Some cool stuff I've found with computer knife design...

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Oct 20, 2008
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I've been messing around some more with computer drawing knives. I find that my favorite lately is Inkscape. I found this free program on the excellent recommendation of Patrice Lemee.

Here's a bowie I drew up real quick with Jantz supply azurite/malachite composite handle and bold twist damascus blade. It doesn't look totally realistic, but gives an idea of the knife with the materials and is pretty easy to do. Dimensions are easy to add. If it's a knife shorter than 11", you can size it to scale and have the customer print out a life size image to review.

Salem%252520Knife.jpg


It's pretty intuitive, just playing around with it and reading some of the tutorial docs here and there will be enough to yield decent results in a reasonable amount of time.

You can easily create a line drawing of a knife, then modify.

I can go to Alpha Knife supply for instance, to look at a piece of wood a customer likes or just to window shop. I can save the image of any block of wood I like, then open it with paint and crop it down to just a block shaped piece of wood with no background.

In my Inscape knife drawing doc, I click "import." I select the wood block image I've just cropped. It shows up in my document, I drag the corners to resize it and move it into position above or below the handle of the knife. With the block image selected, I command "object to pattern" to take the wood picture and turn it into a fill pattern.

I take the line drawing and click on the handle. I select "object fill and stroke." I change the fill to the pattern I've just created by converting the wood image.

The handle is filled with the wood image.

I can go to any image of a mosaic pin on a seller site, save it, mod it, then drag it onto my wood handle. I can keep a stock of different pin and wood images, or other handle materials like green canvas micarta, to use for custom fills or pin effects at will.

I keep a file of my trademark, the one I sent Ernie Grospitch (I designed it in Inkscape), and I can resize/reorient it and drag it onto any knife I've drawn, to look at how I want to orient it on the blade, or what size I want to use. All of these visual options can be used in customer correspondence to settle on design elements.

"Oh, you want this bowie we've drawn up to have a redwood burl handle with a sundial mosaic pin and a horizontal large-size trademark? Check it out, tell me what you think."

Sam%252520Bowie%2525202a.jpg


Inkscape saves in SVG format, but you can easily save copies in anything from PDF to PNG format to send to people with standard software. These pics were uploaded to Picasa in .png format.

There is a TON of stuff I've not yet figured out or even tried with Inkscape, but these are just some relevant uses I've found thus far. I have Autocad 2010 as well, but I have a lot more fun with this program. Also, I find it easier to use than Autocad for a self-taught guy.
 
I actually cut it into the drawing yesterday with a ball-nose. Talk about powerful software! :p

Of course, my laptop screen is totally trashed now...
 
This software would probably yield better results if used side-by-side with Photoshop or some other expensive photo editing software that I don't have. Finding high quality material images to import helps with verisimilitude.
 
I am so glad to hear that Salem. Inkscape is really great, especially if you are not the most talented with a pen like me. If you need photo editing software, GIMP is also freeware and will do anything Photoshop can. Well not true, it wont cost you an arm and a leg. ;)
 
+1 for GIMP, it's a great program and PS substitute for free. I still prefer Adobe but you can't beat GIMP for the price.
 
Or just go full 3D! I created these in a CAD program called Rhino. The computer really cuts down my prototyping stage and allows me to solve problems cheaply before i waste time and money on waterjet and cnc.

original_154721_PVTVWKlUGHaLzSLN9T55YyfNj.jpg


original_154721_C_OI_ecPZPAVHUV3JgJk7zdI3.jpg
 
that's great, Salem.
I use a reasonably lousy Macintosh 2D cad program. The one thing it DOES do well is poly splines.
The GIMP rules, and if you're using linux it's obviously well integrated, but it's much more paint-oriented.

A problem I've come up against is that I'd like to move from the drawings to 2D CAM files so blanks can be waterjet cut without having the jet operator re-path the thing every time. It's gonna cost me some money to have that done by a pro who knows how to bridge that gap for effective manufacturing.
I'd still prototype new designs in the usual fashion, but it would be GREAT to be able to order small sets of profiled, drilled blanks for the "finished" designs and hang them on the wall, ready for further production.

I just downloaded Inkscape for linux (it's even in the ubuntu package manager!) and will give it a shot.

-Daizee
 
Thanks for posting this... I have been thinking about finding a program to help draw. I love that it's ported to windoze and linux!

Here is another free interesting drawing program, but more for 3D drawings... I have used it to sketch a cabinet I built. It's easy to use also.

I could see using this one to draw a new workbench or map out your shop to see where you could move your tools/benches around.

http://sketchup.google.com/
 
I want to start using software to help design knives. Should I use Adobe Illustrator, which I have or is Inkscape a better program?

Thanks,
Ross
 
I want to start using software to help design knives. Should I use Adobe Illustrator, which I have or is Inkscape a better program?

Thanks,
Ross

Illustrator if you have it and are comfortable using it. It's the industry standard for vector design/drawing. Wish Freehand was still around . . .
 
JiffyPark, Thank you for the answer, I think I will try to work with Illustrator. I had a Digital Media Arts class a while back, used version CS3(which I still have and now plan to use).
Thanks again,
Ross
 
JiffyPark is right. Illustrator is the way to go for any vector drawing work. You can directly export into a .dwg or .dxf file format and send the water jet technician your plans. Saves you TONS of time and money!
 
Awesome deal, thanks for the tip..... I'll have to check that out..

William, That design is incredible, absolutely love it and want, want, want....... sleek, deep carry.. hmmm , gotta have it.. :)
 
Thanks for the link, dperk. I had sketchup and messed with it a bit. Never got good with it, though.

I'm definitely going to get GIMP and try it. Thanks for the link, Patrice.

William, that's absolutely slick 3D design. Love it.
 
Awesome deal, thanks for the tip..... I'll have to check that out..

William, That design is incredible, absolutely love it and want, want, want....... sleek, deep carry.. hmmm , gotta have it.. :)

Oh you will have it. Just give me a few more months. I'm currently building a workspace to do a limited run. Time to get serious and turn this hobby into a career.

Using computers in the design process is how products get made efficiently in the "real world". These days 3D CAD computer programs are so easy to learn that anyone who is capable of thinking up a design can input it into a program like Google sketch up. Once you are more familiar with how the 3D "world" works it's easy to migrate to more serious and powerful programs. Everybody is always wondering what it takes to go from custom maker to manufacturing. This is it. A solid understanding of 3D CAD and manufacturing processes can get you halfway there. The rest is just your personal contacts in the full scale manufacturing world.

Full disclosure: I have a bachelor's and master's degree in Product Design and sometimes I overestimate what is "easy". :)
 
Anyone who says knifemakers and bladesmiths are a bunch of troglodytes and cretins will be sent to Salem for a whuppin'.

Cool stuff!
 
Full disclosure: I have a bachelor's and master's degree in Product Design and sometimes I overestimate what is "easy". :)

I am glad you posted this cause somebody who never did 3D CAD before and thought they were gonna get results like what you posted is in for a big disappointment. I'd give them about 10 minutes before they said the heck with this. ;)

PS: Not to hijack this thread but a reminder of something I did on GIMP to get you started if anyone is interested: http://www.bladeforums.com/forums/s...ed-Photo-Manipulation-Tutorial?highlight=gimp

And I'd love to visit Salem so "knifemakers and bladesmiths are a bunch of troglodytes and cretins"! When do I get my plane ticket. :p
 
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