MASTER

[NORAN]

Good staff, there it is another MOC.

This is a FMC based master controller, it is used to control a manipulator (slave arm).

I've used 1 NXT, 3 PF receptor, 4 PF motors and one servo PF.

The NXT to PF comunication was made using a IRLINK sensor, from HiTechnic.

Its accuracy will always depend of the PF batteries, because we used a time variable of the positioning of the manipulator

since it does not have the feedback, so if you have constant power, the calibration will be easy and very accurate.

The display of the NXT is also possible to see all the variations that will be performed.

The program has been made right on the NXT software, and used a system similar to Token Ring to store and run the values ​​

of variations.

I hope you enjoy

[Saberwing40k]

I've thought about this, but I've never seen anyone actually build a system like this. Thing is, as you mentioned, it is inherently inaccurate due to the pf motors.

[jorgeopesi]

Nice .

[NORAN]

PF's really not very accurate, but if you have a constant supply, other than batteries, (I'm working on a direct source of power network), you can adjust the time in the program in milliseconds making it very precise. :)

and sorry for my bad english;)

[Doc_Brown]

Wow, great machine! I'm wondering would it work better if you had the arm controlled by NXT motors instead of PF ones?

Awesome work tho! :thumbup:

[The Ghost Racer]

Cool moc.

[Sariel]

You would get a better response time and much higher accuracy connecting two NXT units over Bluetooth like this: http://sariel.pl/2012/03/nxt-brick-to-brick-remote/

[Rishab N]

Nice Moc

[NORAN]

Thank you guys, now I'll see if i could write a program to execute the commands.

Regarding use 2 NXTs, is a bit unfeasible 'cause here in Brazil it is very expensive, and with the arriving of EV3, I am in doubt which one to buy. Do you have any suggestions on what I should buy, the EV3 or NXT?

[rocklego]

Amazing work!!

[Someonenamedjon]

Thank you guys, now I'll see if i could write a program to execute the commands.

Regarding use 2 NXTs, is a bit unfeasible 'cause here in Brazil it is very expensive, and with the arriving of EV3, I am in doubt which one to buy. Do you have any suggestions on what I should buy, the EV3 or NXT?

I would suggest you buy a NXT because the new Ev3 and Nxt cannot be daisy chained together.