Examples
Real flights, circuits, flames, mechanisms and parts, each run with Wobbl, and every number here comes from that run’s own output.
AntennasAntenna 2.4 GHzIs this 58 mm dipole tuned for 2.4 GHz, and does the link reach across a 25 m office?OK 2,395 MHz
AntennasAntenna PCBDoes the trace antenna resonate at 2.4 GHz, and what is its S11 and gain?FAILS 2,640 MHz
SoundSpeaker boxWhere do standing waves form in the air inside the box below 1 kHz?OK 331 Hz
MagneticsSolenoid actuatorDoes the plunger pull 5 N at 0.8 A?OK 6.22 N
BoardsPCB buck ringingHow hard does the switch node ring with this layout?MARGINAL 5
ChemistryCaffeineWhat does caffeine's structure and IR spectrum look like?OK 3.98 D
ChemistryThermiteHow much heat does thermite release and how hot does it get?OK -850.4 kJ
ChemistryBaking soda and vinegarHow much gas does baking soda in vinegar make, and does it get warm or cold?OK 31.1 kJ
ChemistryCopper crystalWhat is copper's crystal structure and how stiff is it?OK 3.590 A
HeatCold plateDoes a liquid cooled plate keep 150 W of electronics under 60 C on 2 L/min of water?OK 34.2 C
HeatFan heat sinkDoes a 30 W chip stay under 85 C with a 10 CFM, 20 Pa fan blowing along the fins in a 40 C cabinet?OK 77 C
DropsHandheld dropWill this handheld survive a 1.2 m drop onto concrete with its 45 g battery?FAILS 68.1 MPa
YieldSteel hookWill a mild steel hook bend for good under a 3 kN sling, and what load pulls it open?MARGINAL 0.701x the load
CracksBracket crackWhere does a crack at the pin hole go, and do 99% of brackets last 100,000 cycles?FAILS 86,219 cycles
BoltsBolted flangeDo four M8 bolts tightened to 20 N m keep this flange closed under a 30 kN pull?HOLDS 12.6 kN
CompositesCarbon fiber drone armIs this carbon fiber arm strong enough for 120 N at the motor?HOLDS 5.17x load
CastingCast pulleyWill the hub of this sand cast aluminum pulley shrink and leave porosity?MARGINAL 2.2 min
PrintingPrinted lidWill this long ABS lid warp or lift its corners when I print it on an open printer?FAILS 3.81 mm
MotionRocket launchWill an L class rocket fly straight, reach 11,000 ft and land softly in a 10 mph wind?OK 3,439 m
MotionFalling rockHow fast does a rock hit the ground after a 300 m fall?OK 8.72 s
CircuitsCircuitsWill a blue LED on 5 V with a 47 ohm resistor fry?FAILS 36.9 mA
ChemistryPropane flameHow hot does a propane flame in air get, and how much CO and NO does it make?OK 2,266 K
MotorsKNSB motorWill this 54 mm KNSB motor hold its casing, and what thrust curve does it give?MARGINAL 4.14 MPa
MechanismsWiper linkageDoes this wiper linkage sweep 95 degrees, and can a 45 rpm wiper motor drive it over dry glass?MARGINAL 94.3 deg
MechanismsDesktop armCan these hobby servos lift a 500 g payload through this desktop arm's pick and place?FAILS 1.35 N m
BatteriesCell runawayCan a cell at the hottest point of the sealed battery pack run away on its own?OK 155 C
VibrationDrone arm resonanceDoes a printed drone arm resonate with its propeller anywhere between hover and full throttle?FAILS 30.4 Hz
BucklingStrut bucklingDoes a slender aluminum strut carry 7 kN with a factor of 3 against buckling?MARGINAL 3.25
FatigueMotor mount fatigueDoes the cast motor mount last ten years of starts and running without a fatigue crack?MARGINAL 16 repeats
StrengthCast motor mountDoes a cast motor mount meet a safety factor of 2 under a 2 kN belt pull?MARGINAL 124 MPa
StrengthShelf bracketDoes a printed PLA bracket hold an 8 kg shelf, and what fixes it?FAILS 52.3 MPa
StrengthMotor mountDo the ribs on a printed NEMA 17 mount earn their keep?HOLDS 11 MPa
StrengthEnclosureDoes a polycarbonate shell survive a thumb press, and how far does it dent?HOLDS 9.77 MPa
StrengthDrone armIs a printed PA12 drone arm strong enough at full throttle?HOLDS 9.46 MPa
HeatHeat sinkDoes a 15 W chip stay under 85 C without a fan?OK 70.3 C
HeatBattery packWhen does a pack in a sealed box pass 60 C?HOT 74.5 C