THis is the actual status of my simulator, mechanical side finished after 3 months work. My friend has a lot of job on electrical side... good luck !!! [
Hi everybody, I'm the lucky friend who will help him finishing his simulator .
We will use the configuration as follow:
- sew inverter type Movitrac B ( to power the motor with 3 current phase and for the frequency motor driving) - amc1.6 - RC filter for converting the pwm signal to 0-10 Volt - a board made by us for driving the rotation sens (p1d1 p1d2 etc) from 0 5 Volt to 0 24 volt. -xsim 3 for the game interface.
You can find in this topic the driving solution we want to implement :
Geard motor specifications: 0,37 kW 4 poles - gearbox output rpm : 48 ( a little bit high but we will see) My young friend want touch the moon with his simulator !!! We could make his dream a reality !!
Merci pour le post , si j'ai besoin je ne me priverai de te contacter .J'aurai des questions aussi si un jour on passe à la version 3DOF! Connaissant mon jeune ami impatient cela ne tardera pas !Mais on commence par faire un 2 DOF pour se faire la main.
Hi Riton , thank you for your post.If I need some help I will contact you for sure !When we will pass in the future to a 3 DOF I will have some questions too. As I know my unpatient young friend that will happen soon, but first we have to finish the first in 2 DOF
I not finished to wire all the material .I have to finish the sensors positioning , the box where I will put the amc1.6 and all stuff for connecting the current net. It will take me about 4 or five hours and after I can make the first test.
Update 15/09/2012 I just want to share how I build the magnets for using the hall effect sensor ss495. I found this idea on a french topic for a flight simulator joystick. Below the pictures from the french topic.
369416940.414177.jpg (167.64 KiB) Viewed 15721 times
So I used this idea taking a pen wiich has an hexagonal form to glue the magnets parallel !I confirm that I used magnet with 2 mm thickness and external diameter from 4 to 8 mm. I bought some magnets which have just one millimeter thickness, I puted 2 parallel for,each side. As I mount the magnets at the end of the output shaft which is taped,I glue the magnets to the pen and the pen into a screw. Look at the basic mounting for this.
369417578.288661.jpg (167.56 KiB) Viewed 15721 times
Pen glued into the screw
To have a good finishing I make some more operations.I wrap around the magnet a epoxy glue.To maintain the epoxy I wrap before around the screw a double face skotch(it's like molding).After I glue into it the epoxy taking care not to full up the pen complitely with epoxy.
369418169.360669.jpg (239.29 KiB) Viewed 15721 times
The final result with epoxy
369418296.209215.jpg (250.89 KiB) Viewed 15721 times
Screws with epoxy glue
The last work is to drill into the pen to have more space between the hall sensor and the magnets.I use a 7,5mm dril to rework the inside diameter. The final result.
369418958.358792.jpg (249.88 KiB) Viewed 15721 times
369419024.469898.jpg (252.78 KiB) Viewed 15721 times
UPDATE 2/11/2012: After several weeks trying to make a suitable h-bridge for bigworm dc motors I found the time to finish all electrical stuff for my friend's the simulator. First a picture from the electrical box ( I promise to make a good finishing in an another life ) It's a wine wood box ... Hope that it will be a very good vintage wine ...Bordeaux I believe!
image.jpg (900.67 KiB) Viewed 15119 times
And 2 litle video showing the first tests:
@Thanos:with the allegro 1302 hall sensor I measured this values: Mini lcd display 89 for 1,68 volt Maxi lcd display 165 for 3,13 volt The third pot was on 70% for 90° angle course The multiturn pot was turned on max on amc1.6 to give the full range voltage sensor.
I posted a video showing the startup for the inverter MovitracB coupled with SEW Gearmotor with the movitools Motion Studio Software given free with material. It's really simple for a startup setup , it takes one minute.If you want to change a parameter just redo this procedure.It's really easy to use. If you don't have a SEW motor the menu launch a motor test for knowing its parameters.
Hi , After several tries for finding the right parameters I present the first suitable test for the simulator 2DOF. I decreased the speed motor to 30% from its nominal speed.That means a speed 14 rpm ( max value) on output shaft . The ramp up,and down is fixed to 0,2 s and in xsim3 USO parser a refreshing rate from 5ms. The Inverter drive each motor in Vector flow control mode. It's a good compromise between speed , acceleration,smoothness and not too much brutal!! but a little for more sensations The next step is with me seating on the simulator !!! Don't worry about the screw falling from the simulator !!! Ouah ! You can watch the video below Enjoy :
Hi , Below the first test on the simulator loaded!! And full loaded ... My weight humm I can't say ... ok about 100kg The new paramaters , I had to decrease the motor speed to 400 tr/min max and I set the ramp up and down to 0,1 s.i changed also the arm (decreased) .I will give the lenght after. The video of the test :
NB : the other noise than the car is water falls.I have fish in my garage!
First test with all stuff ,shifter, pedals,wheel,screen.The simulator is very dynamic.The Thanos amc1.6 FW g is very good, fast response, good accuracy in positioning .
The youtube video:
One another video trying to see the track and the motion .Hope that give a idea of motion because the quality video isn't very good.
You can fin attached the files for making the adapter pwm to 0-10v and 0-5v to 0-24v
The symbol M in the pcb is Micro for capacitors 0,1 MicroFarad and 1 MicroFarad.
NB: in this post you won't find this board because it's 2 boards .One is the old board given per Tronicgr to convert pwm signal to analog 0-10v and the other the board made by a friend to drive the directions signal from 0-5v to 0-24 v. My job was to compile both boards in one board with this 2 functionalities.