Why use servos instead of steppers?
I understand that the 2:1 or 3:1 gives you more torque but you could do this with steppers aswell.
I have noticed servos could be used for positional feed back however does Mach even support it?
Wouldn't a closed loop stepper system with rotary encoder do the same thing as a servo and glass scale setup?
Many rf31 builds control z height by mounting a stepper to the fine feed knob on the head,micro kinetics also does this with their rf45 models opposed to mounting a stepper/servo to the column (most builds here as well as industrial hobbies). Is one of these systems more advantageous
On one hand you get greater travel with the column mounting however we are talking about a mill not a fdm machine no one mills with a 8 " long end mill anyway.
So using the fine feed seems more reasonable unless the ram isn't very sturdy.. this gives about 4.5" of travel. Bridgeport does the z travel this same way on their eztrak mills.
As far as ballscrews go most clones have trapozodial acme, ball screws are prolly a must even double nutted for back lash comp. Is chai good to go to or is there a better player in the game for45 style mills?
Noticing micro kinetics 45 XL has hand wheels in x and y travels still are there any problems with this a motor being turned is a generator so if I used a mill like that manually to make a part with the electronics off would this do damage to the electronics. My experience with both eztraks and causing kondias makes me more comfortable manually edge finding and finding centers of bores. Some operations and making of features are just easier to do manually.
I know that the 45 style mills come in many flavors but does anyone know of xy and z drawings out there to at least get ideas from for motor mounting options.
I understand that the 2:1 or 3:1 gives you more torque but you could do this with steppers aswell.
I have noticed servos could be used for positional feed back however does Mach even support it?
Wouldn't a closed loop stepper system with rotary encoder do the same thing as a servo and glass scale setup?
Many rf31 builds control z height by mounting a stepper to the fine feed knob on the head,micro kinetics also does this with their rf45 models opposed to mounting a stepper/servo to the column (most builds here as well as industrial hobbies). Is one of these systems more advantageous
On one hand you get greater travel with the column mounting however we are talking about a mill not a fdm machine no one mills with a 8 " long end mill anyway.
So using the fine feed seems more reasonable unless the ram isn't very sturdy.. this gives about 4.5" of travel. Bridgeport does the z travel this same way on their eztrak mills.
As far as ballscrews go most clones have trapozodial acme, ball screws are prolly a must even double nutted for back lash comp. Is chai good to go to or is there a better player in the game for45 style mills?
Noticing micro kinetics 45 XL has hand wheels in x and y travels still are there any problems with this a motor being turned is a generator so if I used a mill like that manually to make a part with the electronics off would this do damage to the electronics. My experience with both eztraks and causing kondias makes me more comfortable manually edge finding and finding centers of bores. Some operations and making of features are just easier to do manually.
I know that the 45 style mills come in many flavors but does anyone know of xy and z drawings out there to at least get ideas from for motor mounting options.