Begining the Motion Simulator

I'm Martin and i'm from Argentina.
My idea is to build a 2DOF wiper motor car simulator.

10/09/11
Well, I constructed the two boards, AVR Motion Controller v1.5 Dual Simple Mosfet h-bridge v1.2b designed by Thanos

Original Post:

Hi Martin,

which type of simulator do you want to build actually? Racing, flying, 2DOF, 3DOF, electric, pneumatic, hydraulic?

Regards

For racing, with 2 pneumatic cylinder
Thanks

Hello Martin!

First choose your setup configuration:



For Pneumatic soution, try the Velleman K8055B panel, from Conrad Elektronic. With a little bit modification , source.

Pick some cylinder (20-30-40cm) (cheaper solution the used parts) what is suitable for you.
And choose a valve setup.
- four valves per cylinder, because of three speeds. (valves with reduced airflow)
- two valves per cylinder with (airflow limiter) valve, for different (program controlled) speeds

I want the more simple and economic simulator, it is for begin, then see what happens.

This is the system i prefer:




For the valve i thought this system:




but i think this is more economic:



Which is the best?

Is it easy to find the interface Velleman K8055B? Because i didn't see it anywhere.

Thanks

You can order the K8055 panel from the conrad elektronik.
Check this picture, i found it finally:


You need 4 valve per cylinder, for 3 speed. 2 valve per cylinder, its only 1 speed. (you don't need the relay card, controlled directly is perfect)
Use airflow limiter in the valve output. You see the marked limiters, still enough only one piece per valve.

ok, i need only VM110. i asked for the price at velleman:
http://www.velleman.be/ot/en/product/view/?id=351346
Do i have modify to K8055?

I saw your motion simulator and it is awesome!

Is it the same to use 4 of these valves

or the 2 you mentioned (5/3 middle closed)?

What cylinder would you recommend?

Thanks

Yes. Up I mentioned it, you need to do small change on that panel. (just remove IC1, and connect a wire to different point)
For 4-6 bar, 65-50mm diameter cylinder recommended. About 200-300mm long (depend your configuration).

Check this topic, 17. page 162 post, and around it.
You need 2 pair vale to every cyilinder, to 3 speed. Think about it, what there would be able to move with only 1 velocity, always be you are too fast or too slow.

I can get the VM110 here in argentina for 122.60 dollars
2 cylinders 50mm diameter and 200mm long 227 dollars
4 valves 5/3 1/8 693.88 dollars

Total: 1043.48 dollars

I saw how it works and in theory it is the same to use 4 valves 5/3 than 8 single way valves normal closed, that would be cheaper, do you have any idea of how many l/min the valves must be?

Thanks

Mine is 125l/min, i think this is the smallest valve. But this fully enough, to the fast movement I have to reduce the air flow.(on 4 bar)
In my country:
cylinder in shop: 120$(*2)
valve in shop: 130$(*4)
air brush compressor: 375$
VellemanK8055: 75$

Try a used parts, eBay or something similar one.
I was able to get it for this much:

cylinders: 100$
valves: 200$
air brush compressor: 125$
VellemanK8055: 75$

It is possible to reduce the expenses, only more time to obtain the components.
You could post a `want ad` into forum market place, or just look around.

Regards

Ok, i started looking for everything.

I thought about this system:




Video:
http://rapidshare.com/files/212407402/Simulador.wmv.html

As you can see it has ball-and-socket joint

Thanks

No, I didn't make any calculaton.

I'm thinking using the system Thanos with 2 car windshield wiper motors to make it cheaper.
I'm not sure about the electronic items.
On the website http://ptyxiouxos.net//greekbotics/...lator/thanos_home_motion_flight_simulator.htm it says:

But then it shows different stamp in the photos.

Thanks

Hi,

The basic stamp2 board I use still has the same original components that exist on a Parallax home board of education. The difference is that the board on the photo is using OEM parts.

But why use the outdated Basic Stamp2 controller?
If you are willing to do some soldering, you could just make my new AMC1.5 controller and the DSMhb1.2b h-bridge motor driver, that are way better in performance!

http://www.x-simulator.de/wiki/AVR_Moti ... y_Tronicgr
http://www.x-simulator.de/wiki/Dual_Mos ... y_Tronicgr



And a note on your design...

You will not be able to use simple wiper motor on your design. They are too weak to drive that kind of platform. The car wiper motors are ideal for motion with carefully balanced motion cockpits like the joyrider I present on my site. Here you can find more info on the course of making one, in the thread that Oscar made:
step-by-step-approaching-to-thanos-work-t1218.html


Best Regards, Thanos

Ok!!
I'll try to get the components.
One question:
If i got it right i have to make the AVR Motion Controller v1.5? the PWM to simple hbridge dual is unnecesary if i useDSMhB 1.2b.
As for the wiper motors i'm thinking of using F100 truck 1980-90, do they need anything special? They are powerful.
About the design you are right, my design has to do a lot of force. I'd better use your design and i do it as balanced as posibble
Thanks

Hi,

The PWM to simple hbridge dual is now part of DSMhB 1.2b, and you don't to build it. You need only the following boards:

AMC1.5 (AVR Motion Controller v1.5)
DSMhB 1.2b (Dual Simple Mosfet h-bridge v1.2b)


Best Regards, Thanos

Well, I looked for the component and I found 2 differences:
You recommend ATmega8535 16PI but I can only get ATmega8535 16PU. Are there any differences?
Also instead of MAX232, I can get MAX232CPE. Is it a problem?
The other components I can get perfectly
Thanks

ATmega8535 16PU & MAX232CPE are fine to use. They are not different from mine.

