Itty Bitty Double Extruder

[RobH2]

This might help in the meantime:

http://www.easterngeek.com/2010/06/h...otor-lead.html

[clough42]

can you add something about wiring up Nema 14s the colors are different then the standard steppers from makerfarm

The short answer, if you're using the Pololu 1209 motor is that I have them wired blue-red-green-black. You may have to flip the connector if the motor turns the wrong way.

In general, a four-lead stepper motor has two coils. You can use an ohmmeter or continuity tester to figure out which wires are connected to the same coil. On the Pololu motor, you'll find that the blue and red wires are connected to one coil and the black and green wires are connected to the other

You can also figure it out with no tools. If you connect two wires from the same coil together, the motor will get harder to turn by hand and you will know you've found a pair.

Once you figure out the coils, just connect the wires in order, the two wires from one coil, followed by the two wires from the other cool. Order doesn't matter, except to change the motor direction. If your motor turns the wrong way, just turn the whole connector around on the board.

Pro tip: if you need to extend your motor wires, Makerfarm has motor extensions really cheap. As in cheap enough that I buy ten or twenty every time I place an order, just for the wire.

[clough42]

can you add something about wiring up Nema 14s the colors are different then the standard steppers from makerfarm

And here's another page on stepper wiring that addresses other motor types:

http://reprap.org/wiki/Stepper_wiring

[adamfilip]

i switched from a Hitec 9gram servo to cheaper towerpro servo as it fits the servo bracket better
but for some reason when i send down a servo command it only moves 45 degrees at a time instead of 90
(and yes im telling it to move 90)

[RobH2]

Hmmm, I use the Towerpro servos and have used two of them. Both functioned normally. They are cheap enough, maybe swap it out and see if you have a bad one.

[adamfilip]

hmm i commented out this and it seems to have fixed it

//#define PROBE_SERVO_DEACTIVATION_DELAY 300

[RobH2]

That's interesting because here is mine. But hey, if it works, well...it works, right? Notice the comment I have:

#define PROBE_SERVO_DEACTIVATION_DELAY 500 // DEFAULT was Disabled

[adamfilip]

when i had the Hitec Servo i enabled it to reduce twitching. but with the tower it seems like a slow dog compared to the hitec
havent noticed any twitching yet. but i also insulated the servo wires to reduce EMI

[RobH2]

What did you insulate them with?

[AbuMaia]

After reading through the posts in this thread https://3dprintboard.com/showthread....Dv6-vs-hexagon, I'm more hesitant to buy two Hexagons to replace the E3D I have now. Is there no way we can get an IBDE version for the E3Dv6?