On a whim, I decided to make a 3D printer.  I spent the weekend with my brother creating this, and I have to admit we did end up hacking it a lot.

The result wasn’t too bad:

I admit it’s very messy.

But on the first try, I had the temperature too high:

I did start work on an auto calibration system by just crafting a gcode file that would create triangles at various different settings, with a GUI program to let you say which one was best, and then automatically iterating on the best version.

But I got an offer from someone wanting to buy the reprap printer as-is, so I sold it.

I’m very excited to see how the future of 3D printing pans out.