K8055 + Sabertooth + Wiper motors

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

Not to forget the power supply.

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

has anyone been sucessful with the pololu TREX, it has 13amp out x2. Its a little more money, but looks to be a little more powerful. I would assume one could partner this with the k8055?

http://www.amazon.com/Pololu-TReX-Motor ... 84&sr=8-12


and with the k8055 could i drive additional servos for perhaps gauges?

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

I need help on Xsim profiler:
the actual manuel don't give any exemple or information about dynamic speed.

I need to better understand the management of analog in Xsim profiler
how to make a profile with dynamic speed?
how to make a profile with dynamic speed with the velleman card + Sabertooth card ( there are a post in the forum for this)
how to make a profile with dynamic speed with analog output H bridre /sabertooth ..... in analog alls card need 0v ....2.5v .....5v
this card have direction and speed in the same analog signal.
is possible with dynamic speed?

PM if you want.
Many people use this mode
thank you in advance!

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

Hi all,

I will post a complete tutorial to explain how to use K8055 with Sabertooth and X-SIM. Very soon, maybe tonight.
But please, can someone give me an advice in reply to the question of RITON : I would like to use Dynamic speed !!!

Thanks in advance for the dynamic speed : HELP !

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

From what I can gather, the dynamic speed in synaptrix returns a positive number for speed, and a digital direction bit. Correct me if I'm wrong but I don't use this section.

You need to do math calculations with this information to make it into a combined signal where 50% is stop, 0% and 100% is full speed in 2 directions. The logic goes something like this:

dynSpeed / 2
Output = maxOutput / 2 (to make stop = 50%)
if (direction = forward) -> Output = Output + dynSpeed (forward speed from 50% - 100%)
if (direction = reverse) -> Output = Output - dynSpeed (reverse speed from 0% - 50%)

Assuming Output and dynSpeed are equal size integers.

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

thank you for your help and for your answer!
I know that nobody uses this fonction dynamic speed, but it exists and we need it!
maybe Sirnoname give some information i think he say how it work...

about my problem:
is it possible to use only analog?
the standard power boards (PWM / Saber....in analog mode) uses logic 0 ...... .... 2.5V ..... 5V for direction and speed.
if you want you can read the english manuel to better understand how it work.
manuel:
http://www.dimensionengineering.com/dat ... th2x10.pdf

information about analog, PDF:
Analog input mode is selected by setting switches 1 and 2 to the UP position. Switch 3 should be either up or down, depending on the battery type being used. Inputs S1 and S2 are configured as
analog inputs. The output impedance of the signals fed into the inputs should be less than 10k
ohms for best results. If you are using a potentiometer to generate the input signals, a 1k, 5k or
10k linear taper pot is recommended. In all cases, an analog voltage of 2.5V corresponds to no
movement. Signals above 2.5V will command a forward motion and signals below 2.5V will
command a backwards motion.

the question is : how make that with dynamic speed?

Xsim needs the information on speed and direction separated?
how it works with USO? With Thanos card?
you also have the speed and direction separated?

many thanks

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

If i,am correct, dynamic speed works only digital with a quadrature encoder
A. sabertooth plugin would give this comunity great freedom for bigger simulators
with there 24volt 25amp controller a cheap dof 3 or 6 will be possible without the slow making vm 110
best regards

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

I do not understand what you mean ...
I do not think this is a problem of encoder, this is not the problem.

I already have a lot of knowledge about XSIM with Dynamic speed, but I need simple answers to my questions to move forward and give information to other people.


to stay on the subject, it is necessary to understand the basic logic of xsim dynamic speed mode.

I'm not looking for weeks, months, years (it's already what I did for my first simulator) to sequences while it may be impossible!

important questions are posed, with answers that will be perfect, I'd do the rest!
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Re: Small Prototype / VM110 + Sabertooth 2 x 10A

Hi all,
Salut Riton,

I think the solution given by Frakk is a good reflexion. I have no time to test right now, but I understand the calculations, or at least, the idea.
It is a kind of compensation between analog integer and dynamic speed.
I would be gratefull if it works.

