This has been discussed, last time maybe 3 months ago, and actually some motors in some cases have been made this way. I believe the main reasons for this not...
... I seem to remember doing exactly that 40 years ago on a spaceflight (Apollo) mechanism. The shafts were mechanically coupled and the motors were wired in...
i noted inside omada promecam benders that they use timing belts around 50 mm wide to couple two ball screws.spacing is around 2m between the two ends of the...
... Wow !!!!!!!! I am so glad I found this group !!!!!! I have been asking electrical engineers this exact questions for the last two weeks!!!!!!! So far...
michael, perhaps you could reconsider using servo for small mills (proxxon sherline etc).the dynamic range of servos are unlikely to give a significant...
... Regular permanent magnet DC motors. The connections were paralleled and run directly from a DC supply. I wouldn't think there would be a problem in that...
the problem is that dc motors wired as you described,were not going to fight each other except on startup or slowdown.but for a dc servo system where the...
... Series sounds better than parallel. In series, the motors should equally balance the torque, and slight momentary back-EMF variations will not cause ...
jon,,,what do you mean sync the motors? two motors on 2 g320 and 2 encoders with a linking shaft, or two motos on 2 g320 and 2 encoders with no linking shaft? ...
... I think what the original poster wanted to do was have motors on both ends of the gantry, wire the motors together in some manner, and only have an encoder...
... one ... Wow ... Thanks so much for all the information !!!!!! My original question was just if two servo motors would move in unison with each other. I...
Hi all, newbie member here. I am building a 15' hovercraft, and I wanted to get some expert advice about the possibilities of using a fly by wire system for...
... I think its an awesome idea. I'm interested in seeing other ways to drive the steppers without using a computer and waiting for it to boot up and of...
After finally disassembling my linear actuator that I picked up off ebay, I discovered it had a weird motor. I'm not that familiar with motors and this one...
Hi Bryan ! I wouldn´t take that route ... just imagine your steppers stalling in the course of a tight maneuver ... your rudders braking loose ... a bit scary...
Steppers are also a special case of brushless DC motor. My understanding is that there are 3 coils in a brushless dc motor and 4 coils in the stepper but the...
... Hydraulics are also used in aircraft, and monster-trucks. I'm sure thats reliable and strong enough for a hovercraft too, and reliable not to lock up or...
"Steppers are also a special case of brushless DC motor." Well, no much so, Henry ... one cant drive a stepper from a DC power suply, to put it simply ... "My...
the project is awesome !!!!!!!!!!!!!! fly by wire still uses hydraulics. only that the pilot instructions pass to a central computer that triple checks that...
Here's the pics taken with my iphone. My understanding is there are coils and magnets in a brushless motor or a stepper and no brushes. Wikipedia says...
Thanks for the pictures Henry ! Im now convinced that its really a brushless DC motor ... the hall sensors are there to assure me ... You wont be able to run...
I wouldn't consider steppers to be the ideal choice, but if you sized them such that they could easily handle the worst-case load and acceleration (which...
Thanks Ray, and to everyone who has responded. Would you be able to recommend what I would need to look into this further? A Gecko drive, a servo, encoders,...
Bryan, Without knowing a WHOLE lot more about the requirements, I couldn't even begin to guess. You'll certainly need a high-voltage (typically 48-70V)...
Most people have covered the main issues. I build steer by wire systems for marine applications to class rules. Usually for marine, it's a wheel, or joystick...
From: "Bryan Kearns" <bryankearns@...> ... Hello Bryan, with all the safety concerns, is it absolutely necessary to use a true fly by wire system? I...
personnaly,i am convinced the JCB servo valves would the best job.simple, tenacious,can support tons of force.well proven design. it won't be fly by wire,more...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
