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  • Users: AdamJ2
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  1. AdamJ2

    using a DC motor to control rpm of shaft

    Hello everyone, I am intending on buying a brushless DC motor and use it as a generator to get the electrical output from a 7mm rotating shaft by coupling it with the motor. I need to somehow test the power output at different rotational speeds of the shaft. Is there anyway or kind of brushless...
  2. AdamJ2

    Torque sensors for a small system

    Hello All, Is anyone aware of any torque measuring products or brands that are suitable to measure torque for a rotating 5mm shaft with only 100rpm and >30 N.m torque? I've been looking for a while but everything seems either prohibitively expensive (<$1000) or not suitable for my purpose...
  3. AdamJ2

    Bolting bearing

    Hello, I would appreciate if anyone can let me know what is the easiest way to bolt a bearing with 5mm ID and 16mm O.D onto a piece of wood so that it stays in place while allowing a 5mm shaft to rotate. I have attached a photo of the component if that helps. Would putting the bearing inside a...
  4. AdamJ2

    Rotation without sliding in a shaft

    Hello everyone, I have a relatively simple engineering problem and any insights would be highly appreciated. essentially, I have a 6mm shaft and a cylinder like shape rotating around it as shown in the digram and I am trying to test the ideal positioning of this cylinder. I was wondering if...
  5. AdamJ2

    mounting a box on a pipe

    Hello everyone, I have a 100mm diameter pvc pipe and I need to mount a plastic box or any water proof design to house some electrical components. The pipe will be submerged few meters deep in water which is why the water proofing is needed. Although this seems like a simple enough task I...
  6. AdamJ2

    Extracting energy from low pressure flow

    Hello Everyone, I would really appreciate if anyone has ideas on how to extract energy from low pressure flow. The situation is that I have horizontal water flow in a pipe with a working pressure of 1.5 bar and I need to figure a way to convert some of the flow into a useful energy form such...

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