Also in the DSMhb1.2b parts purchase the IRF3205 mosfets instead of the IRFZ44. They are better match and stronger!!


Regards, Thanos

Hi! After so long I´ll retake the project!
After all I never bought any electronic component, the last thing I had was a list of the components of the boards AMC1.5 (AVRMotion Controller v1.5) and DSMhB 1.2b (Simple Dual-bridge MOSFET h v1.2b).
Thanos, these two boards were changed or have the same components?

Code:

AMC1.5 (AVR Motion Controller v1.5):
IC chips:
    1- ATmega8535 16PI (rated on 16Mhz) (I overclocked it using a 24Mhz crystal) 
    1- MAX232 (Notice that these two max232 chips are the same, just different firm). 
    1- LM2940CT-5 (5volt power voltage regulator, TO-220 package) 
    1- TO-220 cooler (for the LM2940) prefer the one with wings up. 
    1- Crystal 24 MHz (24.000.000 hz) (For maximum PWM of freq 24Khz) 
    1- Crystal 14,7456 Mhz (14.745.600 hz) (To be used with alternate PWM freq of 13Khz) 
    1- Crystal 18,4320 Mhz (18.432.000 hz) (To be used with alternate PWM freq of 17Khz) 
    1- Crystal 22,1184 Mhz (22.118.400 hz) (To be used with alternate PWM freq of 21Khz) 
    3- Transistor BC547 (TO-92 package) 
    1- Trimmer Potentiometer 10K multiturn 
    1- ALPS button 
Male Pin headers with black base (for servos and ADC ports):
    12- 3pin SIP headers 
Programming port headers:
    1- 6pin female SIP header 
    1- 8pin female SIP header 
Capacitors:
    2- Capacitors 1000uF/16volts 
    5- Capacitor 10uF/16volts 
    4- Capacitors 100nF/100volts (they write on them “104”) 
    2- Capacitors 1.2nF (they write on them 1n2) 
    3- Capacitors 22pF/100volts (use two 22pF with crystals of 18Mhz or lower) 
    2- Capacitors 18pF/100volts (use two 18pF with crystals of 22Mhz or higher) 
Pin headers with white base (for serial port, motor controller connector port, LCD port):
    4- 3pin male & 4- 3pin female 
    2- 8pin male & 2- 8pin female 
    2- 10pin male & 2- 10pin female 
Diodes:
    2- Zener diode, 5V1, 1/2w (zener with 5volt cutoff, low currents) 
    1- Led Red 
    1- Led Green 
Resistors:
    1- Res 47K Ohm 1/4w , 1% 
    1- Res 39K Ohm 1/4w, 1% 
    1- Res 15K Ohm 1/4w, 1% 
    5- Res 10K Ohm 1/4w, 1% 
    2- Res 4.7k Ohm 1/4w, 1% 
    1- Res 1K Ohm 1/4w, 1% 
    1- Res 470 Ohm 1/4w, 1% 
    2- Res 220 Ohm 1/4w, 1% 
    1- Res 270 Ohm 1/4w, 1% 
    1- Res 10 Ohm 1/4w, 1% 
IC bases for Atmega8535 and Max232:
    40 Pin IC base (wide) 
    16 Pin IC base (narrow) 
Misc. stuff:
    1- Dip-8 switches package (4 switches) 
    4- Pin header jumpers (for use on the AVR motion controller board) 
    11- Pin header jumpers (Optional- For use on the LCD board) 
    1- L 10uH (Inductor, coil choke, in micro Henry) 
    1- Power Jack (Pick a PCB mount type, the photo shows a box mounted one) 
    2- DB9 Female angle (For serial port)

and

Code:

DSMhB 1.2b (Dual Simple Mosfet h-bridge v1.2b):
1x - 74HC08 (DIP14)
4x - IRF4905 (TO-220)
4x - IRFZ44 (TO-220)  (IRF3205 are better match and stronger)
4x - BC546 (TO-92)
4x - 3.6K Ohm 1/4 watt resistor 1%
4x - 2.2K Ohm 1/4 watt resistor 1%
4x - 1.5K Ohm 1/4 watt resistor 1%     
2x - 680 Ohm 1/4 watt resistor 1%
4x - 160 Ohm 1/4 watt resistor 1%
8x - 1N5819 Schottky Barrier Rectifier   (its better to Use 1N5819 as I did)
8x - Zener 15volt 1/2 watt               (The smallest was 1/2 watt not 1/4)
2x - 100uF / 63v capacitor
2x - Red Leds
2x - Green leds
1x - 80mm 12v PC case fan
4x - Terminal connectors (two legs) atleast 15amp rated on 125volt
8x - Terminal connectors (three legs) atleast 15amp rates on 125volt
1x - DIP 14 IC header
1x - 10pin Male Molex connector
8x - pieces of aluminiun to cool the mosfets (use silicon paste if possible).

Parts to construct the cable to connect it with AVR motion controller:
2x - 10pin Female Molex Connector + 8 metal pins
8x - 15cm pieces of wire (Preferably colored)

Do you keep doing the simulators with these boards or do you use others?
Thanks

The design I have in mind is the one from Thanos, it would be something like this: