Recent content by dkelly

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    Designing Machine for Chew Toy Testing

    Dr. D, Thanks for the help on this particular project. I tried to attach a picture of the finished design but when I finally got the picture to under 300KB (jpg) the file would not upload. The customer accepted the machine and is running the parts unattended. I am currently helping...
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    Designing Machine for Chew Toy Testing

    Irian, I have been offline for a while. Are you looking for info on mechanical info or Computor Aided Manufacturing like Dr.D stated.
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    Designing Machine for Chew Toy Testing

    Dr. D I am proceding with the design. If I use 112lb (bite force at end of lever), Fc comes out to 90 lbs. The 110 in.lbs of motor is sufficient to give enough downward force. I now understand that Fc is the upward force of the cam. Thanks again for the help Dr. D.
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    Designing Machine for Chew Toy Testing

    Dr D. I calculated Fc. through the simple lever equation. However is'nt this force perpendicular to the center of rotation of the motor shaft. How do I know that the torque of the motor will be enough to exert Fc on the cam follower. Motor torque is 110 in.lbs. Here's where I get...
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    Designing Machine for Chew Toy Testing

    Thank you for your reply Dr. D. I am mainly looking to see if I have at least 220 lbs. in the verticle direction over the part. I redesigned the cam to only rise once and also decresed the sharp rise in the cam. This should help lessen the force of the pressure angles on the cam. Please...
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    Designing Machine for Chew Toy Testing

    I am designing a machine using a cam to generate a down force on a customers product (chew toy). The customer is wanting to try out different materials against his current production model. I was wondering if anyone could help me calculate the cam force in the veticle direction using a 110...
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