Rookie here, have only had 1 project go successful and I am having issues with the CNC router after zeroing.
So I created a simple part to practice engraving/make sure I can do it in Fusion 360. I am using a stock piece of roughly 17" x 24" and trying to cutout a 12" x 12" square that is engraved. The code I made should engrave first and then cutout the piece.
In Fusion, I made the Part Position at the lower left corner, top of the stock piece. The part sits in the direct middle of the stock. After putting in all the information on the tool paths (aka engraving the pieces as well as the cut out of the piece). I save the code using the “NC Program” button.
Here is where the problem comes in. I squared the piece of stock in the CNC and used double sided tape to hold down the piece. I am using a BitZero V2 to probe the zero location of the bottom left corner of the stock. I then reset and save the zero location and get ready to run the job.
Once I tell the program to start, it prompts a tool change in which I do. It then goes to the silver cirlce, calibration button at the lower right side and does its normal function. Then it moves back to the “tool change location” and prompts me to turn the spindle on, in which I do (with a BitSetter). After that, the spindle moves to the lower left (away from zero) of the machine and starts running the program. So the X, Y, and Z are all away from the part (say -x from where zero should be, -y, and +z).
Can someone help me figure out why the machine is not taking in account for where I zero the part and where it should be cutting?
I have tried restarting the machine, the software, re-loading the gcode, re-saving the g-code, etc. with no luck.
I put the BitZero at the lower left corner with the “raised edges” off the side of the stock piece. Then told it to probe. While its probing I hold the BitZero just to make sure it doesnt move during the process.
So I took the BitZero off after it probed the Corner Setting (XYZ) and then set the Z manually in that position and that seemed to work.
Now I just need to figure out why Fusion’s gcode is not running the correct path, rather not cutting the area of the stock.
How familiar are you with Fusion 360? It has a steep learning curve, but once you get the hang of it, its excellent. Asking because there are a few “Gotchas” that creep up on you when create the Machining Setup step as well as the tool path.
IE: default in Setup is the stock rounding up to the nearest 1/2" which cause a 3/4" stock to be set up as 1". Thus often we see a tool that is trying to cut above the stock or cutting deeper than expected depending on WCS location.
IE: Is the WCS have the arrows for each axis in the right directlon? Is X and Y reversed?
Most of the time in Fusion, I model the exact size project I want. Then put an oversize board in and set my XYZ location a little bit inside the edges of the oversize board on the machine. Or even lightly draw where you want the project to cut out, then use that lower corner of the drawing to set XYZ.
Thank you all for the support! I think I figured it out. I had saved an incorrect NC Program and then saved the correct one on the same Model. I deleted the incorrect one and it didn’t work, but that lead me to delete all the tool paths and restart. Once I did that, the machine ran correctly!