The making of a knife , part 2 .
After grinding the blade with grit 120 , I continue to 180 . Then I change
to the Trizact-belt A 65 and A 45 .
Now it is time to make some decorations , i.e. filework .
The first thing that I do is using a marker pen and dye the area that will
be fileworked . Then I mark the centerline with a scribe and also marks the
places where I will do my working .
When this is done do I take a small square file and marks the places
better . The next thing is to use different files to different fileworking
Experiment a lot to find out some special patterns that you like .
When all this is done do I send the blade for proffessional heat treatment
. When it comes back I start to do the hand sanding , using a flat piece of
soft wood or plexiglass to the flat parts and a piece of hard rubber hose
or a ice hockey puck, ground to the same radius as the contact wheel, for
the edge .
Because this is Damasteel and I have to etch the blade , I stop hand sanding
at grit 800 . Otherwise , I go to 2000 or 1200 depending on what type of finish
I want on the blade , polished or satin finish . Now it is time to profile
the handle slabs , I will have a "frame" of damasteel around the
mammuth ivory and mark the handle profile on to the ivory . After that I move
the markings appr. 5 mm inwards and cut it oput with a bandsaw . Take it very
easy , mammuth ivory is very sensitive to heat .
I clamp one of the ivory slabs to the handle , in desired position and drill
the pin holes .
After that I clamp the two slabs together and drill the holes using the
first slab's holes as markers .
Using two old drills as "pins" , I start to grind the two slabs
together , making them a pair , same size and form .
When I have the size I want , I mark the form of the slabs on a piece of
spacer material and cutting and filing it out exactly .
When the handle slabs are finished it is time to etch the Damasteel . I
use a 1 liter plastic bottle , cut off at the top , filled with hydrochloric
acid . Let the blade be in the acid 25-35 minutes , a little bit depending
of what koncentration and what temperatur the acid has .
Be sure to use gloves , eye and inhalation protection , work in
a well ventilated area because the vapour is toxic !
( I sometimes use acetic acid , but it takes a couple of days
for the acid to work properly , but it is much healthier ! )
Sorry , no photo from the acid process , I didn't want to destroy my camera
I have used 1,5 mm goldthread for the pins , be sure to have flattenend
or doomed ends of the pins to get them properly peened . Use 24 hour epoxi-glue
, to be sure that you don't run out of time when gluing the handle slabs .
The finished work before scrimshaw looks like this :
If you have any questions , please contact Anders Johansson at email@example.com