CNC wire Bender File Format

[j_ly4]

Dear All,

I am interested in creating my own CNC wire bender. I would like to bend .09" to .055" piano wire and found this cool DIY project which would be able to output 3D Wires. Before embarking on trying to build this project I see that inputting the dimensions for the wire I am looking for may be troublesome. Is there a format I can export from fusion 360(like stl) to be compatible with the way these arduinos recieve dimensions?

https://code.google.com/archive/p/diwire/

https://makezine.com/projects/diwire-bender/

Thank you for any feedback!

[j_ly4]

Update: Found that Fusion360  can export meshes into .OBJ files

https://www.youtube.com/watch?v=Dxjmh8CsI6o

is this the same as the wave OBJ file referred to in the tutorial?

How do I input this into the Arduino Uno?

[TrippyLighting]

I don’t see any file formats mentioned in the two documents you linked to. No you cannot put a triangulated 3D mesh file in any format onto an Arduino Uno.

1. It does not have tjenprocessing power to deal with that sort of data

2. It does not have the memory to hold that data.

3. It only uses 8 bit integer vs. 16+bit of floating point.

I’d  have a hard time believing that a software and determine proper bending from the data in a triangulated mesh file.

[j_ly4]

Hi TrippyLighting,

Thanks for taking the time to respond. In this link:

https://code.google.com/archive/p/diwire/

The first paragraph states:

DIWire Bender by Pensa - www.PensaNYC.com The DIWire Bender is a rapid prototype machine that bends metal wire to produce 2D or 3D shapes. Simply draw curves in the computer, import the file into our software and press print. Our software can read vector files (e.g., Adobe Illustrator files), Rhino or Wavefront OBJ 3D files, text files of commands (e.g., feed 50 mm, bend 90° to right…) or pure coordinates (from 0,0,0 to 0,10,10 to….). All inputs are automatically translated into DIWire motor commands. During the print, the wire unwinds from a spool, passes through a series of wheels that straighten it, and then feeds through the bending head, which moves around in 3 dimensions to create the desired bends and curves.

In this video:

https://www.youtube.com/watch?v=ve1zzDXlJoA

at 0:38 he creates a 2D shape

and at 1:07 he draws a 3D shape with Rhino.

I was wondering if Fusion360 can provide an output like Rhino that can be used to bend wire in this DIY.

I hope that makes things more clear.

Thank you!

[TrippyLighting]

Fusion 360 possibly can do this, but you should direct these questions to the creators of this  this machine.

what he does in Rhino is a 3D shape of. Spiral ant them seems to be converted into ploy line segments, because that is how the bending machine creates these curves. So what is output from Rhino is some form of vector information.

 It is not 3D volumetric information and for theses things  is also not needed.

[j_ly4]

Thanks for the advance TrippyLighting. This is their response.

I see that fusion 360 can output dxf which can go into illustrator or inkscape to become .svg

can this 3d(?) shape be put into svg?

Thank you for any input ❤️

[TrippyLighting]

I have no clue if the .svg format supports 3 dimensions. But you can always simply try out how far you get.