Automated Door ( a miniature version of a door) School project

[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]

really need some guidance.

 

[KeepItSimpleStupid]

How miniature? Doll house? Cat door? Dog door? Size? Swing? Sliding? Weight?

 

[benlim90]

just a miniature sliding door. sorry wasn't being specif enough

 

[KeepItSimpleStupid]

Something like this, right? https://www.automaticchickencoopdoor.com/

OK, so it's sliding. One door or two?

How big? h x w x thickness

I'd hate the motor to be 5x as big as the door!

 

[benlim90]

its one door, left to right. I now found out that i need a motor ic to control the orientation of the motor. the door size hasnt been build yet, so i was hoping u could tell me the h x w x t for a cheap motor, i dont even know what gear ratio to go for.

 

[alec_t]

How good is your maths? You need to know (or guestimate) how much force it will take to move the door. Then you can calculate the torque required if a lever or pulley is used. Then you can read motor torque specs to decide which motor/gearbox combo is best matched to your requirements.
Or.... you can get hold of a cheap, small, geared, modeller's motor (from a scrap toy, perhaps) and hope for the best .

 

[benlim90]

is it possible u could give me a schematic of a motor using driver L293 ic to make it move clockwise and anticlockwise

 

[alec_t]

Just google for 'L293 motor schematic'. You'll get lots. Read the L293 datasheet, too.