Week_7 Assignments

Group assignment:

Our group assignment was to characterize the properties of the milling process. We tested runout, fixturing and some toolpaths.

Individual assignment

Let's just we need to design and mill something BIG ^^.

Group assignment

As for my role in the group assignment I tested the runout and the cross joint using T-bone. We were encoraged to use ArtCAM but for some reason I had some errors installing it so I used Fusion manufacturing workspace.

I ignored this massage at first and made my way through the settings but after I finished all the steps of setting up my toolpathes when I needed to save the toolpathes as .nc file I didn't find the post processors.

Testing

For testing the runout I turned to Autodesk Fusion 360 to go through the CAM workflow instead of Artcam. So I designed a simple workpiece that contains three profiles and have a thickness of 6mm:

A profile is to be made a pocket with depth of 3mm.
A profile is to be cut all the way.
A profile for the outline.

As for the cross T-bone joint I designed in also in fusion and used the manufacturing workspace to output the .nc files that contain the g.code.

After the design I move to the Manufacturing Workspace in Fusion and here is how I managed to get the .nc files or the toolpathes.

First I prepared the setup for the manufacture. This where you add your machine if you have it, edit up your stock, select the operation you will make which here is "milling" and define the origin of the stock.

After that we need to choose the processes to be made along with some setting like the cutting tool, step over and multiple depth . Like for the runout test there are 2 main processes:

2D Pocket: this where we want to cut/scan a depth of 3mm.

2D Contour: this is for the inside all the way cut and the cutting of the outline.

As for the T-bone cross joint the process are only one process which is 2D Contouring.

I used the following setting foreachg of these processes:

I used a 3mm endmill for the cutting tool. and chose the default setting for the rough aluminum profile. it did great with the 6mm MDF.

For the step over I choose a value of 1.8mm.
For the multiple depth I allowed it and made the steps in 1mm.

After i done that I simulated the toolpathes.

Now after the simulation and making sure that everything is okay ^^. I exported/ posted the .nc files using the g.code icon.

Then choose the operation to include in the g code file and the post processor that is compatible with the machine.

then I used OpenBiulds to control China Router via USB cable I fixed the workpiece on top of the sucrificial piece. Then Homed the x and y axes and then turned on the spindle and carefully heard the machine until a buzzing sound started that is z zero.
Finally I Hit Run job ^^.