This week in engi 210, we were tasked with making a piece using the CNC machine, using an image from the noun project.

I chose the following image for my design.

I then imported the file into Carbide Create and made all the toolpaths. Due to the nature of my design, I needed different bit sizes for different elements. The swirls required a really tiny 1/32″ end mill, and this would take a whole lot of time. But I thought it was worth it, as shown in the results of the simulation below.

Next, I took the file into Carbide Motion, and proceeded to probe, set my zero and change the bit to the 1/8″ end mill for the initial pocket cuts. Then I changed it to the 1/32″ endmills to create the swirls (this process took 30 minutes per wood carving 😭🙏🏾) before changing it back to the 1/8″ end mill for the contour path.

My CNC pieces were finally ready!

I took them outside to post-process, by sanding with 120 grit sandpaper, and using compressed air to get out the wood shavings that had fallen into the swirls. Following this up with a stain. I chose a stain over spray paint to really highlight the raised vs cut out parts and I think it made a really cool effect!

 

Cost breakdown

3/4″ Wood

Cnc Machine Time

Labour