BMW Rider
Super User
I got the solder and flux as a kit from Lee Valley Tools. They also sell a blade alignment jig. Of course they are marketing their product more for wood working bandsaws, but it works just the same for metal blades.
I did grind a bevel on the blade ends freehand and had no trouble doing it that way. I cut the blade ends square first, then just lightly ground the end on the bench grinder. I'll have to get a picture of the jig, but it is just a piece of flat aluminum that I milled a groove along one edge to create a shoulder to align the blade to, a notch at the center where the lap joint goes to allow soldering and a couple of clamps to hold the blade halves to the jig. I made the clamps independent so I can clamp one piece, then align the other end and clamp it.
I did grind a bevel on the blade ends freehand and had no trouble doing it that way. I cut the blade ends square first, then just lightly ground the end on the bench grinder. I'll have to get a picture of the jig, but it is just a piece of flat aluminum that I milled a groove along one edge to create a shoulder to align the blade to, a notch at the center where the lap joint goes to allow soldering and a couple of clamps to hold the blade halves to the jig. I made the clamps independent so I can clamp one piece, then align the other end and clamp it.