ProTruck crane
A crane that really lifts: turn the crank to wind the hook up, a ratchet holds it.
Dump truck generator Pro
A tipper with a rock body that tips back on a hinge and a hitch for trailers.
Open Dump truck in the app
Pro generator: explore its settings in the app; cut files come with the Pro plan (coming soon).
In short: Two-axle tipper truck with a rock body that tips back on a hinge pin, a cab over the front wheels and a tow hitch for the Vehicle trailers. Checked for collisions through the whole tipping range. No input drawing needed.
A two-axle tipper truck that rolls, tips and tows. The rock body tips back on a hinge pin at the rear of the frame, the cab sits over the front wheels, and a tow hitch at the back takes the free Vehicle generator's trailers. Everything scales from the wheelbase; no drawing is needed.
The design is checked for overlaps at rest and through the whole tipping range, and a side-view check keeps the body clear of the axles, the hitch and the ground as it rises.
It shares its chassis with the truck crane, and together with the excavator and wheel loader makes a construction set that fits together at the same scale.
You need: plywood, rod for the axles, dowel for the hinge pin, and glue.
Settings
All of these can be changed in the app, and the 3D preview updates as you type. The name under each setting
is its key in a share link, e.g. https://laserpuzzle.app/app/#/dump-truck?size=…; a link only
needs the settings that differ from the defaults.
Dump truck
| Setting | Default | What it does |
|---|---|---|
Wheelbasesize | 100 mm | Distance between the axles; everything else scales with it. 100 mm makes a truck about 19 cm long. From 70 to 400 mm. |
Wheel layerswheel_layers | 3 | Plates glued together per wheel, the outer one a blind cap: more = wider tyres. From 2 to 4. |
Tyre treadtread | on | Lugs round the wheels, offset layer to layer. |
Cab windowscab_windows | cut | Options: cut, engrave, none. |
Engraved detailsdetails | on | Hub caps, grille, lights, doors, fuel tanks. |
Cab protectorcanopy | on | Roof over the cab, reaching forward from the body. |
Hitch
| Setting | Default | What it does |
|---|---|---|
Tow hitch at the rearrear_hitch | on | Peg on a tongue behind the truck; a trailer's drawbar ring drops over it. |
Hitch heighthitch_height | 8 mm | Top of the tongue above the ground. Use the same value (and sheet) as the trailers made with the Vehicle generator so they couple. From 4 to 40 mm. |
Pins
| Setting | Default | What it does |
|---|---|---|
Pin diameterpin_diameter | 4 mm | Measured diameter of the dowel or rod used for every pin and both axles. From 2 to 8 mm. |
Press-fit hole offsetpress_fit | -0.1 mm | Hole = pin + this, where a pin is fixed (and in the wheels). Find it with the fit-test hole strip. From -1 to 1 mm. |
Pivot hole offsetpivot_fit | 0.05 mm | Hole = pin + this, where a part turns. Small = stiff, holds its pose; larger = swings freely. From -0.5 to 1 mm. |
Axle hole offsetaxle_fit | 0.2 mm | Hole = pin + this, where an axle or shaft turns, or a pin has to come out by hand. From -0.2 to 1 mm. |
Plus the material and machine settings every generator has: material thickness, kerf, slot clearance, sheet width, sheet height, part spacing, engrave part labels, cut line colour, engrave line colour.
