Robust factory grind?

[Lars Hansen]

Sadly Robust gear is rarely seen on our side of the pond but turner and
dealer Ronald Kanne in The Netherlands is doing his best to change that.

I just got the opportunity to take a closer look at two Turner's Edge bowl gouges.
I like the shape but looking at the factory grind, I can't really tell how it was made.
My guess would be a VariGrind-like system rather than a Tormek style one, but the
shape looks somewhat different from what I have seen before.

Is anybody here familiar with how (and with what jig/system) the grind was made?
Lars

 

[hockenbery]

When I got my Robust gouge first thing I did I was use my Ellsworth jig to sharpen it.
The factory grind made it easy to get the Ellsworth grind in a few passes.

In my opinion Factory grinds are just that. They make it easy to grind any winged grind are not a grind to be duplicated and used.

 

[Mark Jundanian]

Perhaps @Brent@TurnRobust will answer directly. But I tend to agree with Hockenberry, for the most part with all makers you're buying the steel, flute shape and possibly the mounting system. Possible exceptions would be a Stuart Baty tool.

 

[john lucas]

I thought the factory grind was awful but like Al said it just took seconds to reshape on the Wolverine jig.

 

[Lars Hansen]

I'm a faithful user of the Ellsworth grind with no plans to change that.
Just curious to expand my arsenal, so if someone can share knowledge about how this rounded shape was made, I'm still interested.
BTW my favourite brand, Crown, is selling the *worst* factory grind I ever saw on their detail gouge. Long, very concave and absolutely useless.
Guess it's impossible to sell un-ground tools, but that would be my preferred option.

 

[Roger Chandler]

I have two Robust gouges in 1/2” size. The grinds on them were identical to the ones I normally use on my most of my bowl gouges. I took an angle finder and saw the nose angle was right at 60 degrees on the nose. When I use my Wolverine grinding jig with 1-3/4” stickout, my grind replicated the nose angle and then I just rotated the sides to grind them.
If I were you, I would take the factory grind and put it against your wheel, the adjust the arm length until you get the nose angle, then sweep the side grinds. I think you’ll get really close to the factory grind. Now if you use a 2” stickout, it will change everything, so be aware that you don’t mess up, and have to put an entirely new grind on your gouge.