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Varigrind question

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Forum topic by Burbs posted 02-11-2017 08:43 PM 507 views 0 times favorited 4 replies Add to Favorites Watch
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Burbs

48 posts in 518 days


02-11-2017 08:43 PM

Been learning freehand sharpening but picked up the one way wolverine and varigrind mainly to do fingernail and Irish grinds on gouges.

Have a 1/4 inch Sorby gouge that I would like to put an Irish grind with b/ 30 and 35 degree angle.
Set up the varigrind per the video, got my angle set and took some off the side. Put it on the varigrind and quickly got everything looking decent except the sides are a bit concave. Don’t want to waste anymore tip than I need to. Did I grind the sides back too much and do I just need to concentrate on the front?
Or is the side angle off and do I need to adjust the varigrind?
Thanks to anyone that can help.

-- ---The day I learn nothing of value will be the day I'm laid to rest--- Burbs


4 replies so far

View OSU55's profile

OSU55

1423 posts in 1824 days


#1 posted 02-12-2017 04:48 AM

Sounds like you ground a bit too much off the sides. To get a convex line front or toe to back, you will need to grind more from the nose to lower the front end of the bevel line. There’s no way to raise the back or middle part of the bevel line -the material has been removed.

View mpax356's profile

mpax356

72 posts in 2327 days


#2 posted 02-14-2017 12:13 AM

Is the flute V shaped (parabolic) or more C or U shaped? If it is the latter, you won’t have much luck with a swept back grind because the wings will get too thin and fragile.

-- MPax, Atlanta

View Skatergirl46's profile

Skatergirl46

17 posts in 431 days


#3 posted 02-14-2017 11:30 PM

This is one of the best tutorials on turning tool sharpening that I have seen. Doug Thompson also makes really nice turning tools.

https://youtu.be/ttYyulsM7wg

-- I'm happiest when I have wheels on my feet or sawdust in my hair.

View Burbs's profile

Burbs

48 posts in 518 days


#4 posted 02-15-2017 12:01 AM

Thanks for the responses guys. I got a little carried away on the sides and I need to increase the bevel to between 35-40 so I can adjust the varigrind and clear the end. Going to have to be real gentle sharpening the sides for awhile and really watch the wings so I don’t get a catch.

On a side note, been doing all spindle work with a skew or a 3/8” bowl gouge. 1/4” and 3/8” spindle gouge are a real treat to use. Didn’t realize what I was missing.

-- ---The day I learn nothing of value will be the day I'm laid to rest--- Burbs

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