Main > Driving & Racing Cabinets
My new project - 'Transformer' Standup/Sit down driver cab
Cretster:
Ok, I've got a provisional attachment of the wheel in position now so it can swing between attached to the front of the control panel, or swing down inside the cabinet for stand up (non driving) mode.
It's a bit crude and nothing in place to secure it at either position yet, plus it's literally just on hinges, not motorised at all, but it works and fits ok etc so is a good starting point.
I need to think about refining this so that it can have the second actuator moving the wheel in & out of position via leverage, and so it locks positively in place once raised.
One thing I also need to figure out is the electrics system for the powered parts to ensure nothing moves at the wrong time (ie leading to the cabinet ripping itself apart etc).
So effectively things like the following:
1) A switch for the front door (seat section) being upright /closed, which disables the entire lift motor circuit if the door is closed.
2) The lift motor is a simple +/- 2 wire input for power/control. It has built in end stops either end so if the power is connected it stops anyway, but I need some sort of switch that will swap the input polarity basically. I could do it with an arduino I suppose with inputs & outputs and motor controllers etc but a simple forwards/backwards rocker type thing that swaps the polarity of the battery wires effectively would do for now. Not sure what the proper name would be for a switch that does that, or that sort of control method etc.
Need to go modify the board the wheel is attached to anyway as it interferes a tiny bit with the lift actuator, so I need to cut a section out and move one of the hinges.
Hoping to replace all that cheap setup with welded box section and bearings though in due course.
Cretster:
Getting this sodding thing into the house is going to be interesting once it's built. Was hoping to keep it so that it could be assembled in situ as completed modules but not looking that easy to do. ::)
Certainly not fitting any electronics to it until it's in place (other than motor control), which I need to figure out.
Cretster:
I think this is all I'd need for controlling the direction of the top half of the cabinet actually, linking the power supply to the motor?
http://www.ebay.co.uk/itm/201255011472?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649
Should be the same for the ram that hopefully will move the steering wheel in & out of position too, but I've not got the measurements/angles etc quite right for getting that all figured out just yet.
BadMouth:
--- Quote from: Cretster on January 27, 2015, 07:15:40 pm ---I think this is all I'd need for controlling the direction of the top half of the cabinet actually, linking the power supply to the motor?
http://www.ebay.co.uk/itm/201255011472?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649
Should be the same for the ram that hopefully will move the steering wheel in & out of position too, but I've not got the measurements/angles etc quite right for getting that all figured out just yet.
--- End quote ---
Any double position, double throw switch that can handle the current would do.
The one you linked to is just pre-wired for that purpose. For that price why not.
If you want choreographed movement of multiple things, you'd need a motor controller.
https://www.pololu.com/category/94/pololu-simple-motor-controllers
I used one of these for my monitor rotation. It can be controlled via batch file or autohotkey script.
You might have to add a heatsink depending on how much current you're pulling.
If going that route, I'm thinking a switch under a cover wired to your keyboard encoder which triggers the script.
Might require an emergency stop. :D
Cretster:
Thanks - have got an estop I could use from my partly finished CNC machine conversion.
I've bought a couple of those switches but unwired and I'll add that myself as there didn't seem to be pre wired ones in the UK so I'd have been waiting weeks.
Yeah I use Pololus on my 3D printer and on a timelapse rail i built so I like those, although with these being normal 2 wire DC motors I think I need a more basic DC controller like LN988 or whatever the last one I got was....
I can then use an arduino to control the timing of each event potentially rather than have to press each button manually. The difference will be the seat section can probably be released and lower smoothly down on gas struts but will have to be lifted by hand back up again.
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