Author Topic: Are Servos Powerful  (Read 4116 times)

0 Members and 1 Guest are viewing this topic.

Offline tomnt12Topic starter

  • Beginner
  • *
  • Posts: 5
  • Helpful? 0
Are Servos Powerful
« on: April 24, 2008, 09:28:39 AM »
im an avid doctor who fan and im planning to build a 1/4 size dalek out of MDF anf HDF. i am planning to build a traingular base with RC to mount it on but i need to know whether servos are powerful enough (then which ones) or if i will need to use DC motors.
cheers
Tom
Logged

Offline Steve Joblin

  • Supreme Robot
  • *****
  • Posts: 405
  • Helpful? 2
    • Roebotz
Re: Are Servos Powerful
« Reply #1 on: April 24, 2008, 09:43:28 AM »
some servos are pretty powerful, but they can also get expensive... for something of the size and weight you are looking for, I would go with DC motors.

What are you an avid Doctor of?
Logged

Offline tomnt12Topic starter

  • Beginner
  • *
  • Posts: 5
  • Helpful? 0
Re: Are Servos Powerful
« Reply #2 on: April 24, 2008, 09:45:08 AM »
sorry i meant an avid "Doctor Who" fan the british Sci-Fi Drama
Logged

Offline benji

  • Supreme Robot
  • *****
  • Posts: 830
  • Helpful? 0
Re: Are Servos Powerful
« Reply #3 on: April 24, 2008, 11:18:37 AM »
cheap ones (10 $) gethya around 4 kg.cm
Logged
good ol' BeNNy

Offline superchiku

  • Supreme Robot
  • *****
  • Posts: 952
  • Helpful? 5
  • cooll
Re: Are Servos Powerful
« Reply #4 on: April 24, 2008, 11:39:38 AM »
4 kgf / cm is quite a good amnt its like 40 N/cm so it will work
Logged
JAYDEEP ...

IT AND ROBOTICS ENGINEER

"IN THE END IT DOESNT EVEN MATTER"

Offline tomnt12Topic starter

  • Beginner
  • *
  • Posts: 5
  • Helpful? 0
Re: Are Servos Powerful
« Reply #5 on: April 24, 2008, 12:09:12 PM »
im probably loking to spend £20 or servos (2 of them) and one cheap one to turn the front wheel for steering
Logged

paulstreats

  • Guest
Re: Are Servos Powerful
« Reply #6 on: April 24, 2008, 12:38:28 PM »
Maybe think abut using some light plastic to construct it with so it isnt too heavy. hdpe is as easy as machining mdf
Logged

Offline tomnt12Topic starter

  • Beginner
  • *
  • Posts: 5
  • Helpful? 0
Re: Are Servos Powerful
« Reply #7 on: April 25, 2008, 12:03:14 PM »
will do i was thinking of aluminium or hdpe for the base and styrene or hdf for the dalek
Logged

Offline Admin

  • Administrator
  • Supreme Robot
  • *****
  • Posts: 11,703
  • Helpful? 173
    • Society of Robots
Re: Are Servos Powerful
« Reply #8 on: April 25, 2008, 01:57:38 PM »
http://www.societyofrobots.com/robot_faq.shtml#select_motor

I'd second the suggestion of using DC motors (geared down).
Logged
 

data_list