Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: craigr1982 on May 26, 2009, 01:24:28 PM

Title: Not a robot but...Build help needed
Post by: craigr1982 on May 26, 2009, 01:24:28 PM
Hey there, first time poster.

I'm a PC Case Modder and I'm looking for some servo help for my new build.  Here's a quick animation of my idea.
 Photobucket (http://s71.photobucket.com/albums/i121/craigr1982/Medi-osity/?action=view&current=SketchUp_all.flv)

As you can see it has moving side panels, which I could use a servo arm / push rod to push the sides open.  Or I could use a rack and pinion style to slide the side open. 

Which would be best and easiest to control via PC.

Thanks for your help :)
Title: Re: Not a robot but...Build help needed
Post by: kpmcgurk on May 26, 2009, 02:46:03 PM
Try out this website, you can get some really great ideas with some of the products they offer!!!
http://www.servocity.com/index.html (http://www.servocity.com/index.html)


I personaly think that both of your options would work great, and it is depending on the amount of room that you will have inside the computer case.

This is a great Idea, Keep up the good work, and this is most certainly robotic!!
Title: Re: Not a robot but...Build help needed
Post by: craigr1982 on May 26, 2009, 04:22:51 PM
thanks :)

those fans would be 120mm, at a rough guess I'm looking at around 28 degrees of travel (rotation), and probably about 130mm of travel if it were on a rack and pinion.

no doubt I shall be picking your collective brains on this mod as the last time I played with servos I was about 10 with my remote controlled car.  so I'm a little rusty. hehe
Title: Re: Not a robot but...Build help needed
Post by: Admin on May 28, 2009, 02:41:33 PM
You'd probably want a linear actuator or worm screw actuator. This is because your motor will have to stay on and hold the position for long periods of time, probably until it fries.
Title: Re: Not a robot but...Build help needed
Post by: Soeren on May 30, 2009, 08:26:42 AM
Hi,

Just a word of caution. You might be creating a turbulence within the box where the 2 fans fight each other, with much less cooling action than what you'd assume. A bit of fan ducting could help avoid that.

If it's not supposed to be for looks/effect, a simple solution would be to spring load the "wings" and have a release button to open them. They could then be pushed in manually.
If it is indeed for effect, consider a sound generator making a noise like the sliding doors in Doom while they move ;D
Title: Re: Not a robot but...Build help needed
Post by: Admin on May 30, 2009, 08:30:50 AM
Quote
If it is indeed for effect, consider a sound generator making a noise like the sliding doors in Doom while they move
I was thinking of the sound the door in the delorean makes ;D

And who mods a case for practical reasons? :P

(http://www.bttfmovie.com/modules/images/2015/large/2015_delorean_c.jpg)

(http://i48.photobucket.com/albums/f234/PORSCHER/bttf.png)
Title: Re: Not a robot but...Build help needed
Post by: Soeren on June 02, 2009, 06:00:04 PM
Hi,

And who mods a case for practical reasons? :P
Overclockers mainly.
(Gee, I don't recall the sound of the deLoreans doors - have to pay attention the next time it's on the tube).
Title: Re: Not a robot but...Build help needed
Post by: buddhika on June 02, 2009, 10:39:56 PM
I think that rack & pinion is better for this robot.But it takes more space.So thinks another way to do this.