looking for a linear motor

[fargo_182]

I'm looking for a linear motor, actuator, stepper. Anything that fits my requirements, and I need help from people who are familiar with these types of things. I have found videos on youtube of what i want, but no prices on websites nothing.

I need a linear motor that is about 6" to 12" of travel, doesn't matter. It has to move fast, hopefully can cover that distance in less then a second. And all it has to do is move from one end to the other as fast, or as slow as i need it to. Basically bounce back and forth.

I also need a controller for it.
All hopefully as cheap as possible, and in the 5lb to 10lb range.

Any help would be very much appreciated.
Thank you, Fargo

[Jason3]

Hi Fargo,

You might be able to do something with a boat trim tab actuator, if they were fast enough (I don't know how fast they operate, or whether you could speed it up easily (perhaps 24v instead of 12 ). http://cgi.ebay.com/ebaymotors/Brand...#ht_500wt_1374

A linear stepper would be cheaper than a linear servo. Sorry, no prices but you could ask these guys: http://www.h2wtech.com/stepmottor.htm

For linear servos, the I-force ones from Parker Automation are nice: https://buy.compumotor.com/e_search....nless%20Motors - they do have prices, and you can order online if you're feeling wealthy. The Parker Gemini drives are recommended for those. You'll need a linear encoder.

It would be worth figuring out what version you'd need and keeping an eye on ebay too - sometimes there's cheap, new linear motors with no drives. Grab a DRO scale encoder and something like the Granite Devices VSD-E drive to run it and you're set (that makes it sound so simple...

Regards,

Jason

Ps - I should say, I do have an affiliation with Granite Devices. There are other drives that will run them too, but I don't know of any in the same price/performance bracket, which is why I suggested them.

[fargo_182]

would a ballscrew be fast enough?

[Jason3]

Yes, I'd suggest a course pitch such as 20 to 25 mm. You might need a servo drive to get the speed, the right drive should also let you control it pretty simply with a PLC (for example).

Regards,

Jason

[the4thseal]

this might be out of left field how about a pneumatic piston. put the solenoid under computer control. sped is easy to control so is power. it just does not seem that "Control"
IS the top priority.thoughts?