Can I use x-sim for any RS485 compatible actuator?

[tronicgr]

I think a serious parameter in choosing the correct motors is how much current are you willing to use. Here is a small comparison:

2 DC motors under load can reach 80A current requirements, meaning thinker cables even if its only for 12V
6 AC motors under load can reach 15A current requirements...

And that just a sample of the differences...

BTW, you may want to check SEW Eurodrive inverters... They support RS485 module addon for communication and easy setup. I have one but using the analog control inputs instead as its faster.


Thanos

[Riton]

Vibrations, just AC motor, BTK OFF


http://youtu.be/jHcSMXXXmD0

Vibration BTK LFE Motor AC Off


BTK LFE + AC motor!

[motiondave]

240v motors look great in movement.
However, whats the frame design are you using?
SCN5 are usually used for seat mover and not a full frame.
SCN6 move more weight on a full pivot balanced frame, but can be costly.
Hence the suggestion of using 12v big worm gear motors and JRKs.
Cheap and low cost.

http://www.youtube.com/watch?v=Azz0fx5qebQ profiles quite soft, motors drawing about 20-25 amps at 13.8 volts.
http://www.youtube.com/watch?v=ZbN8XF027lc same motors on a previous frame, and drawing 32 amps plus.

Using thicker cables at a lower voltage is not a problem.

[sirnoname]

Looks extreme powerfull.
But as motiondave wrote: give a housenumber for that motors price!

[motiondave]

Looks extreme powerfull.
But as motiondave wrote: give a housenumber for that motors price!

Pardon? What do you meam a housenumber?

[motiondave]

Also, for reference, you could use any actuator that has a 15-20mm pitch in it for speed.
For reference, you can refer to this thread on some re-motored brick spreader actuators I have.
I made a feedback system for them, and put fast 12v motors, replacing the 240 v motors. I used a JRK as control.


viewtopic.php?f=36&t=605

If you find a fast actuator less motor , you could potentially do the same.

[nclabs]

Thanks, all of you guys, I really appreciate your support.

For motiondave: now I'm using a prototype with two SCN5 moving the seat only, it works quite good but I want something more. Now we are designing a full moving frame (seat, pedals and steering wheel), for now with 2DOF. We already done a prototype and we measured (with a dynamometer) that for moving the upper frame backwards and forwards we need a push of 15 kg (for a frame that weight almost 100 kg). The frame is sitting on a cardanic pivot joint, a big one, and we are planning to use two SCN6 with 40 kg of thrust each, but we don't know if that 200 mm/s of speed will be enough (my SCN5 are 400 mm/s).

I've seen all the videos you posted, and even if I have to say that I never tried a sim with AC motor, it seems to me a little bit different kind of movement. It seems to me very powerful but less precise when we talk about a little fast movement. Am I wrong?

This is a video of my current sim: http://www.youtube.com/watch?v=d1f6z5Q03CQ

BTW, I think that the sim by motiondave is the best I've seen with AC motors.

For the cost you have right, it's not cheap. I've made some math and two SCN6 will cost to me around 1500 euros here in Italy, but I prefear spent a little bit more to have the movement I want. I would like to try a AC motor simulator, but I don't think I have a chance to do it here where I live. Too bad.

[motiondave]

They are 12v motors, not 240v

seriously, the 12v 200 watts big worm gear motors are fast and powerful. Quite a few people have used them and found that out.

[nclabs]

They are 12v motors, not 240v

seriously, the 12v 200 watts big worm gear motors are fast and powerful. Quite a few people have used them and found that out.

So you are reccomending to get rid of SCN6 and get two worm gear motors? How much it will save approximately? I have still time to redesign the frame, but I don't want to go wrong.

[motiondave]

They are 12v motors, not 240v

seriously, the 12v 200 watts big worm gear motors are fast and powerful. Quite a few people have used them and found that out.

So you are reccomending to get rid of SCN6 and get two worm gear motors? How much it will save approximately? I have still time to redesign the frame, but I don't want to go wrong.

not recommending, just suggesting
You should be able to find a dayton equivalent on ebay.
Motors and gear boxes should be about $100 each.
Add JRKS at $100 each and you are off and racing.

I have added videos of how these things move on 2 different frames

http://www.youtube.com/watch?v=r2Y5kQyJ5vo
http://www.youtube.com/watch?v=ZbN8XF027lc
http://www.youtube.com/watch?v=Azz0fx5qebQ