Center lines

[alexkuzn]

I am using calipers to draw two line in the center of blade spine.
While grinding, dumping into water and handling layout dye comes off and those two line becomes hardly visible.
Do you have any suggestions for me.

Thanks,
Alex

[jwfilion]

Alex, first I layout the two lines with a surface gage so that it is easy to recut the two lines, should they disappear. That way you can lay it down on the flat of the blade and still hit the right lines again, rather difficult with a vernier if you've ground the flat away at the cutting edge. I also cut an initial bevel at about 45 degrees to a point almost touching the lines. Once there, you can concentrate on the master bevel. It will be more apparent when the master bevel gets closer to the lines, especially if you keep that 45 degree beveled area blued. Hope this helps.










































it will be fairly visible as you get close to the lines

[Ray Rogers]

I use a carbide scribe designed for marking those lines on knife blades (about $12 from Sheffields, I think). The only way you'll lose those lines is if you grind them off....