could you use 3 outputs from a parport to control the sync. motors? an enable pin, and then 2 of them on H bridges pulsing 90 degrees out of phase to run the motors? also, am i missing something big here, or would these motors run kinda like bipolar steppers, but designed to turn constant speed instead of being more position oriented? wondering if a stepper drive would be easily adaptable to run a rotor.
another thought regarding the 'home', how hard would it be to put a little microswitch on the hard stop so just as it's about to hit the hard stop it can close the switch and gently coast into the stop instead of whackin it full speed? also, MPJA.com has proximity switches for $20, not sure if that's expensive or not in todays market, I just know ive seen receipts at work for replacements on machines that make the $20 look cheap. I'm interested in a project like this for aiming wifi antennas with tight radiation patterns, like 7 degrees or less. also, a coworker has a rotor with a broken control box, if something was simple enough to impliment he might swing towards something like that rather than just not watchin certain channels. last thought regarding the UPS / generator. couldnt you use an old laptop with a rebuilt battery pack in it, and keep it in standby and have it wake when power goes out? not sure off hand how you could impliment the wake, i have no idea how the wake on LAN connector on the motherboard works, and dont know if you'd be able to poll the parport while in sleep. maybe a modem with wake on ring, and somehow send an AC signal to that when the power drops off? I've never implimented wake on LAN or wake on ring, so all of this is just wild guesses on my part. but I'd definitely like to see what you come up with, if nothing else im sure it's be a good read or some pretty pictures to gander at. On Fri, Nov 28, 2008 at 12:07 PM, Kirk Wallace <[EMAIL PROTECTED]>wrote: > On Fri, 2008-11-28 at 06:38 -0500, Mark Wendt (Contractor) wrote: > ... snip > > Kirk, > > > > Just curious, but how would it boot with a power outage, and > > the generator not up and running? For a generator control I'd leave > > the machine up and running all the time, plugged into a decent sized > > UPS. That way, there's no lag in the boot up time, the UPS would > > keep he PC up and running until the generator came on line, and the > > PC could still monitor the power. Keep it simple. > > > > Mark > > Having a UPS(s) to bridge the time between mains outage to generator > output was part of the plan. I would bridge just the equipment needed. > If I can boot the generator controller in a minute or two, it won't need > to be on all of the time. I'd like to save energy wherever I can. > > Thinking a little more, I guess I could use something like a solar > inverter as a UPS which would have a fair amount of intelligence built > in. Or, I could try to get the Ubuntu/HAL computer to do the UPS and > generator function together, in which case it would need to be on all of > the time. This is getting more complex. > > But, ... UPS's are complex due to having to come on-line instantly, > which a solar inverter might not be designed to do. It would be nice to > have one unit that backed up power to the whole house, but I may be > better off having stand alone UPS's on just the critical equipment. > > I haven't put enough effort into this yet. > ----------- > Kirk > http://www.wallacecompany.com/machine_shop/ > > > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge > Build the coolest Linux based applications with Moblin SDK & win great > prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
