this is a power feed i have been building. it uses a motor and gearbox from a dewalt drill. the gearbox has 3 speeds and metal gears. i had to make shifters to replace the shift drum that was on the drill. it has a clutch do engage and disengage the lead screw. i have a motor controller and switches for controlling the motor coming in the mail. just need to get the electronics sorted and maybe give it some paint to match the mill.
http://www.youtube.com/watch?v=XWve_gJH6Dw&feature=youtu.be
http://www.youtube.com/watch?v=G-QZ4Y5pVlo&feature=youtu.be
in the video it is running off of an atx power supply on the 5V rail. on 12v it goes pretty quick, but the power supply trips sometimes if i just connect the motor from a dead stop(atx power supplies have short circuit protection.) hopefully when i get my pwm controller i can use 12v. the power supply can handle something like 20A at 12v, and 30A at 5v. the motor is from an 18v drill.
http://www.youtube.com/watch?v=XWve_gJH6Dw&feature=youtu.be
http://www.youtube.com/watch?v=G-QZ4Y5pVlo&feature=youtu.be
in the video it is running off of an atx power supply on the 5V rail. on 12v it goes pretty quick, but the power supply trips sometimes if i just connect the motor from a dead stop(atx power supplies have short circuit protection.) hopefully when i get my pwm controller i can use 12v. the power supply can handle something like 20A at 12v, and 30A at 5v. the motor is from an 18v drill.