building a lathe tool sharpening jig

[cody michael]

I want to duplicate something like this
http://www.instructables.com/id/Sharpening-jig-for-turning-chisels/

I have a similair wood setup that I have never been happy with, plus welding is fun. so I have a few questions, I have an 8 inch grinder from woodcraft. how much lower then the grinding wheel should the jig be? I am assuming you would measure from the arbor.

I am also planning some tool holding blocks like these
http://www.aroundthewoods.com/sharpening04.html
only metal.

I have these bowl gouges
http://www.pennstateind.com/store/LCBT4.html

what height should the holding block be? and what is best angle for the shaft coming out to be?


my plan for the holding block is to get steel tubing just big enough to fit the tool into, and weld a leg on at the appropriate angle.


any input is appreciated

[Reed Gray]

The gouge in the picture of the long arm jig is not at all like the ones in the picture of your set of tools. The long arm is usually used for spindle roughing gouges. Most will use a platform or a jig that will rotate/pivot so you can get sweep to the wings of the gouge.

This is one of the clips up on my You Tube channel about sharpening. I use just a platform, and have a clip about that as well:

https://www.youtube.com/watch?v=fdZ4iDyPhWo

robo hippy

[Thom Sturgill]

I would definitely skip the two pocket jig and use a platform for skews. You will need a good platform for the scrapers too. Check out Capt. Eddie's (http://eddiecastelin.com/combos_and_other_items) site for his blackhawk rig. He's convalescing right now so much of his hardware is not available, but I think he makes plans available. There is a you-tube on the rig (https://www.youtube.com/watch?v=5i9RDnJHz9g).

[cody michael]

I would definitely skip the two pocket jig and use a platform for skews. You will need a good platform for the scrapers too. Check out Capt. Eddie's (http://eddiecastelin.com/combos_and_other_items) site for his blackhawk rig. He's convalescing right now so much of his hardware is not available, but I think he makes plans available. There is a you-tube on the rig (https://www.youtube.com/watch?v=5i9RDnJHz9g).

His setup is almost exactly what I was planning. I do have spindle gouges I use so I like the style I have, I just needed the dimensions to build what's in this video. I ty hint the video shows wh as t I need.

[Leo Van Der Loo]

I want to duplicate something like this
http://www.instructables.com/id/Sharpening-jig-for-turning-chisels/

I have a similair wood setup that I have never been happy with, plus welding is fun. so I have a few questions, I have an 8 inch grinder from woodcraft. how much lower then the grinding wheel should the jig be? I am assuming you would measure from the arbor.

I am also planning some tool holding blocks like these
http://www.aroundthewoods.com/sharpening04.html
only metal.

I have these bowl gouges
http://www.pennstateind.com/store/LCBT4.html

what height should the holding block be? and what is best angle for the shaft coming out to be?


my plan for the holding block is to get steel tubing just big enough to fit the tool into, and weld a leg on at the appropriate angle.


any input is appreciated

Grinder shaft center should be between 6.25 and 6.5 inches above the bench for the Wolverine sharpening jig setup.

Your setup is fine for traditional bowl gouges and spindle roughing gouges and spindle gouges Mike, for the Irish grind you need another jig, the Vari-grind jig

here are all the info you need I think, http Take this out ://www.oneway.catake this out also/pdf/grind_jig.pdfnot hard to do.

[cody michael]

Grinder shaft center should be between 6.25 and 6.5 inches above the bench for the Wolverine sharpening jig setup.

Your setup is fine for traditional bowl gouges and spindle roughing gouges and spindle gouges Mike, for the Irish grind you need another jig, the Vari-grind jig

here are all the info you need I think, http Take this out ://www.oneway.catake this out also/pdf/grind_jig.pdfnot hard to do.

Thanks that is what I needed, for the base, I will have to order some metal and see how this turns out

[cody michael]

I would definitely skip the two pocket jig and use a platform for skews. You will need a good platform for the scrapers too. Check out Capt. Eddie's (http://eddiecastelin.com/combos_and_other_items) site for his blackhawk rig. He's convalescing right now so much of his hardware is not available, but I think he makes plans available. There is a you-tube on the rig (https://www.youtube.com/watch?v=5i9RDnJHz9g).

on the black hawk rig, the holder for the gouge is 4 inch high, on my current setup, its not, I just use the pocket where spindle gouges go, what does the extra height accomplish?309923309924 these pictures are what I am using currently. taken from the guide I followed.

[Thom Sturgill]

The 4-7-2 numbers, and the design of the blackhawk jig are based on the design David Ellsworth published to create his version of the Irish Grind. Other than that it creates a 60 degree nose and puts the point of the gouge higher on the wheel, I do not know what effect it has on the geometry. The 4" is the vertical distance from the pocket tot he center of the wheel. The 'leg' is typically 7".

BTW, my first jigs were also home made and I found that that wood block was hitting the stone far too much.
309925

It kept me fromn getting the wings ground right so I ended up buying the OneWay Vara-grind.

[cody michael]

Thanks, yours are much nicer looking then my wood ones, I think I will make a jig for each gouge, I only have 2, and they should be quite cheap to make. if I add more gouge I can builg them as I need them. thanks for your help

[cody michael]

I bought some metal for the jig yesterday, should be all I need plus some for about 15$, also got some plate steel thrown in so I will see about making a platform also