My reproduction of CKAS 2DOF Motion Platform

hi , hello everybody , i'm french and i've been reading these forums for a few months now , and all these wonderful simulators projects made me want to build one myself too .
So i was searchin the web for the best possible design to build and i find out that the CKAS 2DOF motion platform would be the perfect one because i'm planning to use my system with FSX as principal game
with an enclosed cabin , so i collected as much as informations i can have about the CKAS 2DOF and started my project .

It's composed with :
- 2 x 550W AC motors with 14rpm and 0.75ch each (390nm) , 2 x omron j1000 frequency inverters , 2 x ppc27 10k ohms potentiometers and 1 x velleman k8061 (vm140) board .
- computer running x-sim : core i7 2600k@3,4ghz , 12GB ram , 3000gb hdd , GTX 460 768MB , Windows 7 64 bits .

i've build it with the exact same dimensions of the real one , motors have same caracteristics , and frequency inverters set to 100hz .

here are some pictures of it :





and a video of it in action with FSX with only pitch effect on motor 1 et roll effect on motor 2 to reproduce the exact slope of the plane as it is in FSX and with adjusting min and max pos/neg values for each axis in math plugin . no acceleration effects .

http://www.youtube.com/watch?v=FHoKt17IdVs

i'd like to do the exact same effect with nolimits rollercoasters but only acceleration value are extracted as far as i know , does anybody knows if pitch and roll can be extracted from that game as well , thanks .

Can't help you I'm afraid but just to say love what you've managed to produce. Looks brilliant.

Thank you very much

What about the reduction gear are you using?

regards

Hi , these are 550w 1400 rpm motors with 99,9 gear ratio reductors on them , so 1400/99.9 = 14rpm .

can i use other brand of inverters? no problem? theres some especification to order it?

regards

other thing is, can i use a encoder in place of the potenciometers?
Where did you get those belt between the gear and the pot? what the reason/diameter?

regards

Here's a new video this time with nolimits rollercoasters http://www.youtube.com/watch?v=hPKbjX6PfTI

Nice job there, perhaps a bit slow on the movement, but still a nice job.

hi, i m jay. i m also interested to build one simulation platform for my studies. i wish to know the material u use for center joint, and can u sent me the mechanical drawing of ur platform?

i m student from university teknologi malaysia, i just wish to simulate the platform using solidwork, i have tried a few design but it does not work, can u help me?

i attached my simulated picture for u.
http://www.mediafire.com/?uo2eu6r72e9u8r4
http://www.mediafire.com/?ug6tquu5z86uhoj

thank u very much!!!

my email address: getbacker_teoh@hotmail.com

hi,
I wanted to do a 4dof, rotating 180 degrees.
This card supports 4 frequency inverter?
what is the purpose 2 x 10k Ohm potentiometers ppc27?

Thank you!

hello,
yes the card supports 4 frequency inverter.

Thanks.

what is the purpose of potentiometers?

hello how are you? I'm doing a simulator like yours and I have a couple of questions, where you got the Velleman k8061 interface and frequency inverters? are very expensive? thank you very much good job

I assume the purpose of the potentiometers is determining the position of the motorarms.

The reason potentiometers are used here is because they give an analogue signal that the VM140 can measure. an alternative would be a rotary encoder but the VM140 can't work with these signals.

The Vellemankit costs around 120 euro's. For a good frequency invertor, for example the Siemens G110 0,75 kW you would pay aroung 200 euro's.

Hello lealjay,

Nice job on the platform. I am a teachter electrical engineering and last schoolyear I have build a racesimulator which you can in action here:

http://www.youtube.com/watch?v=q6HtIFWx ... re=mh_lolz

This schoolyear we are planning to build a new one that is based on the thruxim. I am planning to keep up the work on the new X-sim website (www.x-sim.de). Would you mind sharing some information on the mechanical construction of the platform?

Thanks in advance,
Bart

Hi Bart. You may have noticed it already but I have a forum thread requesting information on the exact model of motor and gearbox that CKAS use on the their T2s platform, as used on the Thruxim - http://www.x-simulator.de/forum/information-on-ckas-t2s-motion-platform-t3872.html?hilit=ckas. I have also started a similar thread on the x-sim.de forums - http://www.x-sim.de/forum/search.php?keywords=ckas.

If we can obtain this information then we can look at the best pricing available on the same SEW Eurodrive motor and gearbox (possibly R Series ?), either new or pre-used/reconditioned, and would also be able to see if there were cheaper alternatives available.

It would be worth your while monitoring these threads and if you're fortunate enough to source any info would you add it to one of these threads. Probably the one on the new x-sim.de site would be best.

Thanks

Hi , here are new pictures and a video of my 2DOF simulator this time with a full enclosed cabin built on his top . The cabin is actually empty but will be equipped with a short throw projector , 2 rally car seats ( left seat for racing and right seat for plane sim) , thrustmaster t500RS car wheel , saitek aviator joystick , saitek rudder pedals , saitek throttle quadrant .







http://www.youtube.com/watch?v=kAEQv9a81xw