I don't know if i've understood very well!

Hi! I'm italian, so sorry for my english :

The hardest part to make for me is the electronic part. I've never worked
with pcb, chip programming, etc.. (I just started some time ago to study
C-C++ but i'm really at begin).

So, i'm trying to understand exactly what i need before i start my project.
Please, take a look at this image and tell me if it is correct or if something is missing!

Thanks a lot, best regards,

Andrea.


PS: I would to use 2 car wiper motors!

You will also need a motor driver for each motor. That is also where the power supply will connect for each motor.

Thanks for your reply! But.. Thanos AMC board has H-bridge.. What is the h-bridge function?


___________________________
Andrea.

I'm not sure what you're talking about; Thanos' AMC board by itself doesn't have an H-bridge.

If you are keen to build your own board, good luck with AMC.
I suggest the Pololu JRK 12v12 http://www.pololu.com/catalog/product/1393 , controller and h-bridge in one with feedback. Excellent board, 7 wires, one USb cable per board and the new software coming soon fully supports it very well.
One per motor, will handle 14v at 30 amps continuous , so you could use 12v 200 watt worm gear motors. http://www.motiondynamics.com.au/worm-d ... orque.html or ebay equivalent. These snap as fast as actuators I Have found.
Plenty of other people use similar motors with great success.

Heres some pics of how to wire it up. Refer to diagram.
And another pic suggesting how to connect the pots to the motor lever arm to supply feedback to the pots.

The amc is the controller (as buggy as it is,not stable over long periods) needs to be connected to a hbridge to run a dc motor, or another add on card to run 240v (very slowly).
Please ask at xsim not here. We dont support it or xsim.

Sorry.

Hi all! Thanks for replies!

Yes, when i've opened this thread i didn't know very well what i was tolking about Later i've studied..

Bsft:

So, your suggestion is to leave completly the AMC project and buy polulu 12v12?? How i connect it to x-sim softwares? Are necessary two computers? Is necessary to flash a firmware on it or it is just a plug and play board?

If this is better then AMC like you say, i'll use this!

PS: Oh, can i use car wiper motors with the pololu board? I would use them because are inexpensive (12V, 40W, 30€/each on ebay)

Thank you very much for helps!

Hello drumbass.
Depending on what software you have currently , the Pololu JRk will hook up via USO commands mostly.
Once you get more setup, we can advise and help you set up the program side of things. Quite simple.
You only need one pc, as long as its a quad core CPU minimum, 4 gig ram, decent graphics card to run games.
There is new software available soon, it will have a direct plugin support so you do not even have to type anything in.

Back to the JRK, as said, its an all in one board for one motor per board. No need for an AMC or even an Arduino to control it. It does all that and a h-bridge fitted on the board.
Obviously buy 2 boards, but at $100 each, they are very tough boards and very good.
No code to write, no flashing of firmware constantly, just plug in the USB, and its plug and play, well , with a few settings it is.
Yes it will do 12v wipers just fine. Plenty of us started with them and some still use them. I only suggest bigger motors for later if you like.
Make sure you earth isolated the casing on the wiper though as a 12v feedback through the case will blow the JRK.
Eaorobbie has a diagram for testing earths..
Just ask as you need to.
Cheers, David.

What do you mean with depending on what software you have? I know that is necessary to have only the x-simulator software! Am i wrong?

I didn't understand this part.. (English + Electronic principles.. It's an hard work for my head :? : )


Thanks again for help!

Software for motion, do you have anything so far?
2089? 300xxx?

12v wiper motors are earthed through their metal casing, so you need to find the earth wire and isolated it, otherwise , you will have a live 12v frame, thats if you use steel.
You could use PVC pipe as a frame. Eaorobbies idea originally via an external link at insidesimracing.tv , so thanks rob for that.
No worries about a earth leak. its plastic, so just both the motors on the side via rod end levers and go for it.
If you use steel, the motors MUST be earth isolated or the 12v feedback through the frame finds its way to JRKs and blows them.
I know from experience.
I have attached a pic, (thanks Eaorobbie)

No, i don't have anything yet.. Can you tell me what's the best?

I just want to be sure to know every little step to do for now. However, the real project will start as soon as possible!

Dont worry about software mate, come up with a plan on what you want to build and we are more than happy to advise on all of the options available to do exactly what you want to do. When it actually comes down to it, Building the sim is 80% of it and the electronics is only 10% and software fills the viod and makes it all work

Hi,

I would make a simulator like thanos joyrider (with little differences) in order to simulate car (no airplane).

Take a look at images (i would to use PVC because it is more light then iron/steel):

(the red stripes are cycle chains and the pulleys mounted on motors are Chainrings)

Well done mate, looks well thought through. Now if my memory serves well, this has been done before and eas part successful, except he had an issue with the wire stretching over time, wipers might keep up but tend to chew main worm gear clean, if under too much strain.

I have actually built the joyrider from the plans you can buy and under motion it flexed way too much , but as a flight deck it wasnt bad, not great but. So I went on further with my design and built one of steel, with a comparable weight to pvc. But I got stalled researching a cheap motor to run on them, found some 900kg winchs and went bingo, but ended up building a race sim. The story grew from there, discovory of the jrks, 8 different sims. Now I use big worm gear motors and at 200w they kick arse.

One little point on the whole design make sure it can self centre, not aggressivly but this will help it balance nicely and all the motor has to really do is pull it out of balance and does not have to work hard to bring it back to the balanced point. Makes construction and use a lot better, just things I have learnt over time.

I don't understand very well this part and google translate don't works fine :
Which worm gear? It is in the gearbox of wipers?

Thanks for the advice, i'll keep it in mind.

PS: Can i use this winch motor with Pololu JRK 12v12 ? http://www.ebay.it/itm/VERRICELLO-A...cessori_e_Ricambi_Nautica&hash=item564922ee84

Thanks,

Andrea.

Depends on the wattage of the motor, I suggest no more than 300 watts with a JRK.
I have tested a 350 watt motor on a JRK, but with simulators, the stall current can be a lot higher than actual current.
I had the 350 watt motor rated current of 29 amps, but stall current at 38 amps. A bit high for continuous current on a JRK. Considering the spikes could be near 40-45 amps.
The limit of a JRK is 49 amps for 6 seconds before it shuts down to protect itself. (thanks for that info Eaorobbie).

Cheers, David.

My question now is: Can i set the revolutions of the motors on the software in order to set the diameters of chainrings?

Thanks,

Andrea.

Yes, via the feedback potentiometer you need to put on the motor.
Once you set the feedback, you have a set rotation.
That is done in the software related to the choice of controller you plan to use.

ah right! I hadn't thought it! It 's so obvious .. :yes:

Hi all,

I've found this motor on ebay : http://www.ebay.it/itm/12V-DC-Elect...ial_Automation_Control_ET&hash=item19dd4cde64

Can you tell me if is a good and powerful motor?

Thanks a lot, best regards,

_____________________________________
Andrea.