⚙ Mechanical Engineering

Positional accuracy for opto detectors

I want to use some IR opto transmitters and receivers to detect positions of a pivoting sector plate. The transmitter i...

5 comments posted 21yrs

posted by russelliott

5 comments posted 21yrs posted by russelliott

Thinking Outside The Box

...or maybe "Outside the Globe" would be more accurate. Bret Cahil has recently posted three different thoughts/questio...

18 comments posted 21yrs

posted by kg1

18 comments posted 21yrs posted by kg1

Solenoid valves v/s slanted seat valves

Hi all! I'd like to know the advantages of using slanted seat valves instead of solenoid valves. Thx Leo

1 comments posted 21yrs

posted by boo_love2

1 comments posted 21yrs posted by boo_love2

NBIC Exam

Hi, Anyone knows about NBIC exam? -- Please reply this, in the group.

0 comments posted 21yrs

posted by this dosnt work

0 comments posted 21yrs posted by this dosnt work

NIAC NASA's Advanced Concepts Program

www.niac.usra.edu If you can get stuff into space really cheap, they want to hear about it. Bret Cahill

0 comments posted 21yrs

posted by bretcahill

0 comments posted 21yrs posted by bretcahill

Ansys TCL/TK

How to unpick the selected points using tcl/tk in Ansys.

0 comments posted 21yrs

posted by sathishv2000

0 comments posted 21yrs posted by sathishv2000

Solving HW Geometrically Nonlinear Problem

Hi group, I need help on solving a geometrically nonlinear engineering problem. As the title states, it *is* a homework...

5 comments posted 21yrs

posted by gtg089b

5 comments posted 21yrs posted by gtg089b

CFC (Carbon Fiber Reinforced Carbon) Charging Plate

Hi everyone, > I am a Metallurgical and Material Science Engineer > and > want to discuss a subject, about the CFC mate...

2 comments posted 21yrs

posted by tuncy

2 comments posted 21yrs posted by tuncy

In place of powder coat?

It is getting to be very costly to truck our parts and subassemblies out of town for epoxy powdercoating, and installin...

3 comments posted 21yrs

posted by kthr33

3 comments posted 21yrs posted by kthr33

IEEE ICM'2004 Extended Call For Papers

====================================== IEEE ICM'2004 Extended Call For Papers ====================================== --...

0 comments posted 21yrs

posted by Kholdoun.Torki

0 comments posted 21yrs posted by Kholdoun.Torki

Synchronous motor questions

I did not mention in my previous post that the stepper motors I have on hand are SLO-SYN, a type of six-wire stepper mo...

0 comments posted 21yrs

posted by nospam

0 comments posted 21yrs posted by nospam

about crack propagation direction, pls. help, thanks,

Dear all, I am using FEM to simulate the 3D crack analysis. Assume that I already calcuated Stress Intensity Factor (SI...

0 comments posted 21yrs

posted by luwming

0 comments posted 21yrs posted by luwming

Looking for gear reducers for electric motors

Many electric motors come with gear reducers built in; some can even be ordered with one of several different gear rati...

1 comments posted 21yrs

posted by nospam

1 comments posted 21yrs posted by nospam

Variable speed electric motor questions

I don't know if sci.engr.mech is the appropriate newsgroup for this inquiry; if anyone knows a more appropriate group,...

14 comments posted 21yrs

posted by nospam

14 comments posted 21yrs posted by nospam

Getting Water Across the Great Divide

The Western states need to get water from a REAL river. What's the cheapest way to get Mississippi River water across th...

12 comments posted 21yrs

posted by bretcahill

12 comments posted 21yrs posted by bretcahill