Hi, today I’ll share the differential I build using Fusion 360. This is an important piece for my retro excavator since it should be the hardest one to draw.
Here’s a general overview of the differential working:
Below you can see the video where I show the pieces and how I did them:
And Here are some photos:
Some stress testing
I did a couple of stress testing to ensure my design was good enough for my backhoe project and learn a lot from those tests, for instance, I quickly realized the wall of the inner differential was very thin so I ended up reinforcing it:
How I did do my stress tests?
Let’s say they are simple:
There’s a limit for PETG strength of course, and I also wanted to learn where the limit was, and this is the result :)
This was by far my most complex drawing so far, a lot of learning and excitement. I’m super proud of the result and how much Fusion 360 helped me to achieve it. Now let’s move to the next phase: the front direction system of the retro excavator!