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Electrical Issues: Hatch Lift - Battletech Pod - Tail Gate Lift Motor
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PL1:

--- Quote from: BadMouth on January 22, 2013, 09:27:16 am ---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.

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Here's a diagram I drew up a while back for Tony.silveira in this post.



Feel free to use/modify however you see fit.


Scott
BadMouth:

--- Quote from: kahlid74 on January 22, 2013, 09:38:28 am ---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.

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Reverse polarity of the motor.  I'm assuming the clutch is like an air conditioner compressor clutch in a car, it's either engaged(powered) or disengaged (not powered).
It would not have a reverse.  It most likely just engages and disengages the motor's motion from the lift mechanism (via a powerful electromagnet).

If it did flip the gearing in the mechanism somehow to reverse direction, I'm not sure if it would still be called a clutch.

If you have the arduino know how, go for it!
I'm sure there are lots of resources out there concerning controlling motors.
I'd like to tinker with that stuff "someday".
kahlid74:
Copy that Badmouth.

PL1, what are the limit switches for?

When I get home today I've got a spare DPDT switch I'll hook up and give it a go.

So now the big question, TORQUE.  On the Van, the motor, while using 20-40 AMPS doesn't really do the heavy lifting, the struts do.  So now the question would be do I need to incorporate struts into the hatch to make sure it goes up/down effortlessly.  The door will be wood, so it won't be too heavy, but it will still be heavy.

Then the next question comes down to the stress the hatch will be under when moving/stable in an upright position.  The hatch would be of an L design meaning the joint would have to be super re-enforced.  Some good wood glue and joints I assume would be fine but I wonder if I should use a piece of sheet metal bent 90 degrees for stabilization. 
BadMouth:
If you happen to live anywhere near an airplane graveyard, you might be able to get an actual canopy cheaper than you think.
From what I understand, aircraft parts have to be retired after so many hours and are only worth their weight in scrap because they aren't allowed to be used again on a different aircraft.
kahlid74:

--- Quote from: BadMouth on January 22, 2013, 11:03:05 am ---If you happen to live anywhere near an airplane graveyard, you might be able to get an actual canopy cheaper than you think.
From what I understand, aircraft parts have to be retired after so many hours and are only worth their weight in scrap because they aren't allowed to be used again on a different aircraft.

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It's a good idea but it won't work based on how the POD is deigned, being one of original concept to the VR 3.0 pods.
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