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| Electrical Issues: Hatch Lift - Battletech Pod - Tail Gate Lift Motor |
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| kahlid74:
--- Quote from: TopJimmyCooks on January 26, 2013, 03:05:12 pm ---Did you pull the ac unit from that Honda? looks like it's gonna be hot in there. --- End quote --- There's two fans in the back that will be hooked up to a temp control system and will vary their fans accordingly. If it gets hotter than that I'll brainstorm more fun ways to cool it down. --- Quote from: PL1 on January 26, 2013, 03:44:26 pm --- --- Quote from: kahlid74 on January 26, 2013, 01:15:06 pm ---I'll look at the tools I have and how I could make this cut. Jigsaw/Circular Saw/Router. Hmmm. I'm not really going to be able to take the door off so it's going to be a tricky cut. --- End quote --- Maybe a piece of lumber (1x4, 2x4, etc.) screwed to the door to act as a straight edge guide for your router? Drill start and stop holes for the router bit. Chain drill several small holes and use a chisel to carefully break through the last little bit. Scott --- End quote --- I think what I'm going to do is take the door all the way off. It's only on by the hinges and motor arm. so I can take it off completely and then reaffix it. |
| bkenobi:
I imagine that motor is pretty strong if it's designed to lift a tailgate (even with gas shocks). What provisions have you made to keep the door from removing fingers and/or heads? |
| kahlid74:
--- Quote from: bkenobi on January 29, 2013, 11:31:25 am ---I imagine that motor is pretty strong if it's designed to lift a tailgate (even with gas shocks). What provisions have you made to keep the door from removing fingers and/or heads? --- End quote --- Great question and requires a multifaceted answer: The first set of sensors will be connected to Relays specific to the door's position at the end of opening or closing. I plan to use micro-switches to identify when it's closed/opened and to kill power to the clutch/motor. This way the doors motion will stop when it hits either of those positions. The second set of sensors would be pressure sensitive and will be quite a bit more difficult to achieve. Since the clutch has built in sensor controls, on a car when the liftgate encounters resistance it triggers one of these sensors (resistance closing/opening) and disengages the clutch. I want to achieve something similar to this as a phase 2. The challenging part will be hooking up the sensors to measure resistance and understanding how to get the clutch to disengage once resistance has been acknowledged (simply connected the pins didn't do it, so I wonder if I have to send a charge through) |
| HaRuMaN:
I'm gonna miss kahlid74... |
| bkenobi:
If you were to have the door slide, using a pressure switch of some kind would work great. But, this arrangement is rotating. If you set the pressure switch to an appropriate value such that a limb won't be severed near the bottom of the door, there's likely enough force on top of the cab next to the hinge to remove a finger real clean like! I love the concept, but I'm wondering if you might be better off with either: * A sliding door as suggested earlier * Making the gap between the doors larger such that a finger or small person's arm would not be injured by a closure (~2" seems safe to me). You can use some type of rubber molding to mate the 2 surfaces such that they still seal tightly. This is a hobby that should be fun. Rushing to the ER with a finger in ziplock doesn't sound fun IMO. |
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