Rechenaffe - 'Consul' The Educated Monkey

thingiverse

Remake of a 100 year old patented toy. It is intended for kids learning to learn multiplication of small numbers. I've also added some photos of historic instructions for entertainment. The original name was 'Consul' - The Educated Monkey This version is for 3mm birch plywood. The svg has multiple layers to structure the construction. The 'laser' layer has all parts thrown together in a 200mm x 280mm rectangle. Enable one of the sub-layers 'english text' or 'german text'. There are far too many copies of the small pieces. The little rectangles server as axis in the joints. They are available in multiple widths, 3.8mm up to 4.2mm -- choose the one that gives a good pressfit and discard the rest. For best strength, make sure to orient the wood grain lengthwise. Some glue is needed to add the supports on the back of the base and to fix the top layer of the window. Everything else is supposed to work with press-fits but some minimal glue here and there would not hurt. The original patent is long since expired. I assume I am free to publish this remake here as a non-commercial item. The four files SVG files each contain all exactly the same drawings. The difference is only in the visible layers, for ease of use. Update 20190819: Added a german version for 3.5mm plywood. Update 20191015: Placed the small parts in containers