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.
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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.
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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.
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The final result with epoxy
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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.
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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!
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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.