Getting started with Technic-style building
New to beams, pins, axles and gears? These guides help you choose a first build, explain the basic ideas in plain words and turn a model into a quick experiment.
25 guides
- Getting started
How does radar work? Time the sweep with a spinning radar build
How radar finds planes: a turning dish decides how often it looks, and the echo time gives the distance. With a lab and a motorized Technic-style radar build.
- Getting started
Why can a Technic-style rocker return faster with a steady crank?
Build an original four-bar timing bench, predict unequal crank arcs and compare ideal stroke times with a lab and a fair observation worksheet.
- Getting started
How does a Technic-style bell crank turn downward motion sideways?
Build a retained bent lever, predict unequal end travel and test direction changes with an interactive lab and a fair measurement worksheet.
- Getting started
Which way does the lower arm of a two-joint Technic-style linkage point?
Build a new retained two-joint arm, predict relative versus absolute angles and explore its tip position with a hands-on experiment and interactive lab.
- Getting started
Does a steeper ramp make a toy car go further? A ramp and friction experiment
Height sets how far a car rolls, not steepness. Test it with a Technic-style car, measure your floor’s drag number and predict distances in a ramp lab.
- Getting started
How can a Technic-style linkage move a bar without turning it?
Build a retained parallelogram linkage, predict its curved path and separate constant direction from straight-line movement with an interactive lab.
- Getting started
Why can a longer Technic-style pendulum arm swing more slowly?
Build a two-length timing bench, compare gravity leverage with rotational inertia and test ideal rod predictions against your own observations.
- Getting started
When do two marked Technic-style gears return to their starting positions?
Build a 24T/40T counting bench, predict the first joint return and explore repeated gear cycles with a hands-on worksheet and interactive lab.
- Getting started
Why can two Technic-style cranks turn together but reach their peaks apart?
Build a two-level crank bench, predict shared turns and compare starting offsets with a phase lab and a fair marked-angle observation sheet.
- Getting started
How can one Technic-style input drive equal-speed outputs in opposite directions?
Build two simultaneous gear paths, predict their opposite output directions and trace each contact with an interactive turn-count challenge.
- Getting started
Bevel gears worksheet: predict speed and direction around a corner
Corner gears count teeth like any gears, but which way the output turns depends on where each gear sits. A worksheet with three Technic-style builds.
- Getting started
Why do different Technic-style gear pairs fit the same axle holes?
Build two independent gear pairs at the same axle spacing. Predict which tooth sums fit, compare turn ratios and try a pitch-circle design lab.
- Getting started
How does a rack turn gear rotation into a controlled straight stroke?
Build a retained rack guide, predict quarter-turn travel and compare short trials while checking the supports that keep its teeth engaged.
- Getting started
How does pivot position change a hanging Technic-style beam’s return?
Build two independently swinging equal beams, compare their pivot holes and predict gravity torque without confusing it with speed or timing.
- Getting started
Why triangles make structures strong: a squish-test challenge
A square of pinned beams folds flat; add one diagonal and it locks. A five-round Technic-style challenge, with a lab that tests any frame before you build it.
- Getting started
Do larger Technic-style wheels turn faster on the same axle?
Build a two-wheel comparison bench, predict rim distance and separate equal axle turns from unequal millimetres traveled around each wheel.
- Getting started
Does a second Technic-style gear output change the ratio?
Build an original two-output gear bench, predict each branch’s turns and discover why a second load changes effort without halving the tooth-count ratio.
- Getting started
Why does a Technic-style crank move unevenly along one axis?
Build a new crank orbit bench, predict its 32 mm projected excursion and discover why equal angle steps give unequal straight-axis travel.
- Getting started
Why does a hand-spun Technic-style wheel slow down?
Build a retained coasting wheel bench, predict stopping turns in a simple lab and compare three gentle trials without confusing speed with energy.
- Getting started
How far does a Technic-style rack move when you turn its gear?
Build a new rack travel bench, predict millimetres from pinion angle and run a three-trial experiment within a reviewed short stroke.
- Getting started
Why do two Technic-style gear reductions multiply instead of add?
Build a new two-stage counting bench, predict its 25:1 reduction and test why gears sharing a shaft change the final turns.
- Getting started
Gear ratio worksheet: count teeth, predict turns and test a build
A hands-on gear ratio worksheet with worked examples, blank test records and answers. Compare two gear pairs using a free animated building guide.
- Getting started
How can a fast middle gear leave the final speed unchanged?
Build a 40–8–40 gear bridge, predict each shaft’s turns and use an interactive experiment to discover why an idler cancels from the final ratio.
- Getting started
Easy Technic-style builds for beginners: where to start
Six first builds for beginners, from a 5-minute roller to a pull-back racer, plus how to help without taking over.
- Getting started
How gears work: four builds to try
A simple way to explain gears, gear ratio and direction for beginners, with four hands-on builds and questions to ask.
Free builds for this topic
- 🚀 Easy Technic-style builds for beginners (40)
- ⏱️ Quick builds you can finish in 20 minutes (31)
- ✋ Builds without a motor (98)