Sharpmaker angle question

[Boink]

Does the 30 degree angle option on the Sharpmaker mean 15 degrees per side on the actual knife?

 

[dialex]

Yes it does.

 

[tim8557]

yes...the 40 degree angle refers to 20 degrees each side

 

[Boink]

Thanks! If I go with 30 degree, what's a good angle for a secondary bevel? The knife I have in mind is a slipjoint with a thin blade - made by Eye Brand. It came with somewhat of a blunt edge.

 

[Andy_L]

just shapen it on the 15 and then take the burr off with the 20

 

[tim8557]

I agree with Andy on sharpening (reprofiling?) at 30 and then going to 40 BUT it may be a lot of work with a Sharpmaker. The rods just take forever to change the angle on a blade.

I usually reprofile to 30 degrees with my Edge Pro and then do the next edge at 40 degrees. After that, I do touch up on the Sharpmaker at 40 degrees.

Good luck.

 

[Andy_L]

I may try sticking some wet & dry round the stones for reprofiling the edge to start with. I also wonder if my brother could get some rods made that will fit so I could glue it on and still use the stones

 

[prn]

For reprofiling knives that I would want to sharpen with a Sharpmaker afterward, I took a piece of 2x6 (I see the OP is from England, so I'm not sure if they use the same terminology, but that's a board of nominal 2" x 6" dimensions, actually about 3.8 cm thick by 14 cm wide, the actual dimensions are not at all critical) and made a single angled cut at 15 degrees across the width. Then I mounted the cut pieces on edge on another board so that they made a 30 degree V. I can then set a coarse benchstone into that V, supported on either side and I can use that to do the basic reprofiling of the blade with the same technique that I would use on the Sharpmaker. It works pretty well and it's fairly fast (and certainly cheap ).

Paul

 

[DGG]

I like PRN's suggestion. He must be from Scotland. Great idea and modest cost to easily profile a blade at a given angle.

 

[Joe Talmadge]

I, too, often do a primary edge at 15 degrees, and just use the 20 to knock off the remnants of the burr.

For re-profiling, I use the sharpmaker. I either lean a coarse hone against the sharpmaker, basically getting the same effect that prn is after, but using the Sharpmaker itself to set the angle. Or, I've recently taken to just taking a piece of very coarse wet/dry sandpaper and wrapping that around the spyderco's stone.

Joe