Hey Guys, I'm new here, this is my first post. I am a member of other message boards, but they are primarily for fun. I think this board may acutally help me out with some of the work "opportunities" I run into now and again. First, I should tell you that I'm a ME, not an EE, so although this may sound simple to you, it's a stretch for me. I'm working on a project that requires a very small solenoid. By "very" small I mean that the max diameter is about .125". The length is not as important, so I'd say it could be 1" long. It will be powered by DC batteries. We're still trying to determine how much power will be available to actuate the solenoid. The plunger only needs to move .1" or so. So, now my questions: - Does anybody have experience with small solenoids? - Are there any suppliers that make them this small? - Are there any suppliers who can custom make them this small? (and have experience doing so) - Can I design this myself and build it using simple magnet wire and a power supply? - What type of core/plunger material will generate most force? - Is it better to fill the entire coil void with plunger, or can there be an air gap/space between them? As you can see, I'm a total rookie with respect to this particular component. Any guidance or help you can lend me would be greatly appreciated. Thanks, in advance.