roly poly Drop 01 · November
Yoyos No. 3

Bogong

No. 3 · Bimetal, stainless rims

A thin 6061 body with a ring of stainless steel set into each rim. Ten grams of steel per side puts the weight as far out as it can go.

A$169In the drawer · 2027
In the drawer · 2027 ⌀ 57.5 · 44.0 · 65.0 g

3 colourways, 3 places

Pick one up
  • GraniteLaterMount Bogong, Vic36.74° S · 147.30° Esolid · blasted · polished rims
  • MigrationLaterBogong High Plains, Vic36.90° S · 147.30° Esplash · four dyes
  • SnowmeltLaterThredbo River, NSW36.50° S · 148.30° Efade · polished rims

The Bogong, in section

44.0⌀ 57.5gap 4.35
Diameter
57.5 mm
Width
44.0 mm
Gap
4.35 mm at the pads
Weight
65.0 g built, with bearing and axle
Spin inertia
356 g·cm² 93% of it in the outer 30% of the radius
Material
6061-T6 with stainless rims bead-blasted, anodised
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

Bogong moths fly up to a thousand kilometres to the Australian Alps every spring. The Bogong is built for distance too: the aluminium is cut back to a 1.5 mm shell so the steel can carry the spin, and it has the most spin inertia of anything we make.

Inside the Bogong

Keep scrolling and it comes apart.

  1. Two halves · 6061-T6 with stainless rims · 31.1 g each
  2. Two stainless rings · about 10 g each
  3. Two pads · 19 mm slim
  4. Bearing · size C
  5. Axle · M4 × 10
Its printed twin

Print a Bogong first

Same outside, same 65.0 g in solid PETG, 82% of the metal one's spin. The files go up when it drops.

  • Metal65.0 g · cup lip at 25.47 mm
  • Print65.0 g · cup lip at 16.43 mm
  • PartsSize C bearing, two 19 mm slim pads, M4 × 10 set screw

The other three

All yoyos →