Tip control
You can start by placing the tip at the bottom of the stone and moving upwards while pushing the blade forward. This would be edge trailing as opposed to edge leading.
What I did to get better control was to mount the Sharpmaker down to a heavy piece of countertop. This way I can use both hands on the knife.
I guess it really is how much pressure you are using. If you are using a super light pressure it’s less like to round the tip. With heavy pressure and fast speed I’m sure it’s possible.
What I did to get better control was to mount the Sharpmaker down to a heavy piece of countertop. This way I can use both hands on the knife.
I guess it really is how much pressure you are using. If you are using a super light pressure it’s less like to round the tip. With heavy pressure and fast speed I’m sure it’s possible.
Re: Sharpmaker advice. Tip control
Rounding the tip is the one negative aspect of most Sharpmaker users.
Easy to avoid if you understand the problem and slow down to control the tip from sliding off the stone edge.
I consider it invaluable for serrated edges however, rarely use it for straight edges, much prefer the flat Spyderco bench stones.
Regards,
FK
Easy to avoid if you understand the problem and slow down to control the tip from sliding off the stone edge.
I consider it invaluable for serrated edges however, rarely use it for straight edges, much prefer the flat Spyderco bench stones.
Regards,
FK
Re: Sharpmaker advice. Tip control
Welcome to the forum mpgtsm. :)
It’s been a while since I watched the SharpMaker DVD but yes, if you let the blade fall off the stone even with absolutely minimal pressure you’ll loose your tip.
For that reason I only use the flats of the SharpMaker stones and not the corners.
It’s been a while since I watched the SharpMaker DVD but yes, if you let the blade fall off the stone even with absolutely minimal pressure you’ll loose your tip.
For that reason I only use the flats of the SharpMaker stones and not the corners.
A day without laughter is a day wasted. ~ Charlie Chaplin
Re: Sharpmaker advice. Tip control
Sounds like a good plan. Thank you. It is much easier to do that on the flat sides
Re: Sharpmaker advice. Tip control
One thing I thought of: are you using this to touch up your edges, or to make an entirely new bevel altogether? I’ve done the latter and it takes hours for a decent edge, assuming you have a rough edge to start with.
The sharpmaker is best suited for touching up a working edge, giving it a razor edge.
My apologies if I’m assuming too much of course!
The sharpmaker is best suited for touching up a working edge, giving it a razor edge.
My apologies if I’m assuming too much of course!
Re: Sharpmaker advice. Tip control
I only use a Sharpmaker and have never rounded a tip on any of my knives. The key is to not move the tip off the rod on a stroke. I never use the corners of the rods on the tips, but use the flats. And I end the stroke with the tip in the middle of the flat, as opposed to going off of it. It's easy to do, but difficult to put into words. You also don't want to use a lot of pressure. You do NOT need to sharpen a blade vigorously on the SM.
Jim
Jim
Re: Sharpmaker advice. Tip control
There is zero benefit to using heavy pressure when sharpening. It creates a drastically larger burr, a weaker edge, gives you a duller apex and risks damaging your stones. There is absolutely no reason to ever do that.
OP, you have it right. Sharpening time increases the higher your standards are. If you're ok with a big burr, low edge retention and a rounded tip, use lots of pressure and drag the tip off the stone. If you want a good edge, use light pressure and never drag the tip off the stone.
With practice, familiarity breeds efficiency.
OP, you have it right. Sharpening time increases the higher your standards are. If you're ok with a big burr, low edge retention and a rounded tip, use lots of pressure and drag the tip off the stone. If you want a good edge, use light pressure and never drag the tip off the stone.
With practice, familiarity breeds efficiency.
Last edited by vivi on Mon Jan 14, 2019 3:31 am, edited 2 times in total.
Re: Sharpmaker advice. Tip control
I agree. I much prefer the wider bench stones for PE work. The SM is perfect for SE and recurves, but there are better options for typical PE blades.FK wrote: ↑Sun Jan 13, 2019 8:41 pmRounding the tip is the one negative aspect of most Sharpmaker users.
Easy to avoid if you understand the problem and slow down to control the tip from sliding off the stone edge.
I consider it invaluable for serrated edges however, rarely use it for straight edges, much prefer the flat Spyderco bench stones.
Regards,
FK
Re: Sharpmaker advice. Tip control
Regarding the right amount of pressure, I'd like to repeat a tip I've shared before.
If you can't do your finishing strokes on the sharpmaker with one hand (assuming the base is not mounted), you are using too much pressure.
You should be using less than the weight of the knife for your finishing strokes. You basically want to use the lightest amount of pressure you can while maintaining consistent contact with the stones.
Don't support the sharpmaker with your off hand or any mounts while you finish up your edge. If the base moves, you're pressing too hard.
This is the secret. This is why I can whittle individual hairs with any steel right off the brown stones.
If you can't do your finishing strokes on the sharpmaker with one hand (assuming the base is not mounted), you are using too much pressure.
You should be using less than the weight of the knife for your finishing strokes. You basically want to use the lightest amount of pressure you can while maintaining consistent contact with the stones.
