3D Print E Car - The learning car

Description of the teaching material:

Teaching car printed in 3D on a scale of 1:4 (front axle)

Ideal dimensions to observe the richness of the different technical elements that compose it.

Observations at standstill or in dynamic mode (motorised and roller-mounted front axle, as in a technical control)

Functions of a conventional vehicle : motorisation, transmission, suspension, steering and braking

Technical solutions easily transferable to current real models equipped with Mac Pherson

Observable technical solutions:

Steering column composed of two cardan shafts with opposing ball bearings and a steering wheel.

Rack & Pinion ball bush mounting, with two steering rods allowing the adjustment of parallelism.

Braking system complete with pedal, several levers, master cylinder with reservoir, hoses, pads, discs, calipers and pistons.

Rechargeable battery powering an electric motor

Electric motor driving a torque limiter which allows the gearbox to be disengaged when braking is activated.

Two suspensions composed of a shock absorber, a spring, a stub axle, a stub axle, a bearing

Pedagogical activities:

Discover the functioning of the whole and sub-assemblies.

Discover the transformation of movement, friction, efficiency.

Identify the different elementary volumes, the deformations (RDM calculation).

Analyzing complete links, the different mechanical links, the seals, the rotational and linear guides.

Carry out assembly of sub-assemblies and design or complete the assembly range.

Calculate the forces in graphical statics (crankset, connecting rod, lever, rack & pinion...), spring stiffnesses, pressures, reduction ratio, limiter tightening torque for a simulation of the clutch.

Making standard designations

Make adjustments (parallelism, torque limiter)

Strong points:

Feed a vehicle into the classroom (possibility to touch, measure and visualise the shapes and technical solutions of an entire front train)

Four sub-assemblies (Suspension, Steering, Braking, Powertrain & Transmission) to facilitate observation and understanding by disassembly/assembly operations.

Ability to operate motorisation, steering and braking at the same time

Digital pedagogy on tablets with auto-corrections

Provided with more than 30 teaching activities

References:

EC10+EC11: 3D PRINT ECAR, the educational car

EC11: 4x Suspension sub-assemblies

EC12: 2x Sub-assemblies Direction

EC13: 2x Braking sub-assemblies

EC14: 2x Motorisation and Transmission Sub-assemblies

Video :