Dot exercise

Recently, I got this assignment in Arts class, in which I had to draw a tree in an A3 sized paper and use dots to render half of it, in graphite.

 Stimulating, right?

 After spending 3 hours making dots, I started to wonder if there was a way I could speed up the process of making so many dots... maybe replace the needle in a sewing machine with a pencil? (Not a good idea!)

After coming up with a few ideas and testing what worked and what didn't work, I decided to try this cordless jig-saw machine:

 Then, I taped a short pencil to the blade:

 And dot away!

 This worked really nicely, and I was able to finish the work in 2~3 hours, instead of the 5~6 hours it would take if I had made it by hand.

 Here's the final result (note that half of it was rendered with dots, and the rest with lines and mesh):

 I think I might use this again in future works :)