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What's a good way to keep lathe tools sharp?

4K views 9 replies 9 participants last post by  Wildwood 
#1 · (Edited by Moderator)
Ok, have a question.

I'm a woodcarver but I have thought about getting into turning. I have a Wilton mini variable speed lathe that I bought about 10 years ago and have never used. Well, I take that back, I used it a couple of times when I first got it. I stop using it because I thought the motor was burnt out. I got it out the other day just because I was bored and it seems to be working fine.

So, I dug out the old lathe tools that I had and they are in need of sharpening. I have looked on here, youtube, etc. and found ways of sharpening them. My question is, "If I sharpen them to a sharp edge, could I use a buffing wheel to keep the sharp edge?" Instead of using a grinder everytime.

The reason why I ask is that when I carve, I don't use a stone everytime. I use a strop to keep the edge. Unless I chip or damage the blade in some way, I don't use a stone.

Any advice or direction would be great, thanks.
 
#2 ·
I'm barely a wannabe turner, and don't carve at all. That won't stop me, I think stropping an edge is good is the edge doesn't have much wear….I'm thinking of my bench chisels. But lathe tools wear much faster, to the point that I would think (but do not know) that the edge is beyond being restored by stropping.
 
#3 ·
You will need a way to grind the edges for sharpening - grinder, belt or disc or lathe disc sander, etc. If you think about, or calculate, the # of feet/min a lathe chisel is cutting, I think you will understand the need for grinding the edge. Stropping can work for a touch up - I use a leather wheel sometimes, but it doesn't last as long as the original edge. There are carbide insert type tools for wood that typically are not resharpened, but they are for rough cutting - the surface finish is not nearly as good ass a sharp HSS tool.
 
#4 ·
No on using a buffing wheel to resharpening! You do not say what kind of steel tools made of, but would recommend touching up tool edge with a diamond card.

Lot depends upon wood and type of turning and results you are getting as to degree of resharpening needed. Also amount of damage you are doing to the wood.

Once you get in the habit of touching up a tool edge on a turning tool doesn't take long. Whether with diamond card or bench sander or grinder.
 
#7 ·
On my skews, I shape with a belt sander. After that, I hone with a diamond card followed by an MDF wheel on a HF buffer:
Gas Composite material Cylinder Machine Engineering

For a quick touchup on skews, I most often skip the diamond card and just use the buffer.

Gouges are all shaped and sharpened on the CBN wheels on my grinder.
 

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#8 ·
Like others I do hone my skew because it is a straight edge and with some of the cuts you are trying to direct the force into the headstock or tailstock so the sharper the better.
For most other tools just grinding. As Fred stated, its the speed. ie A 6" diameter bowl at 1,000 rpm has 300 inches of wood coming past the cutting edge per Second. No way to keep it sharp like a carving chisel.
 
#9 ·
Grinder and Jig. If you don't want to spend all your time sharpening, get a grinder and jig. When it gets dull, set up the jig (or leave it set) and touch up your tools. Takes only a few seconds…
The SFM of a lathe just makes it impractical to just touch it up with a strop or buffing wheel-there's just not enough left of the edge..
 
#10 ·
Years ago made me an MDF honing wheel to mount on my lathe after reading more than a few articles. Besides wasting my time and dulling my tools in the process; quit that Op pretty fast! I do hone by hand by very quickly with my diamond card if can find it!

Mostly go from the grinder to turning. I use my Wolverine set up and also free hand sharpen my tools. You only want to dress up the edge not waste lot of steel.
 
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