I'm an electronics guy, trying to build a robot.
Unfortunately, I never learned a lot about mechanics, and this appears to be
My current problem is:
How can I calculate the Power and Torque requirements for my motors?
What are the formulas, and what do I have to take into account (or keep in
Google doesn't seem to help me much on my quest!
Are there any good websites on mechanics / kinematics
or robotics in general? preferably with lots of tutorials / howto's :-)
Thanks in advance!
Do a google search for something like "ball screw calculation" and you will
find ball screw manufacturers like THK, Nook Industries, and others. Their
catalogs usually have "Application Engineeing" sections with calculation
formulas and examples. You can also download SEW Eurodrive's "Practical
Engineering" books (PDF file) on calculating how to properly apply their
gearmotors (an excellent, free resource). It's on www.seweurodrive.de (not
the US site) and you have to dig for the "Documentation" area, but it's
This should get you started on the road to defining torques which is a
tedious, time consuming affair. Once you have torques, then power
requirements to drive the torque (metric or otherwise) are
proportional....just have to dig for the formula.
Have fun ya electronic bit-head. Next time call your mechanical engineer
friends over and bribe them with beer. 8^)_) <gulp!>
Moe & The Boys
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