Regards

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

yes it's interesting... i need to test for understand...
thanks

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

Hi all,

Here is the result of my work. I have already given you a complete tutorial, and now I give you a video to show the result.
For the moment it is only a prototype...

Just to show that the combinaison K8055 + Sabertooth works perfectly.

This is a demonstration with GTR2 :

http://www.youtube.com/watch?v=At466IvfuCM

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

excellent work adbgg! :clap:

keep going with the build - have you any plans for motors yet?

With the weight arranged to be directly over the central universal joint, you may be able to get away with wiper motors on their own attached in the same way as your servos...

Tim

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

Hi Bigtalltim,

Nice to read you !

I'm still happy for what I did even if it is only a small prototype. For sure, I begin to think about wiper motors from now on.
I think it is possible to build a nice simulator, in which I could sit down (smile). Yes, I imagine it would be important to place the joint at the gravity center ! Maybe springs should be a good help in this kind of project.
But in the same time, I'm not so hurried since I built this prototype. It was my project, and I did it. I hope the tutorial I've written will help other people in their own project.
The video posted today on youtube is the proof that K8055+Sabertooth is working well. This is a big step.
All others projects baseed on K8055 + Sabertooth are possible : Sabertooth = 24V / 12A with peaks until 25A. This card offers many possibilities about motors features (until 250W I suppose).
For my part, I will see for the futur (wiper or not wiper, that is the question...). In fact, I've been in a scrap yard today (is it the good word in english ?), but nothing intersting for me.

I continue to read your post, because you did also a good job !!!
I'm glad to receive your support (encouragement).

Regards

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

Hi all,

I post some pictures of my prototype :

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

Hi all,

I have just bought a wiper motor (12V from a CLIO type I). I'm very surprised to discover so many cables...it is like a rainbow !
Where can I find a tutorial to understand how I can use this motor ?

May I use only the cables red (I suppose : +) and green (I suppose : -) ?
What about blue, black and brown cables ?

Thanks a lot for your replies






BUT NORMALLY, there is no + / - for a DC motor.
How to change the direction otherwise ?
If I'm not wrong, with a DC motor, if you want to change the direction, you just have to inverse the cables + / -. That's all ?



Regards

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

You can find help here (in french)
http://www.palombe.com/d/moteur/moteur.php?page=3

Google traduct is your friend

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

Thanks for this link....humm it should not be too difficult for me to translate...because I'm french )

Enfin, je voulais simplement dire, merci pour ce lien, car je vois tu es français également. Alors autant que je te réponde directement en français.
Merci encore, je vais jeter un coup d'œil, en espérant que cela sera suffisant pour que je comprenne...
A bientôt.

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

Hi Guys

Here are two links that will interest you which I found during my own research into alternative ways of using wiper motors.

The first link has a superb explanation of how wipers work, and features a section on voltage and power requirements that will be useful to you:

http://www.scary-terry.com/wipmtr/wipmtr.htm

The other one is actually a link from the first one - Adbgg: you asked what the extra wires were for...
Here is a page by a guy who (like myself) has ripped one open in the name of progress!
The extra wires are for basic positioning in the wiper setup of a car... not much use to us here unfortuntely :

http://www.stensat.org/projects/wiper_motor/low_res/wiper_motor_internals.htm

Tim

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

Hi Bigtalltim,
BIG THANKS !!!
For sure, I will get all informations to understand and to try my wiper motor, now.
Cu

Re: Small Prototype / VM110 + Sabertooth 2 x 10A

Hi all,

Last question for today.

I did a first test with my wiper motor and a power supply of 12V / 2A (not so much, but it works).

So, I have understood :

- Red cable from the motor is quick speed
- Green cable from the motor is slow speed
- Brown is the ground

My first test was to link green cable to the + of my 12V supplier, and the brown cable (ground) to the - of my 12V supplier.
And, It has worked...with the slow speed of the wiper motor.
I did the same with the red cable, and the motor has turned faster.
So everything seems to be alright for me until now.

My question is : How can I change the direction of the wiper ? Can I link the brown cable to the +, and the green cable to the - of my 12V power supply ?

In my opinion, it seems strange to link the + of the 12V power supply to the ground of the wiper motor ? I don't know...
Thanks in advance.

Regards