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wheelshape to run on top of a circular rail?

a pair of circular pipes exists, running in parallel. I wish to use them as tracks for a small railcar. where to buy wh...
9 comments posted 20yrs
posted by dances_with_barkadas
9 comments posted 20yrs posted by dances_with_barkadas

Re: Heatsink cooling

> Let's say that I have a source of about 800-1000 watts (two dual IGBTs > inverting 200 amps). They should run relativ...
10 comments posted 20yrs
posted by onehappymadman
10 comments posted 20yrs posted by onehappymadman

Windmills

Could a windmill structure be constructed in such a manner as to house two windmills on the same tower stucture? An arm...
7 comments posted 20yrs
posted by sugna41
7 comments posted 20yrs posted by sugna41

Salaries of Engineers

The latest figures for the salaries of scientists including engineers have been posted at http://www.jupiterscientific....
1 comments posted 20yrs
posted by jspub2003
1 comments posted 20yrs posted by jspub2003

Help on CNC Milling Machine

I need information, materials on fundamentals, and parts of CNC Machines.I am in need of these urgently. I need the help...
2 comments posted 20yrs
posted by degbola
2 comments posted 20yrs posted by degbola

Ring Cam / Reverse Cam / Inside Out Cam

I'm not all that knowledgeable about machinery so I'm guessing it has already been done. It might even have a different...
6 comments posted 20yrs
posted by BretCahill
6 comments posted 20yrs posted by BretCahill

Fatigue Limit vs No Fatigue Limit Materials

Unless you could control the stresses to always be below a certain value, there isn't necessarily any advantage to usin...
1 comments posted 20yrs
posted by BretCahill
1 comments posted 20yrs posted by BretCahill

Looking for a mechanical vibration table

Does anybody in this forum know where I can find a vibration table based on a mechanical principle. Amplitude should be...
0 comments posted 20yrs
posted by jeboni
0 comments posted 20yrs posted by jeboni

Second moment opf area/buckling

I'm an optical/electronic engineer/physicist trying to do a structural calculation for experimental equipment design. W...
3 comments posted 20yrs
posted by Xh.ruttX
3 comments posted 20yrs posted by Xh.ruttX

Instrument bearing static friction?

I'm an electronics guy playing around with an instrument design that uses light weight 1mm diameter s/steel cable to ro...
6 comments posted 20yrs
posted by rdsfal
6 comments posted 20yrs posted by rdsfal

Basics of Mechanical Engg

What books or internet resources would you recommend to revise the basics of mechanical engineering?
4 comments posted 20yrs
posted by sweattowin
4 comments posted 20yrs posted by sweattowin