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...- dkelly
- Post #16
- Forum: Mechanical Engineering
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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.- dkelly
- Post #15
- Forum: Mechanical Engineering
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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.- dkelly
- Post #7
- Forum: Mechanical Engineering
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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...- dkelly
- Post #5
- Forum: Mechanical Engineering
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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 vertical 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...- dkelly
- Post #3
- Forum: Mechanical Engineering
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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...- dkelly
- Thread
- Designing Machine Testing
- Replies: 16
- Forum: Mechanical Engineering