Kirk Wallace wrote: > I am looking into converting an X2 class mini-mill: > http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=44991 > > I'd like to get a feel for the appropriate size for the axis motors. If > anyone has their X2 motor wattage and/or peek/constant torque specs > handy, I'd appreciate getting them. I'm guessing around 200-300 Watts or > 2-3 Nm with 3 to 1 gearing. Thanks. > Yup, the minimill I drag around is the same as the X2. I have 3 different motors on it. I currently use a Pittman 4443 motor (brushless servo) with a 4:1 reduction for the X. I have a Japan Servo motor on the Y, it is 58 Oz-In continuous, also with a 4:1 reduction. You better take the crank handles off the handwheels, they will break your hand! I used to sell these motors while they were available, I still have the data page on my web site http://pico-systems.com/japservo.html I don't know the rated power output of this motor, but it is WAY below 200 W, maybe more like 50 W. You won't get ito too much trouble with a slightly larger motor, but 200-300 W (continuous) motors will move a Bridgeport quite nicely. This motor (I think, never tried it) might be marginal for the Z axis, due to the head weight. I put in an 8 TPI ballscrew where the rack used to go, and also use a 4:1 belt reduction there. However, I have a motor that looked "beefier" but I have absolutely no idea what the specs are on it. I can say this one works fine, but that doesn't give you any data.
Pics are at http://pico-systems.com/minimill.html Jon ------------------------------------------------------------------------------ This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
