Requesting DXF drawings

JTknives

JTknives

Blade Heat Treating www.jarodtodd.com
Knifemaker / Craftsman / Service Provider
Joined
Jun 11, 2006
Messages
8,647
As the title states I’m looking for a few DXF knife drawings from diffrent people. We are finalizing the choice of cnc plasma cutting software and trying a few diffrent ones. I want to run a few of your knife designs through to see how it likes what you give me. These blades will not be cut just simulated in the cam software. Thanks guys, any files can be sent to my email jtcustomknives
@gmail.com
 
Thanks guys. I will run them through the program when I get home.
 
jdm61 said:
How about crayon drawings? That is about the best I can do. ;)
Click to expand...

It’s funny you bring that up because this software will read drawings/pictures lol. Not as accurate as a DXF as it has no size reference
 
Yeah send them on over. One of the knife DXF I got imported all funky but was corect in solidworks.
 
JTknives said:
Yeah send them on over. One of the knife DXF I got imported all funky but was corect in solidworks.
Click to expand...

SolidWorks DXF export can be done a few ways, not all of which work well; I've seen some come in that way too.

I don't like exporting DXFs from drawings; my preference is to select the face (in the model), then right click >> save face and save as DXF. It should be noted that R12 DXF does not support splines, so curves other than circles and ellipses will be converted to lie segments. This limitation does not apply to newer DXF versions.

Also, sometimes the curvature generation in your 2D cad can make things look blocky when they first open. If that's the case, run the REGEN command in CAD.

By the way, I'm really excited that you're going to be offering the CNC service along with HT, and I'm looking forward to ordering from you once it's going.
 
I used to set up, program & run CNC plasma cutters at an old job...

I found that sometimes the conversion software would cut in a direction/order that did not provide the best part finish or efficiency. To get around this, I would trace over the profile with a continuous polyline in AutoCAD, including the lead-in and lead-out arcs. It usually just takes a few minutes, but made a huge difference in quality. Since the plasma arc is rotating out of the nozzle, it can make a huge difference (with slag buildup and edge finish) to cut clockwise or counterclockwise around a profile.

One thing, when converting from a line drawing to G code, splines usually don't play well because they can't be defined by a simple coordinate system. I always took the time to break splines up into smaller tangent arcs, then it would run no problem.

If you need some other files DXF, maybe drawn a few different ways, I'm happy to send them your way.
 
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