How big the motor need?

[shanothegreat]

Have a look at these Motiondave http://www.motordrives.com.au/special_projects.asp

Check the right hand column under the picture titled "Movie Theater Chair Drives"

The motors are rated at 350 to 500 Watts and the gear ratios can be specified from 5:1 to 100:1

They are pricey at $380 per unit, but the specs and full metal hardened gears seem to offset this.

Shane

[motiondave]

Have a look at these Motiondave http://www.motordrives.com.au/special_projects.asp

Check the right hand column under the picture titled "Movie Theater Chair Drives"

The motors are rated at 350 to 500 Watts and the gear ratios can be specified from 5:1 to 100:1

They are pricey at $380 per unit, but the specs and full metal hardened gears seem to offset this.

Shane

Nice, they look like 240v units though.

[shanothegreat]

I spoke to the guys there about the specs. The ones pictured are either supplied as 12 or 24 volt hence the 350-500 Watt range.
I'll post the link with respect to the cad drawings when I find the rest of my notes.
From what I've read these would be the next step up from the ones from motion dynamics.
The gear ratios range from 5:1 to 10:1 in 2.5 increments, then from 10:1 to 25:1 in 5 increments, then 30:1 to 80:1 in 10's then 100:1.
Taking into account the length of the lever arm, angular velocity and hence current draw, an optimum gear ratio should be available.

[motiondave]

If they are 350 to 500 watts, you will not be able to run them on a JRK. I tested a 350watt motor on jrks and I had to run them at 40 amps continuous, too hight for a JRK.
Use an AMC or arduino and h-bridges.

[futuresims]

Hi,
go to these two links,

viewtopic.php?f=38&t=909

viewtopic.php?f=38&t=910

You will be able to calculate every aspect of your new Motion Platform.

Thank you