Roly Poly No. 9

Budgie

No. 9 · Turned polycarbonate

Turned from polycarbonate at full size: 58 mm across, 45.5 wide and 62 grams. The clear ones are vapour polished until you can see the bearing spinning inside; there's black too, and a pair with one of each.

A$59
Coming soon ⌀ 58.0 · 45.5 · 62.0 g

3 colourways, 3 places

  • ClearwingBarkly Tableland, NT18.5° S · 136.0° Eclear · vapour polished
  • BlackfaceTanami Desert, NT20.0° S · 130.0° Eblack · turned PC
  • PiedChannel Country, Qld25.0° S · 141.5° Eclear and black · turned PC

The Budgie, in section

45.5⌀ 58.0gap 4.30
Diameter
58.0 mm
Width
45.5 mm
Gap
4.3 mm at the pads
Weight
62.0 g built, with bearing and axle
Spin inertia
266 g·cm² 72% of it in the outer 30% of the radius
Material
Polycarbonate turned; the clear ones vapour polished
Bearing
Size C (R188) 6.35 × 12.7 × 4.76 mm
Response
19 mm slim pads sit 0.05 mm under the wall
Axle
M4 × 10 set screw

A budgie is a budgerigar, the little green parrot of the inland, and breeders have turned it just about every other colour. Polycarbonate is tough enough to take a drop onto concrete, and light, so the body is deep and the cup small to get to 62 grams.