Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: alexander on April 24, 2008, 11:35:30 AM

Title: Solenoids - where can I find?
Post by: alexander on April 24, 2008, 11:35:30 AM
Hi.

Sorry for my horrible english.

I need some solenoids, but seems impossible to buy one... I just can't find it.

Where can I find solenoids? What kind of equipment have this?

[]s
Alexander
Brazil - Rio de Janeiro
Title: Re: Solenoids - where can I find?
Post by: AndrewM on April 24, 2008, 01:23:56 PM
First page  on a google search:  http://www.solenoidcity.com/
Title: Re: Solenoids - where can I find?
Post by: airman00 on April 24, 2008, 02:51:39 PM
electronicgoldmine.com   had some a while back , check if they still have solenoids

what do you plan to use the solenoids for?
Title: Re: Solenoids - where can I find?
Post by: alexander on April 24, 2008, 04:19:23 PM
Hi.

In Brazil we don't have shops like solenoidcity.com, so... I need find something in old equipments.

I need one for a small cd changer project. I need to push/pull a small piece to force a pick to 'capture' one CD.

Here's a video of my needed: http://www.nautae.eti.br/solenoid_arm.wmv

Any better sugestion is welcome.

In fact, I really need a better idea...

I made two versions of a cd changer, but both using stepper motor to pick a CD. It's very heavy and turn unstable all the mechanical system.

Now I'm working on a new version, small and more simple.

Here's my OLD first version:

http://www.nautae.eti.br/videos/show_passolino_1_320x240.mpg

And here's a focus on the OLD pick:

http://www.nautae.eti.br/videos/explicacao_passolino_2_320x240.mpg

[]s
Alexander
Brazil - Rio de Janeiro
Title: Re: Solenoids - where can I find?
Post by: airman00 on April 24, 2008, 05:11:59 PM
just put a mini servo on it and have the arm of the servo turn and push down

Title: Re: Solenoids - where can I find?
Post by: alexander on April 24, 2008, 06:40:10 PM
Sorry, I didn't understand.

Is there some example?

Keep in mind that the arm is too small and must do a precise job.

Other, I can't use two motors at the same time (is a project problem). In other words, if I use the left/right movement (rotation motor), I must release the electricity of the pick motor, and it's must still given some 'pressure' on CD (using a coil or something like this).

[]'s
Alexander
Brazil - Rio de Janeiro
Title: Re: Solenoids - where can I find?
Post by: alexander on April 24, 2008, 07:02:59 PM
Hummm... I think I understand now...

Seems the perfect solution...

I'll try.

Thank you very, very much!

[]'s
Alexander
Brazil - Rio de Janeiro


Title: Re: Solenoids - where can I find?
Post by: airman00 on April 24, 2008, 09:27:12 PM
no problemo    ;D   , I love it when people are polite and say thank you    ;D   ;D

if you need any help implementing the servo or any other advice with your design, feel free to post it and I'll get around to it