Mecanum wheels are omnidirectional wheels equipped with rollers angled at 45°, allowing a robot to move in any direction (forward, backward, sideways, diagonally, and rotate) without changing its orientation. When used in a 4-wheel configuration, they provide control over 3 degrees of freedom. These wheels are ideal for mobile robots operating in indoor environments, thanks to their high maneuverability and movement precision.
These wheels are designed for use with NEMA 17 motors. They are approximately 72mm diameter. On one side, there is a slot for locking in a flange, which can be rigidly connected to the motor shaft. On the opposite side, a bearing can be inserted, where a rivet rotates, passing through an element called the “Aligner.” A self-locking washer is placed between the wheel and the Aligner, ensuring a stable, play-free connection.
For assembling the rollers (TPU is racommanded), you’ll need M3 screws approximately 43 mm long (to be cut to size) along with their matching nuts. The two main parts of the wheel (you can use which filament you want, but ABS makes these pieces stronger) are held together by four 40 mm countersunk head M3 screws.
LINK TO THE SCREWS AND OTHERS DOWN BELOW!
If you are looking for the Omni wheel version, you can find it among my other 3D models on my profile, here
I hope you enjoy it! :)
🛡 License
All models are released under the Creative Commons Attribution – NonCommercial – NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
This means you are free to share the models under the following conditions:
Give appropriate credit to the creator.
Do not use the material for commercial purposes.
Do not distribute modified versions.
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Recipe for one Mecanum Wheel:
8 screw M3 x 45mm (to be cut to 43mm): https://it.aliexpress.com/item/1005008952546224.html?spm=a2g0o.productlist.main.1.1562sCbnsCbnOG&algo_pvid=af048ad2-3517-4934-91f0-1f262a55579c&algo_exp_id=af048ad2-3517-4934-91f0-1f262a55579c-0&pdp_ext_f=%7B%22order%22%3A%22404%22%2C%22eval%22%3A%221%22%7D&pdp_npi=6%40dis%21EUR%212.21%212.21%21%21%212.51%212.51%21%40211b431017554238740865573e21a0%2112000047350065682%21sea%21IT%216337607436%21X%211%210%21n_tag%3A-29919%3Bm03_new_user%3A-29895&curPageLogUid=RKz1UbkOuyvt&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005008952546224%7C_p_origin_prod%3A
4 screw M3 x40mm: https://it.aliexpress.com/item/1005007257158892.html?spm=a2g0o.productlist.main.19.4ff311e07eBxt3&algo_pvid=069f1842-e9b2-4ef1-b7c9-dec7dcac8d5e&algo_exp_id=069f1842-e9b2-4ef1-b7c9-dec7dcac8d5e-18&pdp_ext_f=%7B%22order%22%3A%22715%22%2C%22eval%22%3A%221%22%7D&pdp_npi=6%40dis%21EUR%212.14%211.89%21%21%212.44%212.16%21%40211b653717554243210005693e92bf%2112000039978063397%21sea%21IT%216337607436%21X%211%210%21m03_new_user%3A-29895%3Bn_tag%3A-29919%3BpisId%3A5000000178218344&curPageLogUid=7qqGQ5KLUGak&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005007257158892%7C_p_origin_prod%3A
1 bearing 4*8*3mm AND 16 bearings 3*9*4mm : https://it.aliexpress.com/item/1005007668446060.html?spm=a2g0o.productlist.main.3.3af4hlaLhlaLxF&algo_pvid=f73de101-20c9-46ac-bfd4-258eec3b1d5e&algo_exp_id=f73de101-20c9-46ac-bfd4-258eec3b1d5e-2&pdp_ext_f=%7B%22order%22%3A%227358%22%2C%22eval%22%3A%221%22%7D&pdp_npi=6%40dis%21EUR%213.49%213.49%21%21%2128.54%2128.54%21%402103892f17554245051864021e3f51%2112000041725798019%21sea%21IT%216337607436%21X%211%210%21n_tag%3A-29919%3Bm03_new_user%3A-29895&curPageLogUid=WEVNQniNbfja&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005007668446060%7C_p_origin_prod%3A
16 Nuts M3: https://it.aliexpress.com/item/1005006470779106.html?spm=a2g0o.productlist.main.6.71412cd0iJBh9t&algo_pvid=4e2ddaf1-7e1a-43d8-a0e5-af48e53c9877&algo_exp_id=4e2ddaf1-7e1a-43d8-a0e5-af48e53c9877-5&pdp_ext_f=%7B%22order%22%3A%22928%22%2C%22eval%22%3A%221%22%7D&pdp_npi=6%40dis%21EUR%212.92%211.35%21%21%2123.85%2111.02%21%40211b80d117554249638291125ec70f%2112000037316465285%21sea%21IT%216337607436%21X%211%210%21m03_new_user%3A-29895%3Bn_tag%3A-29919%3BpisId%3A5000000178211502&curPageLogUid=qGjyOlvatxya&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005006470779106%7C_p_origin_prod%3A
1 Rivet M4 x 25mm: https://it.aliexpress.com/item/1005005317279195.html?spm=a2g0o.productlist.main.58.7c293b37PRRmOH&aem_p4p_detail=20250817030652356150170265610003878569&algo_pvid=c0f88e5c-25f1-4895-b37c-ba818f61193c&algo_exp_id=c0f88e5c-25f1-4895-b37c-ba818f61193c-55&pdp_ext_f=%7B%22order%22%3A%224%22%2C%22eval%22%3A%221%22%7D&pdp_npi=6%40dis%21EUR%212.36%212.36%21%21%2119.29%2119.29%21%40211b612817554252121002226ef209%2112000032606140165%21sea%21IT%216337607436%21X%211%210%21n_tag%3A-29919%3Bm03_new_user%3A-29895&curPageLogUid=gcjvX2Pv48tw&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005005317279195%7C_p_origin_prod%3A&search_p4p_id=20250817030652356150170265610003878569_14
