Fred.Rowe
Knifemaker / Craftsman / Service Provider
- Joined
- May 2, 2004
- Messages
- 6,848
Can you build something like this to fit your grinder?
Sure you can :thumbup:.
I used to break into a cold sweat, just thinking about grinding a blade. :barf:
Getting the angles correct and making both right and left sides, the same,
was a serious challenge to me.
I was learning on my own. I needed a teacher. There were non available to me locally.
I needed something that would hold onto the blade and give me the same angle of approach every time, both sides. Why not a bubble? That would give the same read every time.
To figure out at what angle to mount the bubble relative to the surface of my platen, I needed to know the degree of angle between level and the surface of the platen. LEVEL AND PROTRACTOR needed here. Set the 3 foot level on the top wheel of your grinder and measure the angle to the platen.
Once you know this angle, you subtract: 11-10-9-and-8 degrees from it. These are the angles you set on your miter saw, to cut the tops of the four blocks that you mount the bubbles to. [Use quick set epoxy].
I got the magnets from the refridge.
There is no guessing, just keep your eye on the bubble.
I always start with the steepest pitch bubble, this allows me to grind the edge evenly and start the plunge cuts.
I can move move up the blade towards the spine by changing the pitch; changing to a different bubble.
The spring clip that holds the blade lays against the side of the platen.
This keeps the blade aligned across the belt. By applying thumb pressure to
the end of the spring clip you exert control over the jig.
The spring clip came from the CSX R.R.
It takes a couple of blades to get used to the jig; but within a week you can be grinding professional looking blades. Both sides the same with even plunge cuts. Just watch the bubble!
I guess you could say; I built myself, a teacher.
Fred
Fred
I will be happy to answer any questions.
Fred <-Bethel Ridge Forge->
Sure you can :thumbup:.
I used to break into a cold sweat, just thinking about grinding a blade. :barf:
Getting the angles correct and making both right and left sides, the same,
was a serious challenge to me.
I was learning on my own. I needed a teacher. There were non available to me locally.
I needed something that would hold onto the blade and give me the same angle of approach every time, both sides. Why not a bubble? That would give the same read every time.
To figure out at what angle to mount the bubble relative to the surface of my platen, I needed to know the degree of angle between level and the surface of the platen. LEVEL AND PROTRACTOR needed here. Set the 3 foot level on the top wheel of your grinder and measure the angle to the platen.
Once you know this angle, you subtract: 11-10-9-and-8 degrees from it. These are the angles you set on your miter saw, to cut the tops of the four blocks that you mount the bubbles to. [Use quick set epoxy].
I got the magnets from the refridge.
There is no guessing, just keep your eye on the bubble.
I always start with the steepest pitch bubble, this allows me to grind the edge evenly and start the plunge cuts.
I can move move up the blade towards the spine by changing the pitch; changing to a different bubble.
The spring clip that holds the blade lays against the side of the platen.
This keeps the blade aligned across the belt. By applying thumb pressure to
the end of the spring clip you exert control over the jig.
The spring clip came from the CSX R.R.
It takes a couple of blades to get used to the jig; but within a week you can be grinding professional looking blades. Both sides the same with even plunge cuts. Just watch the bubble!
I guess you could say; I built myself, a teacher.
Fred
Fred
I will be happy to answer any questions.
Fred <-Bethel Ridge Forge->
Last edited:
and those that just can't get the hang of it free hand for sure... :thumbup:
:thumbup: 
I think this was/is a marketable product!
The fact that I do have 2 left hands really makes this a neat-o jig.
