I'm a free hand kinda guy .....
I use a Craftsman belt sander 6" X 48" with different grit belts to make the basic edges on flat plane blades, chisels, even scissors without taking them apart and the rounded blades on axes and hatchets. Ever have a scissors that will cut paper great, but not cut a plastic bag or electrical tape? I also use a drill grinding jig to sharpen twist drill mounted to the table. It is a very versatile machine because you can change the grit in less than a minute. Then I use diamond stones to "hone and polish" that edge.
This is a very fast method, BUT you need to develop the skill to hold the blade constant angle. I turn the edge at a slight angle or perpendicular to the belt and carefully watch the change in the reflective surface. I've been doin' this for years and it works well for me. To me, sharpening means "restoring" a blunted edge which means grinding and that is different than "honing" an already good edge. You need to use a different machine/system for each condition.
I don't do any wood lathe work, so the long handled gouges aren't an issue for me. If I did need to sharpen then a simple jig mounted to the table would suffice.
This and my 2 other belt sanders are used for woodworking for small pieces and is less likely to burn like a disc sander which has much different surface speeds from the center outwards on the disc. My discs are cemented on, and it takes 5 to 10 minutes to change them out. I really don't use mine much because of this.
The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)
Last edited by woodnthings; 10-05-2020 at 11:06 AM.