Welcome! ppl have been contacting me telling me this site wasnt working i think i found the problum and have fixed it sorry for the truble enjoy
ok at some point i am going to go through
and actually grind the steel that i am showing you so you can see it for
real and get better pics and maybe some pics of me using other tools in
the shop just in case you might find it interesting
UPDATE: in recent days the smith has actually gotten off his rear and taken some new tutorial photos, unfortunately he happened to use a piece of steel shaped very
similar to the old one (ie metal and rectangular), but unbeknownst to him he happened to change from left hand grinding to right hand grinding. if for some reason you can not reconcile this in your mind, feel free to download the offending photos to your computer, and use your favorite editing software to flip said photos... although the shop will then be backwards, it will show you the grind... otherwise, tough it out, (heehee.)
There are lots of good books out there on the subject of knife making,
but none of the books I have read really show you how to hollow grind.
Some have pictures, but they are vague at best - only being shown how,
or using a jig, can teach you to hollow grind; due to the fact that itís
mostly felt and not seen.
Once you establish a grind, you should be able, with a little practice,
to follow it. The best way I found for a new knife maker to learn is to
start the grind for them, and let them feel the blade on the grinder.
This allows the person to feel what its like when its right, instead of
fumbling in the dark for something that looks right. I had a friend making
a knife the first night I showed him, using this technique. However, I
canít go door to door and show every body how to grind. Well, I do have
a lot of time on my hands (knock knock. Hello elderly lady, would you
happen to have a bench grinder so I can teach you to hollow grind knives?)
- never mind.
This works for bench as well as belt grinders with the right kind of work
rest. For starting a hollow grind, set the metal to the wheel with the
machine off to get the angle you want. Then lock a pair of vise grips
to the work rest to limit the travel of the blade (see drawing below).
Set the knife on the rest with the machine on and rock the blade forward
to start grinding, moving the knife left and right. This will establish
the hollow grind (you should get both sides started before you remove
the vise grips so both sides have the same starting angle). You can then
keep this up till you are done with the knife, or remove the vise grips
when you can feel the grind enough to go solo. Then you just follow this
grind by feel till you can do it around corners.
Scribing a center line will keep your grinding line from getting too out
of whack (yes, that is a technical term). Now blade tips - that is just
luck ... er, I mean practice! Like I said about grinding around corners,
what you have to do is rock the handle end down in an arc as you grind.
Bob Engnathís (may he rest in peace - he has unfortunately gone to the
Big Belt Grinder in the sky) solution for new makers was to clamp a piece
of half round stock to the work rest to rock the blade on to make this
job easier. I use my fingers (and when polishing I get slick spots on
them!). Well, down below is a drawing of what I'm talking about. Be safe,
and good grinding!
this is the vice grips in place on my belt grinder
if you can't clamp them on like this you may have to make a new rest but
most bench grinders will be compatible with this, also i use the needle
nose vise grips because i have them close at hand. this will work with
regular ones too
this is the motion to bring the blade or bar stock
into the grinder so it won't bind or start to grind the blade without you down and towards
this is how it should look before you start to
grind and the arrows show the direction of pressure as you start to grind
the purple shows approximately what the angle of the vice grips will do
to the steel as you grind it away
this is the first action of dragging the blade
across the rest to get the hollow grind started
and this is how it should look after this motion is completed
this one shows curving into the tip. i recommend
getting good at making and following a hollow grind before working out
to a tip like this also if you forged the blank make sure to leave a lot
of metal at the tip so you can grind it away, not enough metal and the
grind will look funny.
you want to keep the center of the edge that
you are grinding pointing up into the belt as you go (sounds confusing but stick with me on this one)
and this is finishing of the pass be careful to
keep the blade at about the same angle when doing all this as when grinding
with the vice grips or the tip will look funny or be thicker than you
want it to be
and this is what the motion i was trying to describe in a non confusing manner ...ok now im confused but the dragging thing with the pokey thing should with time, practice and a whole lot of luck look some what like this.
email me if you have