Spyderco Endura ZDP-189 Slicer grind

K

kwackster

Joined
Dec 23, 2005
Messages
2,064
A couple of days ago i modified this 5 year old Spyderco Endura ZDP-189 from a saber/flat ground to a saber/hollow ground knife with the help of my trusted Tormek T7 fitted with an SB-250 Black Silicon stone & a modified knife clamp.

Previously the knife looked like this (with an already reprofiled edge of 25 degrees inclusive):



Now the knife looks like this.
Although the edge was only marginally thinned to 22,5 degrees inclusive, the area just behind the edge is much thinner now at +/- 0,3 mm, making the knife cut better noticeably.

 
The edge was done on my 60 grit Rubber Wheel, after which i stropped it a little on leather with 6 micron diamond compound.
Rubber Wheels are custom made from natural rubber mixed with silicon carbide grit, and mine measure 8 inches in diameter.

Here are some pics:



Grit 60 on the left & grit 180 on the right:

 
Last edited:
I like the looks of the first edge better; however, really like the additional cutting performance of the second edge even more! Great work. :thumbup:
 
Just because it's possible i thinned the edge of the ZDP-189 Endura a bit further with the help of my Tormek, and according to the angle gauge it now measures 17.5 degrees inclusive.
To have enough strength the edge needed a very small bevel (just visible, but not measurable for me), but now i can cut into the edge of a piece of laminated desk forcefully without rolling or chipping, and also without any noticeable loss of sharpness.
Thickness behind the edge now: 0.18-0.20 mm.





 
Last edited:
You must log in or register to reply here.
Back
Top