Playing with Draftsight AKA Knife Design

T

The Gopher

Joined
Mar 4, 2011
Messages
176
CAD software is not something i'm used to. I've been playing with draftsight and came up with a knife design that I like. I've always liked this style knife similar to Horsewrights Ranchero, i'm sure there are others as well.

7.5 inches overall length. I don't care for the middle one too much but the straight back was a natural step between the top and bottom for me. Now I need to make one or three. Let me know what you think, thanks, Dan.

 
I like the top one best. As a bonus, it would be the easiest to make a sheath for as well. That bottom one would take some care or special design to slip into a sheath with out the tip snagging.
 
I also like the top one best. The only changes I might make would be to continue the curve of the front of the spine all the way back to the butt. Make it a shallow arc. I would also make the plunge line vertical. Just my opinion, for what it's worth

Tim
 
Thanks Tim, I like the suggestions. I also like the vertical plunge but i don't have a grinder or anything, I use a gough type file jig, so my plunge lines all end up being angled back a bit. The changes are below, thanks again!

 
Hey Dan,
Google Bruce Bump File Guide. He makes a stainless one with carbide faces which will allow you to make vertical plunges. If you use a chain saw file the plunge will be nicely rounded instead of being sharply angled. A sharply angled plunge sets up a stress riser which will cause the knife to break at the plunge if you put any sideways force on the blade.
Tim
 
Dan, I don't see why you couldn't use the Gough jig to get the vertical plunge. Just adjust the position of the knife where it clamps to jig such that the desired plunge line is perpendicular to the eye bolt holding your guide rod. Then just set your bump screw and you should be good to go.
 
your right, i just seem to have a harder time towards the point when I do it that way, I'll try again though, practice makes perfect!
 
I had a hard time at it too, I rounded off my tip while filling. I'm going to leave a nub of metal on the tip next time to give me more control at the tip. Then I'll cut it off when I'm done filing my bevel. If I were doing yours, I'd leave metal on like this:
 
Nicely done! That looks a little more advanced than a "Gough jig" ;)
Your knife looks really good so far.
 
I got this one finished with white fiber liners and red linen micarta scales, I think it turned out pretty good?





 
yeah, I've always like the red and white combo, it just looks classy, like a red and white Bel-air!
 
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