{"id":326,"date":"2024-06-05T19:35:36","date_gmt":"2024-06-05T19:35:36","guid":{"rendered":"https:\/\/diyprp.com\/?p=326"},"modified":"2025-05-01T05:00:52","modified_gmt":"2025-05-01T05:00:52","slug":"diy-centrifuge","status":"publish","type":"post","link":"https:\/\/diyprp.com\/en\/diy-centrifuge\/","title":{"rendered":"Homemade Variable Angle Centrifuge"},"content":{"rendered":"\n
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Creating a cost-effective and efficient centrifuge for platelet-rich plasma (PRP) preparation is a challenging task. Commercial options for similar variable angle centrifuges of this size often cost around $4,000. However, this homemade centrifuge achieves the same essential functionality at a fifth of the cost, coming in at just $720. This centrifuge was designed to spin large 60 mL syringes and uses a variable angle rotor, which offers superior performance compared to fixed angle designs. Additionally, it was built using readily available materials significantly reducing development time, effort, and cost.<\/p>\n\n\n\n

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Spun whole blood, now with separated layers, and the water counterweight.<\/figcaption><\/figure>\n<\/figure>\n\n\n\n
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Design<\/h2>\n\n\n\n

The centrifuge was meticulously designed using TinkerCAD, a free and accessible 3D design software. The CAD project<\/strong><\/a> is available on TinkerCAD<\/strong><\/a> for anyone interested in reproducing the design. Key material choices were made to simplify construction and minimize costs. The housing is made of composite 15 mm MDF, and the inner chamber utilizes a 40 cm aluminum cooking pot. These choices not only reduce the number of parts requiring machining but also ensure that the construction remains straightforward and accessible.<\/p>\n\n\n\n

The rotor was laser-cut from a 16 mm aluminum plate and finished by hand, allowing for four separate swinging buckets. These buckets were made from 50 mm PVC tubes, providing a sturdy and reliable solution for holding the syringes.<\/p>\n\n\n\n

Design Criteria<\/strong><\/h4>\n\n\n\n
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  1. Cost-Effectiveness:<\/strong> The total cost of $720 is significantly lower than commercial alternatives.<\/li>\n\n\n\n
  2. Ease of Construction:<\/strong> Utilizing MDF and an aluminum cooking pot for the housing and inner chamber.<\/li>\n\n\n\n
  3. Performance:<\/strong> Variable angle rotor design for superior performance.<\/li>\n\n\n\n
  4. Scalability:<\/strong> Designed to hold and spin 4 x 60 mL syringes.<\/li>\n\n\n\n
  5. Utilization of Existing Parts:<\/strong> Built off of a Kasvi K14-0815P fixed angle donor centrifuge, using the motor, base plate, motor control units, and display interface.<\/li>\n<\/ol>\n\n\n\n

    Materials and Costs:<\/strong><\/p>\n\n\n\n

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    • Donor Kasvi K14-0815P:<\/strong> $330 USD<\/li>\n\n\n\n
    • Rotor and Buckets:<\/strong> $260 USD<\/li>\n\n\n\n
    • MDF Housing:<\/strong> $60 USD<\/li>\n\n\n\n
    • Inner Chamber:<\/strong> $40 USD<\/li>\n\n\n\n
    • Various Hardware (latches, screws, gaskets):<\/strong> $30 USD<\/li>\n\n\n\n
    • Total:<\/strong> $720 USD<\/li>\n<\/ul>\n\n\n\n

      By following this design, you can achieve a highly functional centrifuge for PRP preparation at a fraction of the commercial cost, while ensuring reliable performance and ease of construction.<\/p>\n<\/div>\n\n\n\n

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      Centrifuge Demonstration Video<\/h3>\n\n\n\n
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