Geeetech A10M Gradient Test Towers

Just some towers to test how gradients turn out. They come in two heights, feature groves which represent 10% steps in the gradient and a small indicator for the axes origins.

Contains Gcodes for the Geeetech A10M.

Approximate printing times and weights:
- Normal tower: 30 minutes, 5 grams
- Short tower: 15 minutes, 3 grams