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Electrical Issues: Hatch Lift - Battletech Pod - Tail Gate Lift Motor

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HaRuMaN:
I'm gonna miss kahlid...

BadMouth:
my GUESS:
SVCC = Sensor Voltage
SENA = Sensor A
SENB = Sensor B
SEGA = mount everything on a Afterburner Deluxe base for full motion (or maybe sensor ground) EDIT: or sensor gate, as in don't move it if latched.

This thread popped up when I searched for this stuff the other day.
http://www.odyclub.com/forums/27-diy-modifications/80947-add-oem-power-tailgate-rearview-camera-odyssey-07-project.html
It shows a left and right sensor. (It also shows a separate drive unit)


You have no need for such safety sensors!
Just start throwing some voltage to the motor and clutch already.  >:D

kahlid74:

--- Quote from: BadMouth on January 21, 2013, 03:41:12 pm --- (It also shows a separate drive unit)

--- End quote ---

Thanks for the idea of where to get started.  It's not actually a seperate drive motor, but instead the closing motor, for the latch inside the door.  I saw it when I was looking at the tech specification sheets for the Odyssey.

I got home today and removed the extended arm and wired up all the voltage from the tech specifications sheets (- to line/hot, + to com) and then used a computer power supply's 12v lead for the clutch and the motor.  I then used a power strip to turn it on and off:





So when I let the arm go until it hits it dies hard and won't turn back on again until I completely break the circuit and then re-establish it.  Even the PS won't turn back on until I unplug/re-plug it.

So here's my questions now:
1). How do I get it to go in reverse?  Change the polarity?
2). The sensors I imagine will stop it, so I just hook a wire up to one of the SENA and then to the ground and when it's close to the end I complete the circuit?  This maybe isn't as much of a question as it is something I'm going to try

BadMouth:

--- Quote from: kahlid74 on January 21, 2013, 10:58:33 pm ---So here's my questions now:
1). How do I get it to go in reverse?  Change the polarity?
2). The sensors I imagine will stop it, so I just hook a wire up to one of the SENA and then to the ground and when it's close to the end I complete the circuit?  This maybe isn't as much of a question as it is something I'm going to try

--- End quote ---

1) yup.

2) The sensors are only hooked up to the clutch.  Making the sensors engage or disengage may stop the movement, but it isn't going to stop the motor.
    I imagine the sensors are triggered when something is immediately in front of the hatch and about to be struck.  Then the clutch disengages and the door stops moving and a brain somewhere else tells the motor to reverse direction.  (all speculation  ;) )  Anyone have an odyssey?

If this thing is going to be PC controlled, I'd go ahead and get a pololu simple motor controller and add your own limit switches to the mechanism itself.
Then you could adjust speed, braking, etc from your PC.  A pololu servo controller and a relay could be used to engage and disengage the clutch.
A script could then be written to make the canopy behave however you want.

If it's just goint to run off a switch, you can wire up a DPDT toggle switch to reverse the polarity and put a limit switch inline with the power for each direction.
The switches will have to be able to handle the current though.  This is how I wired up my rotating monitor temporarily while working out the bugs.
Been meaning to draw up a daigram for DaOldMan's circuits thread in the mrotate forum.

If the thing moves freely without the clutch engaged, the clutch can act as a safety mech.  When power is cut to the clutch, the canopy can be manually lifted.

kahlid74:

--- Quote from: BadMouth on January 22, 2013, 09:27:16 am ---
--- Quote from: kahlid74 on January 21, 2013, 10:58:33 pm ---So here's my questions now:
1). How do I get it to go in reverse?  Change the polarity?
2). The sensors I imagine will stop it, so I just hook a wire up to one of the SENA and then to the ground and when it's close to the end I complete the circuit?  This maybe isn't as much of a question as it is something I'm going to try

--- End quote ---

1) yup.

2) The sensors are only hooked up to the clutch.  Making the sensors engage or disengage may stop the movement, but it isn't going to stop the motor.
    I imagine the sensors are triggered when something is immediately in front of the hatch and about to be struck.  Then the clutch disengages and the door stops moving and a brain somewhere else tells the motor to reverse direction.  (all speculation  ;) )  Anyone have an odyssey?

If this thing is going to be PC controlled, I'd go ahead and get a pololu simple motor controller and add your own limit switches to the mechanism itself.
Then you could adjust speed, braking, etc from your PC.  A pololu servo controller and a relay could be used to engage and disengage the clutch.
A script could then be written to make the canopy behave however you want.

If it's just goint to run off a switch, you can wire up a DPDT toggle switch to reverse the polarity and put a limit switch inline with the power for each direction.
The switches will have to be able to handle the current though.  This is how I wired up my rotating monitor temporarily while working out the bugs.
Been meaning to draw up a daigram for DaOldMan's circuits thread in the mrotate forum.

If the thing moves freely without the clutch engaged, the clutch can act as a safety mech.  When power is cut to the clutch, the canopy can be manually lifted.

--- End quote ---

Reverse the polarity of the clutch or the motor or both?  When the motor/clutch are off the rack and pinion still slide, so it can be worked manually for sure.

My thoughts were to control it with an Arduino hooked up to a keypad on the outside and a DPDT switch inside.  So when inside the cabinet you can manually raise/lower it but when outside you have to enter the code to get into the pod.  I've got all sorts of cool ideas for immersion with this pod making use of my 3D printers etc. so it would be fun to do these types of things.

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