Bruce Nye

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Tuesday, May 31, 2011

250mm Travel Telescope

This is a 3rd development of the travel scope idea.

The main design requirements are to make the scope compact and lightweight so that it is easy to transport. A normal Dobsonian Telescope of this aperture is phisically quite large - about 1500mm high with a tube diameter of 300mm. This scope will colapse down to a box 250mm x 250mm x 230mm plus some aluminium struts about 1200mm long.

Shown here is the kit of parts prior to assembly.
My next post will show the assembled telescope!

Monday, May 30, 2011

VCarve Engraving - Mould Plug for Concrete Garden Sleepers

We have a need for garden sleepers for our new Vegie Patch!

I found a image of a wooden plank with a distinctive grain pattern, then loaded it into my CAM application to produce the tool paths. I then CNC cut the pattern of the "plank" into MDF. A fibreglass mould will be constructed from the MDF plank. The mould will be used to cast concrete sleepers for our garden.