Don't support the sharpmaker with your off hand or any mounts while you finish up your edge. If the base moves, you're pressing too hard.
This is the secret. This is why I can whittle individual hairs with any steel right off the brown stones.
Re: Sharpmaker advice. Tip control
Thanks everyone. I really appreciate the help. I have a new Benchmade that has a very sharp 30 deg edge (s30v) from the factory. I think the sharpmaker and I can make it even sharper, and polish the edge. I’m not in a rush. Just want to do it right. I broke the sharpener in with a few cheap knives. The first one had an uneven grind and I had to reprofile it on another stone. All the rest were easy work on the sharpmaker. Thanks again. I hope I learn enough to be an asset here. It looks like a great site.
Re: Sharpmaker advice. Tip control
I watched the video the other day and you are correct, Sal never mentions tip control and is pulling the knife right off of the stones in a way that would round the tip for you and me. When they made that video Sal had probably already sharpened a million knives so his technique was flawless.mpgtsm wrote: ↑Sun Jan 13, 2019 6:49 pmPeople say a stone, including the Sharpmaker will round the tip of your knife if you let the blade leave the end of a stroke. The sharpmaker instruction video seems not to address it. Makes it look ok. The sharpening process time about triples for me if I have to stop on each stroke to protect the tip. Help me understand this please. Thanks!!
My technique is to use the flats and have my downward stroke stop against the plastic base with the tip in the middle of the stone. The plastic is softer than the steel, so as long as your not slamming the tip against it, you'll not dull the edge. Besides, live Vivi I use extremely light strokes (and can whittle hair off of the brown stones).
Re: Sharpmaker advice. Tip control
Quoted for emphasis/truth.
Re: Sharpmaker advice. Tip control
Our very own Lance shared this video before. Some good pointers on sharpening tips.
https://youtu.be/DI8lTj-F8gA
https://youtu.be/DI8lTj-F8gA
15 's in 10 different steels
1 - Bradford Guardian 3 / Vanadis 4E Wharnie
1 - Monterey Bay Knives Slayback Flipper / ZDP 189
1 - CRK Small Sebenza 31/Macassar Ebony Inlays
1 - CRK Large Inkosi Insingo/ Black Micarta Inlays
1 - CRK Small Sebenza 31 Insingo/Magnacut
-Rick
1 - Bradford Guardian 3 / Vanadis 4E Wharnie
1 - Monterey Bay Knives Slayback Flipper / ZDP 189
1 - CRK Small Sebenza 31/Macassar Ebony Inlays
1 - CRK Large Inkosi Insingo/ Black Micarta Inlays
1 - CRK Small Sebenza 31 Insingo/Magnacut
-Rick
Re: Sharpmaker advice. Tip control
I've really only used the corners on recurves and SE, otherwise I use the flats and that alone greatly reduces tip rounding. If that isn't enough you can start at the tip or slow down when you reach the top. This can still be an issue with SE if you're not careful. I usually do SE on the corner and then flip over to the flats and work on just the PE portion at the top by itself.
All SE all the time since 2017
~David
~David
Re: Sharpmaker advice. Tip control
What does SE and PE mean?Evil D wrote: ↑Mon Jan 14, 2019 8:13 amI've really only used the corners on recurves and SE, otherwise I use the flats and that alone greatly reduces tip rounding. If that isn't enough you can start at the tip or slow down when you reach the top. This can still be an issue with SE if you're not careful. I usually do SE on the corner and then flip over to the flats and work on just the PE portion at the top by itself.
Re: Sharpmaker advice. Tip control
Hi, mpgtsm:mpgtsm wrote: ↑Mon Jan 14, 2019 8:23 amWhat does SE and PE mean?Evil D wrote: ↑Mon Jan 14, 2019 8:13 amI've really only used the corners on recurves and SE, otherwise I use the flats and that alone greatly reduces tip rounding. If that isn't enough you can start at the tip or slow down when you reach the top. This can still be an issue with SE if you're not careful. I usually do SE on the corner and then flip over to the flats and work on just the PE portion at the top by itself.
Welcome to our forum. SE - SpyderEdge (Serrated) and PE - PlainEdge. There's also PS which means CombinationEdge (Plain/Serrated).
We hope you enjoy your time with us.
Kristi
There is nothing more important than this one day.
Re: Sharpmaker advice. Tip control
My fix for this potential issue is to start at least half of the sharpening strokes with the tip on the stone, then pushing down and forward to follow the edge, this gives excellent control in that critical tip area. If that technique doesn't work for you to get all the way to the heel of the blade, then alternate the starting point from tip to heel, just make certain that you never drag the tip off of the stones and you'll have crisp tip geometry.
-David
still more knives than sharpening stones...
still more knives than sharpening stones...
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Re: Sharpmaker advice. Tip control
This is what I do too.
- Connor
"What is a man profited, if he shall gain the whole world, and lose his own soul?"
"What is a man profited, if he shall gain the whole world, and lose his own soul?"
Re: Sharpmaker advice. Tip control
I just stop ~1/4” from the tip when using the points. All tip work is done on the flats, and I aim to end my stroke with the tip at the hole in the plastic base.