|Forum topic by Boodles||posted 08-17-2013 12:54 AM||1817 views||0 times favorited||10 replies|
08-17-2013 12:54 AM
I apologize for the amount of pictures which are to follow, but it’s the only way to explain exactly what I’ve done and seen.
I recently purchased a set of Marples Chisels made in Sheffield, England from a seller on eBay for $30 (I researched and read reviews that these Sheffield Marples are of good quality for a beginner.)
I then researched how to sharpen them, and found this helpful video from startwoodworking.com: http://bcove.me/w9urcocc
Once I received the chisels, I purchased a 12” x 12” piece of marble tile, 60 grit to 600 grit sandpaper and a pack of 3m microabrasive paper instead of waterstones. After too many hours, too many sheets of sandpaper and several days, I was able to flatten the backs of the chisels up to 600 grit (I’m waiting to use the microabrasive paper until I grind the bevel and add the microbevel.)
Yesterday, I picked up a Ryobi 6” bench grinder in order to grind the new main bevel on the chisel. I found that a 25 degree angle is pretty much standard and well accepted (and match the bevel currently on the chisel), so I attempted to make a “jig” to help me keep a consistent angle.
As expected (in my opinion), it failed quite miserably. I would keep the top of the chisel flat against the jig and slowly bring the bevel into contact with the grind wheel for a few seconds, and then immediately dunk it in a glass of water to cool it down. Apparently, as I continued this process, I didn’t let it cool long enough and I believe I may have burned the chisel a tad.
I guess I’m kind of stuck as how to proceed. I have only attempted to grind a new bevel on the 1” chisel, and will leave the other three chisels alone until I get some feedback from you much more experienced woodworkers here!
Along with these chisels, I also picked up an old hand plane that used to be in pretty rough shape. I used the same process of flattening the backs of the chisels to flatten the sole of the hand plane.
I used the same sand paper, and I stopped “polishing” it at 600 grit (once again, I want to wait to use the microabrasive paper until all of the tools are ready for that final stage.) As you can see, the toe of the plane is a bit higher than the rest of it. Do I need to continue sanding and flattening the sole, or is it okay? The only thing I care about is getting it done correctly so I will not have any future issues with the tools.
As I just said, I don’t care if I have to redo everything, but I just want to do it correctly and be able to move on and start using my tools!
I look forward to hearing your feedback (no matter how, uh, “constructive” it may be); thank you!