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Rotating monitor construction *Project finished*
koz319:
Nicely done!
DaOld Man:
Thank you.
I tried touching each input to power supply positive, using a 10 K resistor, and it works great.
This should allow anyone to use a simple SPDT switch to control it, or two pushbuttons, but one would have to hold the pushbutton until monitor revolution is complete.
Of course you could still use pushbuttons with small relays to hold the input on until the monitor revolution completes.
I am going to play around with it a bit using the nutchip, but I intend my finished product to use the computers LPT port and the program you wrote.
This H Drive is very compact, and it should be cheaper to build than using the relays in my very first drawing, (See this thread) BUT a person needs to have good soldering skills and know a little about electronics before building this H drive. I highly suggest using one of the kits you mention on your site, or the completely put together H drive.
As far as the relays go, if someone can wire a control panel, they should be able to easily wire up the relay drive circuit.
But this H drive only measures about 1 1/2" by 2 3/4" by 1 1/2" deep so it will fit in many tight places where the relay circuit would not.
Here are some datasheets:
TIP125
TIP120
PN2222A
DaOld Man:
--- Quote from: Cornchip on November 03, 2007, 08:41:39 pm --- Nice work on the H Drive. I still can't wait to try this myself.
About your pics....try changing the image size to something like 800x600 or even 640x480. It changes the file size from 500kb's to 70kb's. That should help your post sizing issues.
Cornchip.
--- End quote ---
Thanks Cornchip. I was trying to get better pics with my digital cam so I set it to default. Th eimage size was 2000 something by 1000 something. (I think). Anyway it was the largest the camera could do.
But the pictures look a lot better. Lets see how this one looks:
(H Drive connected to motor and power supply.)
DaOld Man:
I really like this H drive. I can see several uses for it.
Here is a circuit I drew from paint (sorry, another crappy paint picture).
This picture shows how easy it would be to hook a return to center type switch to the H drive.
Kind of like you did on your cab, CornChip..
Cornchip:
Wow...this is looking more interesting. Does this allow me to keep the switch 'as is' and have the ability to auto rotate using koz319's software? (provided you don't try to use the switch and H Drive at the same moment).
Also...is the pdf file from koz319's link the exact screen to make the H Drive with no changes keeping my switch? I think I might just be able to get these parts local to where I am and avoid Digikey.
Cornchip.
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