I'm making a grinder for sharpening lawnmower blades, and as part of it, making an axle for the grinding wheel.
And since it's being driven via a pulley, I'm putting in a keyway for the pulley, and since I don't have a mill, I decided to make a jig so I could use my lathe to do it. I worked off this video:
Pretty straightforward. Here's the jig:
And after milling it:
Did a reasonably good job, edges needed to be cleaned up with a file.
But, unfortunately, this is the result:
Not quite centered.
So, today's lesson: When making a jig, give it a trial run to make sure it works right...
I can get a pulley on it with a key, but it wedges on really good...
Tomorrow, I'll try shimming the jig up a smidge [technical term], test it out on another shaft, and then put another keyway in the axle on the opposite site.
And no, that red stain on the far side of the carriage is not blood.
And since it's being driven via a pulley, I'm putting in a keyway for the pulley, and since I don't have a mill, I decided to make a jig so I could use my lathe to do it. I worked off this video:
Pretty straightforward. Here's the jig:
And after milling it:
Did a reasonably good job, edges needed to be cleaned up with a file.
But, unfortunately, this is the result:
Not quite centered.
So, today's lesson: When making a jig, give it a trial run to make sure it works right...
I can get a pulley on it with a key, but it wedges on really good...
Tomorrow, I'll try shimming the jig up a smidge [technical term], test it out on another shaft, and then put another keyway in the axle on the opposite site.
And no, that red stain on the far side of the carriage is not blood.