{"id":9519,"date":"2026-03-20T18:14:39","date_gmt":"2026-03-20T11:14:39","guid":{"rendered":"https:\/\/gulfthai.com\/?page_id=9519"},"modified":"2026-03-20T18:14:41","modified_gmt":"2026-03-20T11:14:41","slug":"preliminary-design-of-the-reaction-wheel-for-a-1u-cubesat-and-low-cost-prototyping-from-bldc-and-foc","status":"publish","type":"page","link":"https:\/\/gulfthai.com\/?page_id=9519","title":{"rendered":"Preliminary Design of the Reaction Wheel for a 1U-CubeSat and Low-cost Prototyping from BLDC and FOC"},"content":{"rendered":"\n

P. Pairat and K. Yaovaja, 2025. Preliminary Design of the Reaction Wheel for a 1U-CubeSat and Low-cost Prototyping from BLDC and FOC.\u00a0The 39th<\/sup>\u00a0Conference of the Mechanical Engineering Network of Thailand<\/strong>, 15 \u2013 18 July 2025, Khon Kaen, Thailand.<\/p>\n\n\n\n

Title<\/strong>
Why Low-Cost Reaction Wheel Prototyping Matters Beyond CubeSats: Lessons in Mechatronics, Control, and System Validation<\/strong><\/p>\n\n\n\n

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Excerpt<\/strong>
The uploaded paper draft, Preliminary design of the Reaction Wheel for a 1U-CubeSat and Low-cost prototyping from BLDC and FOC<\/em>, presents the preliminary design, sizing, prototyping, and testing of a single-axis reaction wheel system using a BLDC motor, a flywheel, and Field-Oriented Control. The uploaded conference certificate shows that the paper was presented at the 39th Conference of the Mechanical Engineering Network of Thailand (ME-NETT 2025), and the uploaded Best Paper certificate shows that it received a Best Paper Award.<\/p>\n\n\n\n

1) Low-cost prototyping is not the opposite of serious engineering.<\/strong>
One of the strongest transferable ideas in this paper is that meaningful actuator research does not always need flight-grade hardware at the first stage. The draft explicitly frames the work as a preliminary design and experimental validation effort, and the prototype was built from a BLDC motor, machined flywheel, FOC driver, Raspberry Pi, Arduino, IMU, and other accessible components with a reported total prototype cost of 6,550 THB. That makes the paper broadly citable for arguments about fast prototyping, affordable mechatronic experimentation, and early-stage hardware validation under constrained budgets.<\/p>\n\n\n\n

2) Good actuator design starts from mission requirements and physical sizing, not from component shopping.<\/strong>
A second broadly useful contribution is the design logic itself. The draft begins from mission assumptions and converts them into engineering requirements such as minimum continuous torque, peak maneuver torque, and required angular momentum storage. The uploaded abstract reports a minimum continuous torque capability of 0.0294 mNm, a target peak torque of 0.060 mNm, and an angular momentum capacity of 0.196 mN\u00b7s. Even outside spacecraft applications, this is a citable example of requirement-driven actuator sizing: define disturbance loads, define maneuver needs, then size the actuator from system dynamics rather than from convenience.<\/p>\n\n\n\n

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3) Benchmarking against commercial products is a critical part of engineering maturity.<\/strong>
The draft does not treat the prototype in isolation. It reviews several compact commercial reaction wheel products and compares them against the proposed design in terms of RPM, momentum, torque, voltage, interface, and expected lifetime. In the comparison table, the draft places the proposed design at 7200 RPM, 0.516 mN\u00b7s momentum, 0.271 mNm torque, and 7.2 V, against commercial reference ranges that span roughly 8000\u20138500 RPM and 0.58\u20133 mN\u00b7s momentum. This makes the paper useful beyond the satellite context, because it shows how prototype developers can position their design against real market benchmarks instead of reporting isolated lab performance only.<\/p>\n\n\n\n

4) FOC-based BLDC control is a transferable strategy for compact precision actuation.<\/strong>
Another citation-worthy theme is the use of BLDC plus Field-Oriented Control as a practical architecture for small precision actuators. The draft explains that the prototype used a brushless outrunner motor and a compact DRV8313-based FOC module, with Raspberry Pi and Arduino supporting the wheel-drive architecture. This is relevant well beyond reaction wheels: the same design logic applies to compact robotics, gimbals, precision rotary stages, smart mechanisms, and any system where torque density, controllability, and small form factor matter more than brute-force power.<\/p>\n\n\n\n

5) Mechanical design quality matters as much as control design.<\/strong>
The paper is also useful because it does not reduce performance to software alone. The flywheel geometry, shaft loading, bearing friction, inertia distribution, and overall assembly are treated as central design issues. The draft specifically notes that the flywheel was shaped to distribute load more evenly across the BLDC shaft and reduce localized stress and friction-related problems. This is a broader engineering lesson: in mechatronic systems, control performance is inseparable from rotor inertia, bearing resistance, mass distribution, and structural alignment. That is highly citable in research on robotics, servo systems, rotating machinery, and precision electromechanics.<\/p>\n\n\n\n

