Come tracciare il coltello nelle sue varie fasi e rendere il lavoro più semplice e ripetibile, dalla scontornatura, alla mezzeria e i fori di fissaggio del manico.
Tracciare il coltello
When you have to make a knife you have to have clear ideas about the shape to be executed, on the bisellation, how to fix the guard, how to fix the handle, whether in a hidden cod, or a tapered cod, etc.
I remember the first few times I made a knife that I made very improvised silhouettes and all in all they were fine, but having a detailed knife design already is crucial, in fact, I’ll tell you more, the more detailed it is,excuse the pun (this is a suggestion of a CIC master).
If you have studied mechanical technology, have done workshop or work in a metalworking workshop you know well that the mechanical pieces have a work cycle for the knife is the same thing.
There is a sequence that you have to use and respect to get a good result and this sequence you have to think about it before you do it.
Each maker has its own sequence and they are pretty similar to each other.
Each route must be finished at 100 before moving on to the next stage, and I tell you the 100 not the 90, everything you leave behind you will be forced to resume it later with greater difficulty.
The stroke of the shape is one of them, it is part of the route.
La tracciatura della sagoma
The shape is the perimeter of the knife and is the outline that you will follow by performing the discounting of the knife.
It is one of the first operations that you do but even before you check the flatness on a feedback plane of the portion of steel bar that you have cut.
If it is not gliding before tracing you have to make it glide from both sides, if you can also do it after the discounting but if you have the option make the bars adjusted but consider that it is a cost that you can avoid.
You can do this in several ways:
- Con una dima e uno spray che colora la barra,
- Con carta stampata e incollata sulla barra di acciaio ,
- Tracciata sul blu di prussia come un pezzo da officina,
What method do you use?
Attention! What is important is that tracing when you bathe the knife to cool it does not erase or disappear.
Once you have the bar tracked at this point you can start discounting.
It’s a fun phase! I don’t know it depends on the tastes to me relaxes.
Some makers who make small productions even to save money buy instead of steel bars the slabs and make laser cutting the silhouettes of the knives they want to make but it is something worth doing for those who make more copies of the same knife.
La tracciatura della mezzeria
This is a very important trace to avoid having an asymmetric knife.
Consider that before the temper is not a line to be drawn but a double line.
Please note that before hardening you need to leave a minimum thickness to ensure that the blade does not melt during the hardening phase.
There are many methods to trace the centerline:
- Il truschino sul piano di riscontro (metodo professionale)
- Una scarsetta temprata con più altezze per tracciare diversi spessori su piano di riscontro (metodo professionale)
- Una punta da trapano (mmm non sempre è così precisa)
Ps. Also consider tracing on the plate of the blade and on the start if you need to make a handle with tapering.
La tracciatura dei fori
The position of the punctures through the punching and the choice of their size is also a very important step to avoid redoing them or having to recoil when the knife is hardened (helpoooo!!).
For jig users, it is also punctures to attach the knife to the tool.
Personally I do not use Jig but freewheel ingese pier without support, at first the master made me use a stand but then told me now you have to learn to freewheel molar if you really want to make a leap of quality and check all the bends of bisellatura the only way is does freehand, it’s an art.
The best do so!
It was like starting over!
Now to return to the hole speech on the knife
You have to consider all the holes:
- I fori per il manico
- Le foratura per la guardia
- Il foro per il paracord
- Fori di alleggerimento (non mi piace utilizzare questa tecnica) o scarichi sagomati di alleggerimento (skeletonized tang)
- ecc. ecc.
Ps. Punctures and types of punctures depend on the design of the knife, which is why it is important to have clear ideas.
La tracciatura della bisellatura e delle linee del coltello
When the bisellatura it is complex you need to devote time also to tracing the lines that mark the lines of the knife to have precise references.
Having references is something fundamental when searching for the perfect copy or repeatability of a blade.
In some cases it is crucial as in the daggers and the symmetries are even more evident as they are on the same side but the same applies also to the symmetries on the opposite faces of the knife.
Take the right time to track, without being in a hurry.
This is one of the key steps for a successful knife and a good track has never been lost.
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