{"id":50387682,"url":"https://github.com/adamkdean/drivetrain-calculator","last_synced_at":"2026-05-30T16:01:11.527Z","repository":{"id":355800026,"uuid":"1229652815","full_name":"adamkdean/drivetrain-calculator","owner":"adamkdean","description":"Live drivetrain calculator","archived":false,"fork":false,"pushed_at":"2026-05-05T09:10:22.000Z","size":11,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"master","last_synced_at":"2026-05-05T11:09:49.126Z","etag":null,"topics":["drivetrain","gearbox","robotics"],"latest_commit_sha":null,"homepage":"https://adamkdean.github.io/drivetrain-calculator/","language":"HTML","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/adamkdean.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2026-05-05T08:58:37.000Z","updated_at":"2026-05-05T09:10:26.000Z","dependencies_parsed_at":null,"dependency_job_id":null,"html_url":"https://github.com/adamkdean/drivetrain-calculator","commit_stats":null,"previous_names":["adamkdean/drivetrain-calculator"],"tags_count":null,"template":false,"template_full_name":null,"purl":"pkg:github/adamkdean/drivetrain-calculator","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/adamkdean%2Fdrivetrain-calculator","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/adamkdean%2Fdrivetrain-calculator/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/adamkdean%2Fdrivetrain-calculator/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/adamkdean%2Fdrivetrain-calculator/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/adamkdean","download_url":"https://codeload.github.com/adamkdean/drivetrain-calculator/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/adamkdean%2Fdrivetrain-calculator/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":33698654,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-05-26T15:22:16.424Z","status":"online","status_checked_at":"2026-05-30T02:00:06.278Z","response_time":92,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["drivetrain","gearbox","robotics"],"created_at":"2026-05-30T16:01:11.008Z","updated_at":"2026-05-30T16:01:11.517Z","avatar_url":"https://github.com/adamkdean.png","language":"HTML","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Drivetrain Calculator\n\nDrivetrain calculator for robotics. Computes gearbox reduction and wheel/tread linear speed from a configurable multi-stage gear train.\n\n![Drivetrain Calculator](https://github.com/user-attachments/assets/ab2ebfdb-9b09-4ba4-ae06-a3aecd1b4f4c)\n\nView the [demo](https://adamkdean.github.io/drivetrain-calculator/).\n\n## Gearbox\n\nConfigurable gear train of simple and compound stages with a motor input RPM.\n\n- Stage ratio: `r_i = N_driven / N_driver`\n- Total reduction: `R = ∏ r_i`\n- Output speed: `ω_out = ω_motor / R`\n\nReports total reduction, mechanical advantage (`R`), output RPM, and stage count.\n\n## Wheel / Tread\n\nSolves `v = π · D · ω` for whichever variable is unlocked. Two of the three (`D`, `ω`, `v`) are locked as inputs; the third is computed.\n\n- `D` (wheel diameter): mm, cm, m, in\n- `ω` (wheel rotational speed): RPM\n- `v` (linear speed): mm/s, cm/s, m/s, km/h, mph\n\nWheel ω can be linked to the gearbox output, in which case it tracks the gearbox computation rather than accepting direct input.\n\nDerived outputs: circumference, time per revolution, RPS, and `v` in multiple units.\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fadamkdean%2Fdrivetrain-calculator","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fadamkdean%2Fdrivetrain-calculator","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fadamkdean%2Fdrivetrain-calculator/lists"}