I’m using Fusion 360 to generate G-Code. After, uploading the g-code, I use the probe to define the origin (bottom left corner of material). It zeroes XYZ. Then I hit Start. Rather than moving to the starting point of the toolpath, the cut starts at the origin. I’m not sure if it’s an issue with writing the g-code or the CNC setup.
The simulation in Fusion360 shows the toolpath starting toward the middle of the file. I’m not sure why it sets the beginning of the toolpath in the middle. Fusion360 seems to randomly choose a point. I haven’t figured out how to change the toolpath starting point, or if I can.
you must have the workpiece origin in your 3D model exactly where you have it in reality, which means where you probe XYZ in reality. If you use the XYZ probe routine of the Onefinity CNC Controller, this forcibly requires to have your workpiece origin on the front left top corner of your workpiece 3D model.
Either you figure this out (in the Fusion360 documentation), and move the workpiece origin to the front left top corner in your 3D model, or you simply don’t use the Onefinity Touchprobe and the XYZ probe routine, but you manually drive the carriages so that your bit is exactly at the workpiece origin in reality, and then press the “zero” icon on the User Interface (moving the carriages manually can be done by using the corded gamepad or the wireless gamepad, the arrow keys on the Jog Tab of the display, or by entering the corresponding G-code commands into the MDI field of the Tabbed Section of the CONTROL Page).
Welcome to the forum!
PS: I don’t use Fusion360, but many users here do, I think someone will tell you where you set your point of workpiece origin!
It is posdible to set a start point in f360.
Ive thought about doing this when the starting point is in an area that may cause an issue with the look of the final product, but never have .
This link or a more recent solution may help. Give it a google. F360 entry point.
@shawnalakai
If you have this figured out already great, if not sorry for the redundant info.
There are three origins to think about when using Fusion 360 for CNC.
Design space (the actual sketching process in Fusion).
Manufacture Space in Fusion 360.
The CNC machine, Touch Probe, manual jogging, whatever.
The model Origin in the Fusion design Space has no direct correlation with the CNC machine cutting origin. You will use the Manufacture space in Fusion to set the origin that will be expected by the CNC machine.
When creating a Setup Process in Fusion’s Manufacture workspace you will define the Stock that will be used during the cutting process. Here is where you will decide where the to put the point the the machine will use as a starting point.
When I model I use an Origin point that works best for a given model and it’s parts. However, when creating tool paths for individual models/parts, most of the time I use the lower left point because it is easier for me. So I move the start point to that corner in the Setup in the Manufacturing workspace.