cad-agent.References · Gears in the catalogue · Markdown · JSON
References · Mechanical design
Gears
39 records: 0 read sources that cad-agent's rules and checks may cite, and 39 records catalogued from the Reference Map, not yet read. Spur, helical, planetary and printed gear trains.
Catalogued records are search snippets: their numbers are the authors' claims and their licences are as the map states them, unread. Cite one only after reading the source and promoting it (how).
Records
39 records
| Record | Kind | Evidence | Confidence | Licence | Process | Role |
|---|---|---|---|---|---|---|
| 3D-printable-bearing-generatorDAguirreAg Fusion script for printed ball races with bought balls. Fusion 360 script only; no load, friction or life numbers. | Open project | snippet only | low 0.4 | GPL-3.0not read | 3D printingInserts and fasteners | Lessons |
| 3D-printed-cycloidal-actuatorsirojudinMunir Step-by-step assembly images and parts list. No ratio, torque, materials or test data in the README text. | Open project | snippet only | low 0.4 | openMITnot read | 3D printingInserts and fasteners | Context |
| 3D-Printed-Cycloidal-Robotic-ActuatorLittleMooMooDingDingCow 17:1 and 25:1 with a STEP file. No test data; the 17:1 version is unmaintained and docs are partly external links. | Open project | snippet only | low 0.4 | openMITnot read | 3D printing | Lessons |
| 3D-Printed-Planetary-GearboxNikodemBartnik Includes a torque test stand (Arduino and Python); no results published. The stand is reusable for other actuator tests. No results published; video link is a placeholder. | Open project | snippet only | low 0.4 | licence unclearnot read | 3D printingCNC machining | Lessons |
| 3D-Printed-Strain-Wave-GearHasslerEngineering Hackaday Prize 2018 strain-wave gear. Old. No README; note says it is old. | Open project | snippet only | low 0.4 | licence unclearnot read | 3D printing | Context |
| Anti-Backlash Cycloidal ActuatorJelmerV Thesis project with raw test data. Anti-backlash designs cut play but add friction. Thesis prototype; the README gives no headline numbers, only pointers to raw data and notebooks. | Open project | snippet only | low 0.4 | not read | 3D printingSheet metal and laser | Reference |
| Anti-backlash cycloidal drives (Twente thesis)essay.utwente.nl Friction, backlash and stiffness against preload. Numbers not read. | Paper or thesis | snippet only | low 0.4 | licence unclearnot read | none stated | not assessed |
| CRAP cycloidal generatordashs20 build123d generator with collision checks and recorded clearances. No physical build shown; correctness is judged by collisions only; AI-written code. | Open project | snippet only | low 0.4 | licence unclearnot read | 3D printingCNC machiningInserts and fasteners | Reference |
| Cycloidal drive testing (forum)canadianhobbymetalworkers.com Delrin pins crushed after about an hour. | Forum thread | snippet only | low 0.4 | licence unclearnot read | none stated | not assessed |
| Cycloidal Drive V1 (zhangdong)zhangdong-cheku STEP and STL. The README claims zero backlash and 5 arcmin or less, and lists steel, 8.5 kg and IP65 specs that do not fit a printed part. Claims zero backlash and 5 arcmin or less; steel, 8.5 kg specs do not match a printed part. | Open project | snippet onlyAuthors' claim: numbers stated, not measured | low 0.4 | licence unclearnot read | 3D printing | Context |
| Cycloidal Drive V2 (zhangdong)zhangdong-cheku STL only. Dual-disc idea; test data not published. Qualitative claims only; no test data, ratio or materials stated. | Open project | snippet only | low 0.4 | openApache-2.0not read | 3D printing | Context |
| cycloidal_gearbox (tom-ilan)tom-ilan 9:1, 1.3 N·m and 66% efficiency with no method stated. 9:1, 1.3 N·m and 66% efficiency are stated without a test method; no licence. | Open project | snippet onlyAuthors' claim: numbers stated, not measured | low 0.4 | licence unclearnot read | 3D printing | Lessons |
| fabbearing (Jake Read)bio.cba.mit.edu Large printed cross-roller and ball bearing, Fusion file. | Open project | snippet only | low 0.4 | licence unclearnot read | none stated | not assessed |
| Faze4 robotic armSource-Robotics 6-axis arm with printed cycloidal gearboxes. STEP, STL and URDF. The page shows two licences. 'Low backlash' is claimed with no numbers; the arm is weak next to commercial arms. | Open project | snippet onlyAuthors' claim: numbers stated, not measured | low 0.4 | licence unclearnot read | 3D printing | Reference |
| FreeCAD_BearingsWBPraveenKum11 Standard bearing dimensions plus a printable race and cage generator. No load ratings. Boundary dimensions only; no load ratings, and printable bearing performance not tested. | Open project | snippet only | low 0.4 | GPL-3.0not read | 3D printingInserts and fasteners | Lessons |
| Fully 3D-printed gear drive (esk8 forum)forum.esk8.news Tight backlash fails; runout varies backlash. | Forum thread | snippet only | low 0.4 | licence unclearnot read | none stated | not assessed |
| gears (chrisspen)chrisspen OpenSCAD gear library: spur, herringbone, planetary, bevel, worm. OpenSCAD fork; no strength or fit data in README. | Open project | snippet only | low 0.4 | licence unclearnot read | 3D printing | Lessons |
| Harmonic vs cycloidal test (HowToMechatronics)howtomechatronics.com Printed torque, backlash and wear test. Results not read. | Article or blog post | snippet only | low 0.4 | licence unclearnot read | none stated | not assessed |
