[chbot] Robotics Group meeting, Monday 19 April 2021, 630pm, 5 Idris Road
markaren1 at xtra.co.nz
Tue Apr 20 00:38:17 BST 2021
Good turnout with 25 attendees, and lots of huddles-of tech-talk. $26 +
change (in gold, and flat-money) collected and transferred into the
robotics loose-change jar (for later banking).
All sales from the trading table should go into the brown box on the
wall, and are directly for the benefit of our host club, NZART Branch 05.
Equipment donations are welcome for the trading table, but no CRT based
product, printers, toner or items that are likely to be a disposal burden.
With thanks on behalf of the group,
Mark started the evening by talking about several items that may be of
interest. These included Alien-Art (derived from ‘(X ^ Y) % 9’, an
interesting Planetary Roller Screw design, and a Cable Robot. The latter
being an agile platform (with a seated person), which can be rapidly
moved in X, Y, Z space using tonne-rated steel wire driven by some
Levin talked about the construction of his low-cost video studio. Main
construction element was PVC piping which turned out to be a remarkably
versatile material to hold lights, camera, as well as the other items.
Charles brought in some 3D printed bearings he used to construct a 3D
filament dispenser amongst other items. He also discussed many different
approaches towards bearing design.
Graham talked about a science-fair presentation he helped his son work
on. Apart from rocket fuel mixing, he talked about presenting results.
Grahame talked about a graphite mould he fabricated using Electrical
Discharge Machining for Molten Media. The mould allows small insignias
to be cast using aluminium.
Geoff talked about his prototype ‘aircraft’ control surface. Features
included a bluetooth joystick controller for each hand. Lots of thought
involved in the design, a huge amount of stuff was learnt in the
process. Clever, interesting (and low cost) designed around lots of
Andrew brought in a several prototype 3D printed enclosures for his
multi-sensor devices. He also brought along his pi-laptop in a very
small footprint. Great finish, and well designed enclosure.
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