AI gear and gearbox design.
Planetary, strain wave, cycloidal and bevel gear sets, designed from a written request, checked like an engineer would check them, and ready to download as STEP.
No card needed. Then from €9.
Gear geometry that holds up
For the gear drive demo, the request was simply “An electric motor with two gears”. Luxxo CAD chose true involute teeth with module 1.5, 17 and 51 teeth for a 3:1 ratio, calculated the 51 mm centre distance, checked tooth interference at 0 mm³, and added a mounting plate, a 6001 bearing and the motor bolt pattern.
It checks the details that cause problems later. On the open bevel differential it flagged: “A 12-tooth pinion is below the undercut-free minimum for straight bevel gears; use profile shift or a spiral bevel set.”
Gearboxes made with Luxxo CAD
Two-stage planetary gearbox 36:1Gearboxes · 27 parts · 2.0 kgNothing supports the planet carriers, so they float on the gear mesh; bushes are recommended for long life.
Strain wave gear 50:1Gearboxes · 11 parts · 391 gAn S235 flexspline would fatigue quickly; quenched and tempered, shot-peened 42CrMo4 or 17-4PH is recommended.
Dual-disc cycloidal reducer 29:1Gearboxes · 63 parts · 5.8 kgThe 35:1 variant needs the eccentricity reduced to 1.0 mm to keep the disc profile free of undercut.
11:1 cycloidal speed reducerGearboxes · 34 parts · 2.58 kgS235 suits a prototype only; pins and discs need hardened steel (100Cr6, 58–62 HRC) for wear life.
Open bevel gear differentialGearboxes · 37 parts · 6.2 kgA 12-tooth pinion is below the undercut-free minimum for straight bevel gears; use profile shift or a spiral bevel set.
Questions
Does it use real involute gear teeth?
Yes. The gear drive demo uses true involute teeth with module 1.5, and the AI calculates centre distances from the gear geometry.
Does it check gear undercut?
Yes, gear undercut is part of the checks. For example, it flagged that the 35:1 variant of the cycloidal reducer needs the eccentricity reduced to 1.0 mm to keep the disc profile free of undercut.
Can I change the ratio afterwards?
Yes. Every model is parametric. Describe the change in one sentence, such as a new tooth count, and the design rebuilds; every version is kept.
Design your own in one sentence.
Describe a part or upload a hand sketch. 5 free designs, no card needed. Then from €9.