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| Ed_McCarron:
http://www.allelectronics.com/cgi-bin/item/DCM-287/400400/POWERFUL_RIGHT-ANGLE_DRIVE_DC_MOTOR_(USED)_.html 24vdc, 46RPM. Cheap, slow-ish, and pretty strong for its size. Nice large shaft. Looks easy to mount. |
| bluevolume:
--- Quote from: Ed_McCarron on October 10, 2007, 08:09:06 am ---http://www.allelectronics.com/cgi-bin/item/DCM-287/400400/POWERFUL_RIGHT-ANGLE_DRIVE_DC_MOTOR_(USED)_.html 24vdc, 46RPM. Cheap, slow-ish, and pretty strong for its size. Nice large shaft. Looks easy to mount. --- End quote --- My question here is still how do you plan on powering that motor? I don't see how you can get around having to buy another transformer. |
| Jimbo:
Wow... what a great response! Thanks for your suggestions everyone, what an enlightening thread. :) My cab's width is 28", and I can't really go wider than that else a) it won't fit through doors and b) it won't fit in the gap I have set aside for it. As already mentioned the bike chain idea is great, simply attached to a sprocket, but in my case it looks like I'd have to give up more space for the chain to fit round the monitor wheel... which, unfortunately, is space I can't afford in my build. Cornchip's rope idea on the other hand is awesome and looks like it would work great in my situation. I'm thinking a single motor (as sac01 suggested) mounted in one of the bottom corners would do the trick. I could probably use a bit of string and wind both ends round a drum in different directions (I'm thinking an empty cotton reel would be perfect) so one unwinds as the other winds as the motor turns. Man I love this idea! :) I'm going to try and find a cheap car window motor, or failing that I'll get hold of a cheap electric drill and wrangle the motor out of that instead. Thanks again for the ideas and suggestions, there's now light at the end of the tunnel. :) |
| DaOld Man:
A car window motor is very powerful, thus it draws a LOT of current. Not sure how much, but I used to have a Firebird that had the flip up headlights. One of the motors failed, I bought a replacement and played around with it a bit before installing it in the 'bird. Using a 10 amp battery charger for a power supply, it would peg out the amp meter on the charger. If you could use a motor that wouldnt draw more than a 200 watt computer power supply you could use an old AT style power supply. I think it has +12 and -12 volt that could be used to get 24 volts. (Its been awhile so I may be wrong on this.) What about a windshield wiper motor? Seems like they would be less current demanding. Looks like it's time to do a google search on motor current amps. As someone mentioned earlier, you need to account for any high magnetism the motor may discharge, this is bad for crt's. I really want to design one that turns automatically, based on the game you are playing. Ive been experimenting with GLaunch. GLaunch can write a pre-command before running the game. I tried triggering a VB6 program that could turn on a printer pin, using it for an output to turn on the motor, but triggering the VB6 program screws up the vram file of the game. So that aint gonna fly. |
| Ed_McCarron:
--- Quote from: bluevolume on October 10, 2007, 09:20:09 am --- --- Quote from: Ed_McCarron on October 10, 2007, 08:09:06 am ---http://www.allelectronics.com/cgi-bin/item/DCM-287/400400/POWERFUL_RIGHT-ANGLE_DRIVE_DC_MOTOR_(USED)_.html 24vdc, 46RPM. Cheap, slow-ish, and pretty strong for its size. Nice large shaft. Looks easy to mount. --- End quote --- My question here is still how do you plan on powering that motor? I don't see how you can get around having to buy another transformer. --- End quote --- It'll run at 12v, with reduced speed and torque. It'd probably still be enough to spin the monitor, considering the gear and friction-drive reductions. |
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