SGA - reeder vs wuertz

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REK Knives

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Has anyone used both? I'm curious on rigidity (reeder allows for a double bar design for extra rigidity). Also, seems like reeder will allow for an extra axis (y) tilting which could be useful for fixtures.

Anything I'm missing or feedback appreciated

Links :

Reeder
Wuertz
 
I've used both. The Reeder is much easier and more versatile, IMHO (distal taper, tapered tangs, even bevels).
It is heavier built, and when mounted on the double arm, rock solid.
You can do a longer blade on the Reeder. Fullers are also possible.

Just the smooth and easy side-to-side motion with the handle grips is enough as far as I am concerned.

I know a FIF guy who got a TW-90 SG and got rid of it for a standard surface grinder. He said the up-angled pumping was crazy tiring.
 
That's some good info Stacy, thanks.

I also like the fact that, on the reeder, you can swap out larger/smaller wheels by using the secondary hole. I would like to have a full aluminum wheel as well as the rubber
 
Josh Rider said:
Yes.
I use it on my kmg. It’s simple for tapered tangs. I have a stand alone unit too, but using the sga is way faster and easier.
Click to expand...
I'm in the same boat... I have a stand alone stone (haric 618) but it takes forever lol
 
It seems all the cool kids are using surface grinders to do tapered tangs.

I glad I learned how to do it, watching the Loveless video, on a 2x72 grinder.
 
AVigil said:
It seems all the cool kids are using surface grinders to do tapered tangs.

I glad I learned how to do it, watching the Loveless video, on a 2x72 grinder.
Click to expand...
Definitely faster on a platen, but then it has to be flattened again on a disc. Probably just as fast either way.
 
Stacey,

How are fullers done on a Reeder? For one of the sides I get it. But the other side not so much. I might be limited in my small wheel setup.

I'd love to see a pic of the setup if someone has one.

Stacy E. Apelt - Bladesmith said:
I've used both. The Reeder is much easier and more versatile, IMHO (distal taper, tapered tangs, even bevels).
It is heavier built, and when mounted on the double arm, rock solid.
You can do a longer blade on the Reeder. Fullers are also possible.

Just the smooth and easy side-to-side motion with the handle grips is enough as far as I am concerned.

I know a FIF guy who got a TW-90 SG and got rid of it for a standard surface grinder. He said the up-angled pumping was crazy tiring.
Click to expand...
 
Josh Rider said:
Definitely faster on a platen, but then it has to be flattened again on a disc. Probably just as fast either way.
Click to expand...

I never flaten them on the disc, when I was doing them I had no disc.

I just ground with a glass platen, then a few back and fourth on granite block with sand paper.

Grinding taper tang goes fast on the 2x72
 
Blackdirt cowboy said:
Can the reeder be used comfortably on a pheer grinder that only operated in the vertical position?
Click to expand...
No, it is a side-to-side horizontal movement type. The contact wheel would have to be on the same plane.

Fullering - I haven't tried it yet, but what I have read is you put the grinder in the upright position and put the desired size wheel on as a contact wheel. You position the SG so it goes along the centerline and slowly form a basic fuller. I suspect it takes a bunch of adjustments and that this would only be useful to form the basic fuller, which you would hand finish.
 
i use my tw-90 slide horizontal so i can sit-n-surface grind. as far as stiffness, as long as there is no flex between the contact wheel and the sliding table, it will be ok. any flex of the arm between the contact wheel and where it attaches to the grinder wont affect accuracy as long as the belt is tight on the wheel.
 
john april said:
i use my tw-90 slide horizontal so i can sit-n-surface grind. as far as stiffness, as long as there is no flex between the contact wheel and the sliding table, it will be ok. any flex of the arm between the contact wheel and where it attaches to the grinder wont affect accuracy as long as the belt is tight on the wheel.
Click to expand...

when I built my own it seemed really flimsy/flexible between the sliding table and wheel. I got to feel a wuertz sga a couple months ago and was quite impressed w/ the rigidity, which can make a lot of difference in the final product. That was the reason for my questions above :)
 
AVigil said:
I never flaten them on the disc, when I was doing them I had no disc.

I just ground with a glass platen, then a few back and fourth on granite block with sand paper.

Grinding taper tang goes fast on the 2x72
Click to expand...

I get what you’re saying. My point was just that with the surface grinder or surface grinder attachment will eliminate that need to go to a granite plate with sandpaper or a disc.
It’s especially quicker if you’re doing batch work.
Definitely a great upgrade if you can afford it.
 
Josh Rider said:
I get what you’re saying. My point was just that with the surface grinder or surface grinder attachment will eliminate that need to go to a granite plate with sandpaper or a disc.
It’s especially quicker if you’re doing batch work.
Definitely a great upgrade if you can afford it.
Click to expand...

But the time spent on the granite is only a couple of minutes.

The glass platen gets it 99% flat and I take everything to a surface plate, even the surfaced ground steel I buy.

Surface grinders take far longer to do a tapered tang then the way Loveless did it.

I can get a perfectly flat tapered tang in 10 minutes

I understand people using one if have they trouble doing a tapered tang on the grinder.
 
I agree with Adam that for tapering a tang the grinder is a whole lot simpler. On a long distal taper the SG probably has the advantage. That said, I do all tapering on the flat platen.

What a SG does best is make things flat. You can tweak them to do all sorts of things ( tapers, bevels, fullers, etc.) by making adjustments, but making flat and parallel surfaces is what I think a SG is most useful for in a knife shop.
 
I taper on my flat platen like Bob Loveless. They come out flat. I don't need to refine with a granite plate or anything else.
 
AVigil said:
It seems all the cool kids are using surface grinders to do tapered tangs.

I glad I learned how to do it, watching the Loveless video, on a 2x72 grinder.
Click to expand...

Tom Lewis said:
I taper on my flat platen like Bob Loveless. They come out flat. I don't need to refine with a granite plate or anything else.
Click to expand...
Is there a link to the Loveless video? Or is it for sale somewhere?
 
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