Motor to move a miniature Door

[benlim90]

Should i use a ac or dc motor for this project? detail explanation required which model of motor should i used to move the miniature door, how to reverse motor rotation in dc and ac motor using changeover switches or relay switch? Forward(11) & Reverse (00) ? can i get the schematic to change the polarity of the dc/ac motor? and which model ac/dc motor?

 

[benlim90]

need help please !

 

[panic mode]

before asking for details, you should be providing details (size, weight, speed, reliability/maintenance etc.)
if it is small, small motor should do the job.
most small motors are DC. nice thing about DC is you can reverse motor direction by swapping polarity.

 

[lebevti]

if the motor is AC, u can reverse rotation by swapping 2 of the 3 mains lines that you hook up to the motor

if the motor is DC, you can reverse rotation by using either a shunt or separately -excited motor (NOT a series motor)
in this case, you just flip the polarity of the input if it's sep-excited
you flip the motor terminals (but not the field circuit) if it's shunt

for a miniature door, it sounds like a low-power kind of deal, just use DC...it's easier, more widely available, and easy to flip polarities by just using some kind of relay scheme to the input.