Right-handed coordinate system (small)
Created this for my robotics lecture/exam at university.
It should be small enough, so I can carry it easily in my pencil case.
Size: 35 x 35 x 35 mm
On every axis are rotational arrows placed, that point in the positive rotational direction of the respective axis.
Some small notes about the crosses and circles:
every axis is modeled like an arrow/dart. Every arrow/dart has a tip and an end where the feathers are placed.
A cross means, the axis is moving away from you (like if you would look at the end of an arrow with its feathers)
A circle with the point in the middle means, the axis is pointing to you (like looking at the tip of an arrow that is pointing to you)
- (See pictures for visual representation)
Thats the convention we learned at our university.
Update1:
Made an even smaller one (30x30x30 mm). Did not printed it, but should work.