I've got the fittings rough shaped and fitted to the knife. So, I'll now post the process that I used to do this work. My machinist skills have been mentioned earlier in this post. If anyone was hoping that I was going to demonstrate how to clamp the fittings materials in a milling machine and come out with finished pieces, you are about to be disappointed; 'cause that ain't gonna' happen. All of this work is done by band saw, grinder, files and sandpaper.
When I make complicated fittings, like the guard for this dagger, I always start with a drawing of the piece. In fact, this entire knife began as a drawing. I use Corel Draw to create my drawings. The Corel software is a bit expensive, but I'm sure there are other drawing programs that will do the same thing at a lower cost. Elements of the knife, like the blade and the guard for this dagger, are created by drawing half of the piece, copying the half, flipping it over and pasting the copy in alignment with the first half. This gives me a perfectly sized and symmetrical drawing that I can use for a pattern to make the part. I will add vertical and horizontal reference lines to the drawing that I will later use to align with reference marks on the material. I have found this method to be the most accurate way for me to create drawings and patterns to use in the construction of a knife. The printed patterns have much cleaner and thinner lines than I can draw with a pencil, so it is easier to finish the part to exact dimensions by removing material to these clean lines on the pattern.
For this guard I had two drawings; one from the side of the piece and one from the top. Once I have the drawings, I use them to think through the process of how I am going to shape the part. One surface on the piece of raw fittings material will be my starting reference point; usually the bottom of the material. All measurements for the other elements of the finished piece will be from that surface. Too, this surface will be used to position the material for shaping of the other elements. At some point in the process of shaping the piece, this beginning surface may be removed. At that time, another area of the material will become the reference point for measurements and alignment. So, to be sure that I don't get ahead of the process and remove a reference area before I am through using it, I will write down a step by step procedure of how the part is to be shaped.
Thinking through the steps that will be required to shape the part not only gives me a step by step process, but will point out anything about the design that I cannot figure out how to finish. If I can't figure out a way to shape an area of the design, it is time to change the design to something that I can create.
The guard material is scribed with reference lines for the pattern.
View of the reference lines on the guard.
The pattern is attached to the guard material with glue. I use stick paste glue on a small area of the guard material to initially attach the pattern. I have about ten seconds to get the pattern aligned with the reference marks before the paste glue sets up. I then flood the surface of the guard material with Super-Glue and roll the paper pattern down into the Super-Glue with a Q-tip. The Q-tip squeezes out the excess Super-Glue and absorbs it.
The material is sawn to the line with a band saw.
A shot of the part during the sawing operation. I begin by chunking out pieces of the steel.
Once I have most of the steel cut away, I will use the band saw blade to remove material very close to the line. I use the teeth on the band saw blade kind of like a file to scrape away material. The table on the band saw must be perfectly squared with the blade so the cuts will be accurate through the material. This is the guard material after the sawing is complete. You can see that I was not able to reach the inside corners of the scrolls. You can also see two projections of material that I left on the bottom of the guard. These are required for a later operation.
The saw teeth marks on outside of the guard are cleaned up on the belt grinder.
I need to transfer the cut lines to the back of the guard material so I can clean out the inside corners of the scrolls. For demonstration purposes of another pattern technique, I have made a pattern out of some thin brass to scribe the lines on the back of the material. Typically, you would only make the brass pattern as half of the design and use it to scribe lines on both halves of your material.
Cutting out the inside corners with a jeweler's saw. This is some pretty heavy cutting for a jeweler's saw, but the little blades are amazingly efficient. Cleaning out these corners could be done later, after the scroll ends have been ground thinner, but chose to do it while the material is at full thickness and while the pattern was still attached to one side of the piece. I will have to come back to clean these areas up more later.
Cleaning up the jeweler's saw marks with a die-sinker's file.
The top view drawing of the guard is glued to the bottom of the material. The reference lines for aligning the pattern are on the two projections that were left on the bottom of the material.