Recent content by Taiden

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    Any good Thermodynamics resources?

    Hey guys, I should have posted here near the beginning of the semester. I'm in a Thermo class in a Mechanical Engineering program. I'm having a horrible time understanding the material. It doesn't seem difficult, but for some reason it's just not clicking. The textbook is extremely obtuse and my...
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    Acme leadscrew vs timing belt getting really high numbers

    THANK you for that post. Our engineering professors don't teach us how to solve problems, they teach us how to follow book steps. I never once considered using energy to find the solution but it's obvious now how easy and effective it is. I'm going to look more into this tomorrow afternoon when...
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    Acme leadscrew vs timing belt getting really high numbers

    I was ignoring that frictional forces at the screw will increase as the axial load increases. Anyone know how I can take this into consideration when I go to calculate the axial force produced at the nut with 30 in-lbs of torque at the screw? Here's the data sheet: nookindustries dot...
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    Acme leadscrew vs timing belt getting really high numbers

    Hey all, I'm on summer break so my engineering brain is almost completely turned off. So I would not be surprised if I am making some kind of silly error. I'm trying to compare different methods of linear positioning for a CNC project. ------------------------- Part 1 OK, so here's the...
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    Statics problem, determinate without moments, indeterminate with?

    Thanks Travis, I still really appreciate your post. It's always something trivial, isn't it?
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    Statics problem, determinate without moments, indeterminate with?

    I realized my error. Since it's a 3 force member you cannot assume that the reaction force is colinear to the member's length.
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    Statics problem, determinate without moments, indeterminate with?

    For what it's worth, I showed this problem to a few colleages and we all get the same result. T when found only with forces is double the magnitude of T found starting with moments.
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    Statics problem, determinate without moments, indeterminate with?

    Hey, thanks for the reply. You are right. But I didn't draw that in the problem just for simplicity sake. If you break R and T into components, when you sum forces you get:→ƩFx = 0 = -12/13 T + 4/5 R Solve for T = 13/15 R ^ƩFy = 0 = +5/13 T + 3/5 R - 180 180 = 14/15 R R = 192.9 Newtons T =...
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    Statics problem, determinate without moments, indeterminate with?

    Hey everyone. First time poster here. I was helping a friend do some Statics homework (I completed the course last Fall), and I ran into a really unsettling problem. I have done this problem over several times with the same result. When I do the problem only summing forces in the X and then Y...
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