SimHawk's motion simulator

Hello egoexpress!

I will check the matrix setup, but not before I get back from christmas holiday. Right now we are driving around in our car with a laptop in my mothers neighbourhood scanning for wireless networks and found one. Just to check mail and such.

My valve is still broken. I will open it up and see if it is a broken connection in the coil.

But for now Happy christmas! :xmas:

It seemes correct according to what I think your thinking! I assume that your notations is based on the simulator movement, not Profiler notation. That is a little confusing. I am not sure how to put in your values in the profilers matrix setup.

I think we should rename the cylinders to x and y to be more consistent with the profiler (eg x-y target values). Not to confuse the left cylinder with left movement of the sim which needs movement on both left and right cylinder. Puhhh.... :? Easy to get confused. I use notation like x-cylinder extend fast or y-cylinder retract slow. And in the matrix setup one has to convert the left/righ tabs to x-cylinder extend retract. And up/down tabs to y-cylinder extend/retract. X-cylinder is my left cylinder seen from simulator rear.

As long as profiler SW uses x/y some places and left/right some other places it is doomed to be confusing for pneumatic simforce users.

I found the problem with the valve that has never worked! One of the eight coils on the four 5/3 valves was 24V, not 12V which I use. So it is not broken I just have to connect that coil to a 24V source. Where is my other 12V - hobby battery..... I think I saw it somewhere last year....... hmmm....

EDIT: I just realized that one cannot have different voltages connected to the ULN2803 due to the flyback protection diodes connected to the COM output. A 24V source will connect trough this diode to the 12V that the other outputs are using. Seemes like I have to solder on another driver chip with COM to +24V.

Hello folks! :hi:

Nothing much have happened with my sim lately. I use it once in a while, but I have to admin that I got one step further in driving realism. I bought myself an Ford Escort mk21979 car http://images.google.no/images?hl=no&q=ford+escort+mk2&um=1&ie=UTF-8&sa=N&tab=wi (like the one in my avatar, just not rally prepped) I am rebuilding it with upgraded engine, suspension and so on. So I guess my spare time is consumed by the car... to bad for the sim, but the reality is the ultimate goal for the sim isnt it? Today I was going sideways in the snowy weather here with my car.

So I guess this is the end of my sim thread. I have learned a lot and thank you guys for your help. I will still monitor this thread and PM's if you want to contact me.

:hi: The end! :hi:

Its obvious that you are not satisfied with your pneumatic system.
Imho you should consider to add some DC jacks to your frame

Regards
Christian

That is partly correct. I was considering an electric actuator solution, but then this car dream came true and the little spare time that I have left is now used in the garage! ;D It is not that simulation is not cool, it is just that reality is cooler! :happy:

Take care folks!

Hi SimHawk,
Could you make a photo of your pneumatic assembly please : ? if it's not already do...
Thanks =)
Max

Here you are!

Thks a lot
You only use distributor 5/3 open and card velleman K0855 for pneumatic assembly?

I use 5/3 center closed and one Velleman K0855. And one way checkervalves for regulating exhaust port air flow. (Cylinder speed control)

arf closed what i said^^.
Are checkervalves necessary?

The needle check valves controls the air flow and thus the cylinder speed. Pneumatic theory I found on the internet says that to control the force of the cylinder adjust the air pressure, to adjust the speed - adjust the airflow. And restrict it at the exhaust port (not input port) of the cylinder. See below for more info.

I found this on the web explaining the best way to control an air cylinder:

You can read it here:
http://searchwarp.com/swa78890.htm

hello
i have a problem to test velleman card:
I just connect velleman card , relay card and the potentiometer, when I plug the cable clamp to 0 relays card, Relays are not working

when i disconnet clamp/0 cable , relays works
why?
if you have an idea
thank you


my post 9 and 10
simulator-frex-home-made-in-france-t469-80.html

hello
I need your help soon if you want it! well
your tire simulator work really well on the last video!
I ordered 4 dealer 5 / 3 center, because I had 2 open center.
I'm in the stage settings, and I certainly need your experience.
for the matrix I already have a first test, there is progress on my post:
simulator-frex-home-made-in-france-t469-130.html
I have some questions:
the axes are offset by 45 °, it is not a problem with the information for direct X who are in the right direction?
if the right of the simulator is in the left corner ,and left in the game/direct x is in the normal left how move the simulator?
I do not understand this point!

I have another question:
After calibration, the simulator center?
I have no effect on the board Velleman after calibration, I did not feel that the simulator test center
thanks

hello,
I need help for the effect in the profiler for GTR2
I do not know how to apply the effect to be in the right direction
have you a .rnr for my simulator Frex design?

thank you