Do you have any specific recommendations that you could recommend on sharpening bandsaw blades?
Todd,
I mentioned this in post #14 in this thread but didn't provide any details.
I sharpen on the saw, using a Dremel with small metal-cutting disk. These disks are intended to cut a narrow slot with the edge and not with the side but it works fine. Barely any pressure is needed but still should wear safety glasses, of course. Good light. Dust mask to prevent breathing metal dust. Sharpening the blade is also a good time to check for defects in the steel, such as cracks at the weld.
I sharpen what might be called the front or outside of the tooth, the part that faces me. I know some say it's best to sharping the curved gullet but that's more effort without making a sharpening jig and sharpening the front works for me. I never take the blade off the bandsaw to sharpen.
I know others who sharpen this way. Too bad the amazing Steven Russell's website is no longer up - he had good instructions and sharpens much like I do. I downloaded his web site from the Wayback Machine (internet archive) and have it all on my computers but not sure how to share the info.
I've been sharpening this way for years, usually at least 3 sharpenings before I change the blade, sometimes 4 or 5. The blades I use are 1/2"x3tpi and with my saw that's over 420 teeth so it does take a bit of time but not too bad.
I mark the starting point on the flat blade sides and the fronts of maybe three teeth with a red sharpie. Can also attach a bit of tape as a marker.
I rest my hand on the table and hold the Dremel so the flat of the little cutting disk is aligned with the shop of a tooth. I grind near the top of the disk so the grind marks are horizontal. Touch the disk to the tooth for maybe 1/2 second. Make sure it's cutting all the way to the sharp edge - the sharpened spot will be shiny and easy to see. It doesn't need to be large, just a tiny spot at the tip. Pull down the blade with my left hand to position the next tooth. Repeat.
Some blade teeth are set left-right. My Lenox blades have the teeth set to the left, center, and right. I've experimented with swinging the sharpening disk so it's aligned with the the original three angles and compared to just sharpening each tooth straight across - I can't tell any difference in the resulting cut.
One thing - the last time I checked I was not a machine so there are small variations on the teeth. The result can be a rougher saw marks on the sides of the kerf. This doesn't affect what I mostly do - cut up log sections to make turning blanks to dry, cut away defects, cut dry blanks to size for turning. I'm faster now than when I first started this. takes maybe a second per tooth.
One think I tell others is how to know when the teeth are getting dull (besides a noticeable difference in the cut). Even dull teeth will feel sharp when lightly running the skin of a finger up the teeth. But run the flat of a finger nail or thumb nail up a few teeth - dull teeth will slide on the nail while sharp teeth will catch on the nail.
Another thing people usually asked in my bandsaw classes is how to coil a blade. Harder to explain in words than in person. I could try to write a description if anyone wants it. There are probably videos. A big, thick blade like those for my Woodmizer sawmill are difficult and can be dangerous. But even small thin blades can be tricky if you don't know how. Once you master making three loops, try 5 loops. Then if adventurous, try 7 coils!
JKJ