Need help! Motorized in-dash LCD enclosure semester project.
Short story: I got tired of not having an LCD enclosure available, then I got a little scared by the price of what IS available, then I realized that I'm a senior mechanical engineering student and that I should just design my own :tard:
I've posted about this project before in other threads, but here's my official request for input on its design: What would you like to see in a motorized in-dash LCD enclosure?
Please keep in mind that I won't be selling these, but I will post (for free) blueprints and instructions on how to make it.
So here's a little more of a story. I turned this into a semester project for my Mechanisms class. This means that I need to come up with a feasible design by April or else I fail the project. Therefore, come July (the time I expect to be fully recovered from all the graduation parties) I will have the complete blueprints up.
--------Here's what I have so far--------
- Lilliput: My screen is a lilli, so that's what I'll design it to work with primarily. I haven't researched what a Xenarc's innards look like, but don't worry about telling me because I'll take the initiative to do it. If all is well, I'll make sure it works with both types of screens.
- Dimensions: I'm keeping my stock stereo so I need it to fit in a single DIN slot. I also want it to retract about 1/2" so that I can fit a CLCD on it and THEN be able to cover it for the it's-factory-so-it's-not'worth-stealing look. ALSO!!! I want to be able to mount my slim slot-loading DVD drive above it and hopefully have some room for a few small buttons to control contrast / brightness / etc. This is secondarily important. The screen will fold, the DVD drive might fit.
- Motorized: This doesn't really affect me, but it seems like everyone else wants it to be motorized so what the hell; I'll do that too. I would be fine if it were spring loaded so that I press a button and it opens and I manually push it closed when I'm done with it.
--------Here's what I need to know--------
1) Dimensions: It's going to be tight. How much room do most people actually have inside their cars?
a) Is there a little room to go deeper than a standard DIN slot?
b) What if it protruded above the DIN slot or below it? What if it only protuded at the edges?
c) How far do people need it to stick out before it folds up? (see attached image)
d) Do most people have something above their DIN slots to rest the screen on? (see image) The mechanism will not be strong enough to hold the screen up by itself and not bounce all over the place as soon as you press it. I'd like to rest the other end of it against something to stabilize it.
e) How important is it to have the screen pivot left or right? How much does it need to pivot?
2) Facade: How would you like it to look?
a) What controls would you like to see on the front? (ie: brightness, contrast, power, retract/extend, self-destruct, etc)
3) Construction: How easy should it be to make? I'm assuming people have toosl such as: drills, saws, dremels or files, screwdrivers, soldering irons, etc. The reason I ask is that I can design parts around tool requirements. It would be great if everyone had access to a vertical miller, but I know that a lot of people don't. Heck: I won't have access to one after graduation :(
a) Do you have access to a vertical miller?
b) A sheet metal brake?
c) A tap/die set?
d) A band saw?
4) Other stuff: Things I'm too lazy to categorize further.
a) What should be on the interface? (VGA/USB/Power jacks, etc) How important is it to have a good interface? Is it acceptable to just run the normal Lilli cables out the back?
b) How fast do people want it to open? Close?
c) How many people want it to be able to fold up OR down? (May require some disassembly/reassembly) [I cast the first vote here, mine will fold down instead of up].
d) How should it behave? Do you want it to always fold out when your computer is powered up or do you want to be able to control it?
e) Do you really care if it's motorized? What if it was on a spring to push it out and you reset it manually?
f) Should I design it to use more expensive, durable parts or should I use cheaper, less durable parts?
g) What kind of use would you put it through? Open/close 2x per day 5 days/week, for 5 years? Open/close 20x/day, 7 days/week for 20 years? Just make a guess please.
5) Bottom line: what do you think it should cost if you are buying the parts and making it yourself?
Send me comments! The more feedback I get, the better the end product will be.
This should work hmmmmmmm.......
I am getting this ready in the next 2 weeks. i have used a motor drive from a scaner and made it just like a mini garage door opener with a belt drive. the display is mounted to a frame with 4 bearings that roll in a track. the front pivot point will articulate the display up when it comes to the end of the housing. when the front bearings hit the front of the housing the motor will still drive the arm with pivots down forcing the display to rotate up. this should work give me any more ideas if you can. this is my first posting and will show you pictures of the rest of the progress as it comes.
this would be more compact
this may work better and have more power to move the display up and more compact.