Today we worked in the nursery splitting up gracilis and textilis bamboo for propagation. We made our own potting soil mixutres, one specifically designed for younger plants, which contains finely ground coconut husks, and another for more mature plants that had more wood chips and cinder.

We also recently learned how to properly sharpen a chainsaw. Chainsaws can be tricky to sharpen, but the best way is to first sharpen the cutting tooth with a round file, either following the same angle line indicated on the top of the cutting tooth, or at a 90 degree angle, to avoid hitting the tooth with your hands.

Here’s an image of a sharp cutting tooth:

and here’s a dull cutting tooth:

Note that the sharp cutting tooth has a straight edge, while the dull tooth is rounded.
Next, it’s important to file down the rake or depth gauge. If the depth gauge is too high then the chip size, which is based on the difference in height between the depth gauge and the cutting tooth, will be too small and the chainsaw won’t cut efficiently.
Always remember to wear protective gear when working with a chainsaw. We use protective eyewear, kevlar chaps, heavy gloves, and ear protection.
All photos © 2010 Dan Bloch
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