Prytz / Hatchet Planimeter
A Prytz / Hatchet Planimeter, made in 2013, now with free PDF instructions in an updated and improved version. If you want to learn measuring areas with LEGO, this is the tool you need !
Specifications
- Model Size
- 23x10cm (35x25cm with the sheet)
- Color
- Gray
- Categories
- All, Free, Machine
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