{"id":16960192,"url":"https://github.com/dflemstr/tradrack-led-stick","last_synced_at":"2026-02-12T08:05:02.071Z","repository":{"id":215928474,"uuid":"740064577","full_name":"dflemstr/tradrack-led-stick","owner":"dflemstr","description":"A simple PCB LED stick for adding indicator lights to an Annex Tradrack MMU","archived":false,"fork":false,"pushed_at":"2024-01-19T11:19:01.000Z","size":2567,"stargazers_count":2,"open_issues_count":0,"forks_count":0,"subscribers_count":2,"default_branch":"master","last_synced_at":"2025-09-11T14:48:12.496Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"OpenSCAD","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"gpl-3.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/dflemstr.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","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}},"created_at":"2024-01-07T12:25:06.000Z","updated_at":"2025-07-10T10:05:04.000Z","dependencies_parsed_at":"2024-01-19T12:34:28.413Z","dependency_job_id":null,"html_url":"https://github.com/dflemstr/tradrack-led-stick","commit_stats":null,"previous_names":["dflemstr/tradrack-led-stick"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/dflemstr/tradrack-led-stick","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/dflemstr%2Ftradrack-led-stick","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/dflemstr%2Ftradrack-led-stick/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/dflemstr%2Ftradrack-led-stick/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/dflemstr%2Ftradrack-led-stick/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/dflemstr","download_url":"https://codeload.github.com/dflemstr/tradrack-led-stick/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/dflemstr%2Ftradrack-led-stick/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":29361811,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-02-12T01:03:07.613Z","status":"online","status_checked_at":"2026-02-12T02:00:06.911Z","response_time":55,"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":[],"created_at":"2024-10-13T22:47:30.764Z","updated_at":"2026-02-12T08:05:02.056Z","avatar_url":"https://github.com/dflemstr.png","language":"OpenSCAD","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Tradrack LED stick\n\nThis is a mod for Annex Engineering's [TradRack][1] that enables the addition\nof LED light indicators for each filament gate/lane.\n\n![Rendered image of the v1 PCB](pcb/images/v1.png)\n\nSince the lanes are spaced at a 17mm pitch, there are no regular LED strips\nthat would fit a Tradrack with a large number of lanes (I myself use ~35 lanes),\nhence the need for this project.\n\nThis project is not an official Annex Engineering project and bears no\naffiliation with the Annex Engineering organization.  The project is licensed\nunder the terms of GPL-3.\n\nThere are various software options available for controlling these LEDs,\nfor example by using the [Happy Hare][2] software to control the Tradrack.\n\nFor now there's only a PCB design in this repo.  I might eventually add\nsome 3D-printable parts that aid in mounting the LED boards.\n\n## Fabrication\n\nYou can easily get the PCBs fabricated at various PCB shops.  I provide\neasy-to-use files for fabrication using [JLCPCB][3] in the `pcb/fabrication-outputs` folder.\nSimply upload the files to JLCPCB's assembly service and everything\nshould mostly just work.\n\n## Mounting\n\nThe PCBs are designed with a 17mm pitch which should match the Tradrack lane\nspacing.  You can join the PCB with a short piece of wire, a solder bridge,\nor a JST-XH straight-through connector.  The PCBs are designed with a 1mm\ngap between them to allow for some adjustment when aligning multiple PCBs,\nin case the lanes or the PCBs themselves have some imperfections.\n\n**Note**: The LED stick is designed to be adaptable to the [Voron Daylight Disco][4]\npinout.  However, due to space constraints (because the stick needs to maintain the\n17mm spacing), there isn't enough room on the board to solder a \"normal\" or \"flipped\"\nJST-XH connector.  Instead, take a vertical JST-XH connector, and bend the legs 90 degrees\ntowards the side of the connector housing that has 2 slots.  Then, solder the connector from\nabove onto the LED stick, letting it hang out over the side of the board.  If done\ncorrectly, the board will be pin-compatible with the Voron Daylight Disco board.\n\nHere are some photos of a finished soldering job for reference:\n\n![20240115_202112](https://github.com/dflemstr/tradrack-led-stick/assets/56029/b5a500d6-5f75-4bcd-a75d-aa4ad1fd122f)\n![20240115_202149](https://github.com/dflemstr/tradrack-led-stick/assets/56029/4bc44ddd-7924-4103-8111-fc83621e38a0)\n\nThe PCBs are also designed to be easy to cut at an arbitrary point without\ncausing a short.  Cutting the PCB between any two LEDs should be easily done\nwith a hack saw/rotary cutter/...  Just make sure to use appropriate protective\nequipment and maybe have a spare stick in case something goes wrong.\n\n### LED profile\n\nI am using a LED profile to mount the LED PCBs into.  The size I'm using is\nfairly common in hardware stores, with a 17mm outside width, 6.5mm thick\n(without the diffuser), and has a 12mm inner channel.\n\nTo mount the PCBs this way, I used thermal double sided tape (to aid with\nheat dissipation -- although it shouldn't be strictly needed) and then\nthe 3D printed mounting bracket in [`led-profile-holder`](./led-profile-holder).\n\nThis assembly can then be mounted at the front of the Trad Rack, in between the 2020\nand the cable chain.\n\nIt is also necessary to use low-profile M5 bolts for any parts that are mounted to\nthe front of the Trad Rack extrusion (the `idler_pulley_mount` and `motor_mount_lower`)\nif the filament lane modules are mounted in such a way that the corresponding LEDs need\nto be in front of these parts. I use [OpenBuilds low profile M5 screws][5], 8mm long.\n\nFor the cable chain anchor, a lowered version is needed.  I've included one in the\n[`led-profile-holder`](./led-profile-holder) directory.\n\nThere won't be any room for other front-mounted parts on the 2020 that stick out more\nthan 7mm.  For example, you can use [this mount][6] for an ERCF Easy BRD to mount the\nboard from the bottom of the extrusion instead of the side.\n\n[1]: https://github.com/Annex-Engineering/TradRack\n[2]: https://github.com/moggieuk/Happy-Hare/blob/main/doc/leds.md\n[3]: https://jlcpcb.com/\n[4]: https://github.com/VoronDesign/Voron-Hardware/tree/master/Daylight/Disco_on_a_stick\n[5]: https://openbuildspartstore.com/low-profile-screws-m5-10-pack-/\n[6]: https://www.printables.com/model/481199-ercf-easybrdcan-brd-mount-for-tr\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdflemstr%2Ftradrack-led-stick","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fdflemstr%2Ftradrack-led-stick","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdflemstr%2Ftradrack-led-stick/lists"}