2DOF simulator based on CKAS Thruxim

Running simulator build projects.
Please use the image gallery for your pictures, a short tutorial can be found here.
The first image in the first post will be shown in the project gallery.

Re: 2DOF simulator based on CKAS Thruxim

Postby Mertensbart20 » Fri 1. Mar 2013, 20:40

Hello RafBR,

The simulator is indeed quiet. The sound you here is actually coming mostly from the switching frequency of the inverters. I think I can adapt the switching frequency so that it is not audible for the human ear. But this is also because of the qaulity of the Siemens G120 inverters.

Greetings,
Bart
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Re: 2DOF simulator based on CKAS Thruxim

Postby Mertensbart20 » Fri 15. Mar 2013, 20:01

Hello everybody,

The racesimulator is assembled. We should have tuned it within the next three weeks. Below you can find some pictures of the assembled simulator.

Greetings,
Bart
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Re: 2DOF simulator based on CKAS Thruxim

Postby motiondave » Sat 16. Mar 2013, 00:31

Hey that looks great!
I can see where most people will be at lunch time.... ;)
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Re: 2DOF simulator based on CKAS Thruxim

Postby Mertensbart20 » Wed 3. Apr 2013, 09:36

Hello everybody,

Below you can find a first test with the simulator using rFactor. The pitch is out of place but that problem has been solved yesterday (unfortunately there was no one to make a new movie :-) ) . A new video will follow within two weeks (schoolvacation now).

The pitch and roll have been limited to 10°. The maximum 16° is only usefull in flightsimulation.

Greetings,
Bart
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[ Play Quicktime file ] simulator first test.mp4 [ 8.34 MiB | Viewed 2046 times ]

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Re: 2DOF simulator based on CKAS Thruxim

Postby Riton » Wed 3. Apr 2013, 19:32

beautiful work ;)
I find the slow operation, missing effects?
I am afraid for your simulator and your engines, the rotation of the cam 360 is impossible, it is very dangerous ...
good luck for the settings ;)
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Re: 2DOF simulator based on CKAS Thruxim

Postby Mertensbart20 » Wed 3. Apr 2013, 22:42

Hello Riton,

Thanks for the remarks. The effects need to be tweaked in the X-sim profile and we can turn up the motorspeed to 150% of the maximum speed at the moment. So enough room for tweaking there.

What do you mean with "I am afraid for your simulator and your engines, the rotation of the cam 360 is impossible, it is very dangerous ..."? We are going to install a small fence around the motorarms for protection. But what do you mean with "the rotation of the cam 360 is impossible"?

Greetings,
Bart
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Re: 2DOF simulator based on CKAS Thruxim

Postby Riton » Wed 3. Apr 2013, 23:36

mechanically cam can not rotate it seems not?
if there is a bug, it will turn without stopping and cause mechanical damage.

all in the beginning of my building, I tried to limit switches.
This did not work because the cutoff switch was too slow, it was breaking the switch and it did not stop the engines.
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Re: 2DOF simulator based on CKAS Thruxim

Postby Mertensbart20 » Thu 4. Apr 2013, 18:29

Hello Riton,

Good remark but we have taken this into account. We use limitswitches to make sure the motors are turned off once they go beyond their extremities. Because we use frequency invertors we can set the invertors to react to the limit switches and this response is within miliseconds. I have tested this with full speed and the system works perfectly.
Even without limitswitches there is no direct danger because beyond the extremities the motors will draw to much current and the frequency invertors will signal a fault (overcurrent) and the motors will shut down.

We still have to do some tweaking with X-sim but for the simulator itself everything is finished. Only the signals from X-sim and determining the maximum motorspeed is left. But since the students will have to do this and because it is vacation now it will take a while :-) . But by the 30th of may everything will be finished since we take part in an event. Should you be interested, you can find the site here:

http://dag-van-de-technologie.be/peterheller.html

Greetings,
Bart
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Re: 2DOF simulator based on CKAS Thruxim

Postby Riton » Thu 4. Apr 2013, 18:38

ok perfect! ;)
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Re: 2DOF simulator based on CKAS Thruxim

Postby Mertensbart20 » Sun 21. Apr 2013, 20:39

Hello everybody,

Below you can find a video of the racesimulator being used on our open schoolday. Next up will be final tuning for the award we will take part in.

Greetings,
Bart
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[ Play Quicktime file ] open schoolday.mp4 [ 4.76 MiB | Viewed 2037 times ]

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