Steam Roller toy with patterned rollers

This is a model I designed for the ToyCars competition.

Assembling the steamroller.

Start by printing

• Main body • Two wheels • Roller Axles • Rear Axles • At least one roller (smooth, hex, grid, herringbone, etc)

All 3mf files have parts separated for multi-material printing

Recommended print settings

• Layer height: 0.2 • Infill 15% Pattern: any structural (adaptive cubic, gyroid, cubic, etc) • Supports, brim, etc: not needed • Material: PLA

Step 1: Remove mouse ears.

The rear axle has some additional material to stabilize it when printing. After removal the axle should look like this

Step 2: lay out all parts to make sure everything's there

Step 3: Place hollow end of rear axle through the wheel and attach the hubcap

Step 4: Attach wheels to body

Step 5: Assemble slide in roller and attach the roller pins.

Caution: pins may get stuck if you assemble with excess force.

Step 6: Get some modeling clay or Play Doh and have fun

Design and description by Xorn , licensed CC-BY.