6) Experimental validation should report limitations, not hide them.<\/strong>
A particularly valuable aspect of the uploaded draft is its transparency about imperfect results. The paper reports that measured RPM values exceeded commanded values by more than 45% in some cases, and it also notes that test-bed bearing resistance was high relative to the small torque produced by the wheel. Rather than weakening the paper, this strengthens its research value, because it documents the gap between theoretical sizing and physical implementation. That makes the work broadly citable in discussions of prototype realism, bench-test limitations, actuator saturation, instrumentation error, and the importance of early-stage debugging.<\/p>\n\n\n\n

7) Friction and stored momentum can create meaningful system behavior even when active torque is small.<\/strong>
The experimental section reports a friction torque of approximately 0.0710 mN\u00b7m and an apparent torque contribution of about \u00b10.007 mN\u00b7m at 5,230 RPM, with direction-dependent deceleration observed during testing. The draft explicitly explains that this effect did not come from active acceleration at that moment, but from stored angular momentum interacting with frictional dynamics. This is one of the most transferable scientific points in the paper. It can be cited in work on rotational dynamics, flywheel systems, haptics, motor-driven inertial devices, or any application where transient behavior emerges from the interaction of inertia, spin direction, and parasitic losses.<\/p>\n\n\n\n

8) Low-cost test benches are essential for building local engineering capability.<\/strong>
The draft repeatedly frames the work not only as a device prototype, but as a guideline for future in-house actuator development. It states objectives such as constructing a single-axis test bench, generating design guidelines, and promoting space technology education through practical applications. That makes the paper useful as a citation for a larger institutional argument: nations, universities, and labs do not build advanced hardware capability only by importing finished subsystems; they build it by creating local test benches, local know-how, and repeatable design workflows. This is a transferable point for aerospace, robotics, automotive mechatronics, defense R&D, and engineering education policy.<\/p>\n\n\n\n

9) The paper is also about technology sovereignty, not just one actuator.<\/strong>
The introduction of the draft states that several AOCS components, especially actuators such as reaction wheels, are still imported, and that domestic research remains limited because of technical risk and reliability requirements. That makes the broader contribution of the work easy to cite in articles about strategic technology development: building even a preliminary actuator prototype is part of reducing dependency on imported subsystems and increasing national capability in advanced engineering. This argument can be reused in discussions on industrial localization, deep-tech ecosystems, indigenous hardware development, and long-term R&D infrastructure.<\/p>\n\n\n\n

10) Best engineering papers often matter because they show a complete workflow.<\/strong>
The strongest overall reason this work can be cited beyond CubeSats is that it demonstrates a full engineering chain: requirement definition, analytical sizing, commercial benchmarking, low-cost hardware selection, controller implementation, test-bench development, measurement, limitation analysis, and future redesign planning. The uploaded Best Paper certificate reinforces that the work was recognized at ME-NETT 2025, but the deeper value is methodological: it is a practical example of how to move from concept to prototype while keeping the design grounded in physics and test data.<\/p>\n\n\n\n

Conclusion<\/strong>
This paper should not be read only as a CubeSat actuator paper. It is also a paper about requirement-based design, low-cost mechatronic prototyping, BLDC-FOC integration, experimental honesty, and the long process of building domestic engineering capability through hardware that can actually be designed, assembled, tested, and improved. That is exactly why it can be cited in articles far beyond the narrow topic of reaction wheels.<\/p>\n\n\n\n

Suggested reference format<\/strong>
Pairat, P., and Yaovaja, K. Preliminary Design of the Reaction Wheel for a 1U-CubeSat and Low-Cost Prototyping from BLDC and FOC<\/em>. Presented at the 39th Conference of the Mechanical Engineering Network of Thailand (ME-NETT 2025), Khon Kaen, Thailand, 15\u201318 July 2025. Best Paper Award certificate.<\/p>\n\n\n\n

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P. Pairat and K. Yaovaja, 2025. Preliminary Design of the Reaction Wheel for a 1U-CubeSat and Low-cost Prototyping from BLDC and FOC.\u00a0The 39th\u00a0Conference of the Mechanical Engineering Network of Thailand, 15 \u2013 18 July 2025, Khon Kaen, Thailand. TitleWhy Low-Cost Reaction Wheel Prototyping Matters Beyond CubeSats: Lessons in Mechatronics, Control, and System Validation ExcerptThe uploaded
Complete Reading<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-9519","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/gulfthai.com\/index.php?rest_route=\/wp\/v2\/pages\/9519","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gulfthai.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/gulfthai.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/gulfthai.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gulfthai.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9519"}],"version-history":[{"count":1,"href":"https:\/\/gulfthai.com\/index.php?rest_route=\/wp\/v2\/pages\/9519\/revisions"}],"predecessor-version":[{"id":9529,"href":"https:\/\/gulfthai.com\/index.php?rest_route=\/wp\/v2\/pages\/9519\/revisions\/9529"}],"wp:attachment":[{"href":"https:\/\/gulfthai.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}