| HD20 printed harmonic driverobrotics 20:1 strain-wave drive with a cycloidal tooth profile. Load cell: 2.1 to 2.6 N·m, 48 to 58% efficiency, 18% unit-to-unit spread. Backlash not measured. Superseded by HDP30. Superseded by HDP30; README wrongly says HDP30 has no data; backlash unmeasured; it is strain-wave, not cycloidal. | Open project | snippet only | low 0.4 | not read | 3D printingInserts and fasteners | Reference |
| HDP30 printed strain-wave driverobrotics 30:1. STEP, DXF tooth profiles, Onshape. Load-cell test: ~0.03 degree backlash, held 1.49 N·m, 9,713 cycles at 1.3 N·m. Efficiency figures disagree on the page. Flexspline cracks at 1.5-1.67 N·m; only 9,713 cycles tested; efficiency figures differ across the page. | Open project | snippet only | low 0.4 | not read | 3D printingSheet metal and laserCNC machiningInserts and fasteners | Leader |
| HelicalGearPlusnico-schluter Fusion add-in: helical, herringbone, internal and worm gears. Fusion 360 only; README shows no tolerance or fit validation. | Open project | snippet only | low 0.4 | licence unclearnot read | none stated | Context |
| Hybrid polymer ball bearing with printed racesavesis.gazi.edu.tr Vibration and rolling resistance; concludes a limited-life bearing. | Paper or thesis | snippet only | low 0.4 | licence unclearnot read | none stated | not assessed |
| Internal-Cycloidal-Actuatoraaedmusa 8:1, popular reference build. README is a short description with one image; no test data or build guide. | Open project | snippet only | low 0.4 | licence unclearnot read | none stated | Lessons |
| Internal-Cycloidal-Robotic-ActuatorKoshiroRobot One clean STEP and a BOM. No README was available; this answer rests on the summary alone. | Open project | snippet only | low 0.4 | openMITnot read | none stated | Context |
| Parametric ball bearing (MakerWorld 2108208)makerworld.com Printed races and cage with steel balls; load and life claimed. | Open project | snippet onlyAuthors' claim: numbers stated, not measured | low 0.4 | licence unclearnot read | none stated | not assessed |
| PLA slewing ring with wire racewayset-old.ippt.pan.pl Axial stiffness against FEA. Attribution to this URL not confirmed. | Paper or thesis | snippet only | low 0.4 | licence unclearnot read | none stated | not assessed |
| Planetary-Generatormateuszdrwal Tooth-count solver for planetary sets. README is only a URL; function and accuracy unverifiable. | Open project | snippet only | low 0.4 | GPL-2.0not read | none stated | Context |
| Printable linear bearing (RepRap)reprap.org Printed ball linear bearing iterations. | Open project | snippet only | low 0.4 | licence unclearnot read | none stated | not assessed |
| Printabot PTFE turntablesPrintabot Printed turntable using PTFE tube as the sliding race. 30 kg tested by the author; the 100 kg demo is not a rating. Load tests informal; the 100 kg run is explicitly not a rating. | Open project | snippet onlyAuthors' claim: numbers stated, not measured | low 0.4 | openMITnot read | 3D printingCNC machining | Lessons |
| Printed harmonic drive (MakerWorld 402774)makerworld.com 25:1, 5 N·m claimed, PETG. Snippet only. | Open project | snippet onlyAuthors' claim: numbers stated, not measured | low 0.4 | licence unclearnot read | none stated | not assessed |
| Printed slewing bearing (MakerWorld 217548)makerworld.com 64 mm roller slew bearing, 7 kg, little play. Snippet only. | Open project | snippet onlyAuthors' claim: numbers stated, not measured | low 0.4 | non-commercialnot read | none stated | not assessed |
| Printed thrust bearing (Bartneck, Laimer slew)bartneck.de Ball thrust bearing with drawing. | Open project | snippet only | low 0.4 | licence unclearnot read | none stated | not assessed |
| Slewing bearing (MakerWorld 32748)makerworld.com Tapered-roller geometry. | Open project | snippet only | low 0.4 | licence unclearnot read | none stated | not assessed |
| Sovol: printing gears that worksovol3d.com XY expansion; calibrate before setting backlash. | Article or blog post | snippet only | low 0.4 | licence unclearnot read | none stated | not assessed |
| Testing a printed cycloidal gearbox (Hackaday)hackaday.com 92% efficiency claimed by the author. | Article or blog post | snippet onlyAuthors' claim: numbers stated, not measured | low 0.4 | licence unclearnot read | none stated | not assessed |
| Theseus: printed friction torque limitertheseus.fi Slip torque differed from theory with poor repeatability. | Paper or thesis | snippet only | low 0.4 | licence unclearnot read | none stated | not assessed |
| TipTapMotorDarrenLevine 8:1 printed planetary in a 47 mm cube BLDC actuator. STL only. No torque, backlash or life data; needs a custom DirectServo PCB. | Open project | snippet only | low 0.4 | openMITnot read | 3D printingPCB and electronics | Lessons |
| wormgear (pzfreo)pzfreo build123d worm generator with DIN calculations and STEP export. README says it is AI-written. README says AI-written; checks are self-consistency, not full DIN certification or physical tests. | Open project | snippet onlyAuthors' claim: numbers stated, not measured | low 0.4 | openMITnot read | 3D printingCNC machining | Reference |
| XRobots CycloidalDriveXRobots Versions V1 to V4 and a strain-wave folder. README is only a title; nothing is verifiable from it. | Open project | snippet only | low 0.4 | openMITnot read | none stated | Context |
Role is the survey's judgement of a record within its class (leader, reference, lessons, context): not a quality grade. A single source, a search snippet, or untested judgement is what “low” means.