Recent content by Bobalony

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    Medical Medical Grade Plastics for Oxygen Delivery

    Hi Berkeman, She does have one of those machines in her room by her bed which she uses when she's in the room, but she spends most of her time "out and about" in the activity rooms. So she's mostly getting air from the tank on the back of her wheelchair. I would venture a guess at size D or JD...
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    Medical Medical Grade Plastics for Oxygen Delivery

    Hi everyone, I have a question about regulations for medical materials. I want to know if there are any sort of restrictions on what kinds of plastics and or other materials you can use for oxygen delivery. A bit of background on the question. My grandmother is in a nursing home and...
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    Sizing a DC motor to move a weight and counterweight

    This might be a silly question for some but I was wondering how do I size a DC motor to move a weight and counter weight? Suggestions for a better design are also welcome. I want to build an enclosure with an automatic door (simple limit switches and an arduino to flip the motor on and off)...
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