Cnc Stepper Motor

Where can I get a stepper motor.?

Checked ebay and they have a small selection, and they are quite costly. Are there any things around the house that contain stepper motors, I have read that old Mac printers have them, but those are hard to find these days. I need 3 of them to build a cnc machine, any help appreciated.

You can find step motors in old (or new) printers,scanners,fax,etc!!!
Sorry,after I had read your full question I see what you mean!!
I saw a CNC machine on DIY instructables!!!
Go to www.instructables.com and make a research for it!!!

Medfusion Assembly Stepper Motor $67.36 Assembly Stepper Motor for Medfusion pump

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Cando® Vestibular Stepper $28.45 Double chambered inflatable stepper can be used for lower extremity exercises, balance training and vestibular orientation. It can be used to improve coordination and motor skills. The two chambers are connected by a valve which adjusts the level of difficulty.

UGTFB10 B Frame cnc Lower Motor mount $5 UGTFB10 B Frame cnc Lower Motor mount is in stock and ready to ship from TrendTimes.com. Our toy stores sell UGTFB10 B Frame cnc Lower Motor mount for the best price of $5.00 and personal shoppers are standing by to assist you.

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Cando Vestibular Stepper $17.73 Cando vestibular stepper can be used for lower extremity exercisesExercise ball for balance training and vestibular orientationBall improves coordination and motor skills Features two chambers by a connected by a valve which adjusts the level of difficultyFSA Eligible with a physician's letter

Side Stepper $8.63 Side Stepper

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Easy CNC Stepper Motor Driver

please tell me the some specifications of stepper motor used in cnc lathe.?

LOCATION
DIMENSION

Bed dovetail angle
55.5 degrees*

Lathe bed to spindle centerline
1.75"

Lathe table surface to spindle centerline (calculated)
.940"

Headstock spindle nose internal taper
#1 Morse

Lathe tailstock internal taper
#0 Morse

Headstock spindle external thread
3/4-16

Pulley groove side angle
19°

Table T-slot centerline distance (lathe and mill) 1.5"

T-slot nominal dimensions**

Slot width, top: .25"
T width, bottom: .40"
Upper slot depth: .10"
T Slot depth: .10"
(Total depth: .20")
Leadscrew thread pitch, inch
(Lathe, mill X and Y axes = 1/4-20, Mill Z axis = 3/8-20)
20 threads per inch or .050" travel per revolution (handwheels divided into 50 increments of .001")
Leadscrew thread pitch, metric
(Lathe, mill X and Y axes = 6.3 x 1 mm, Mill Z = 10 x 1 mm)
1 mm travel per revolution (handwheels divided into 100 increments of .01mm)
Leadscrew thread directions Right-hand: Lathe crosslide, Mill X-axis
Left-hand: Lathe leadscrew and tailstock screw, Mill Y-axis and Z-axis

ALLOWABLE TOLERANCES

Spindle Runout (at spindle nose), Maximum allowable (Most are within .0002-.0003") 0.0005"
Spindle End Play (adjustable with preload nut), Factory Settings with 2800 RPM Pulleys: 0.0002"
with 10,000 RPM Pulleys: 0.0003"

Self-Centering 3-jaw and 4-jaw chuck runout 0.003" or less
Leadscrew thread pitch accuracy ±0.001" per inch of travel
COLLETS

Sherline WW Collet body diameter 0.312" to 0.313"
8 mm WW collets (by others), body diameter 0.314" to 0.315"
WW and 8 mm collet thread .275-40
HEADSTOCK BEARINGS

Designation/stock number (ZZ refers to "double shielded") 6004ZZ
Size of bore 20 mm (0.7874")
Tolerance of bore 0.0004"
Outside Diameter 42 mm (1.6535")
Tolerance of OD 0.0005"
Width 12 mm (0.4724")
Bearings 9 balls, 1/4" dia.

ELECTRIC MOTOR SPECIFICATIONS FROM MANUFACTURER

• Type of enclosure: Totally enclosed, non-vented

• Duty rating: Continuous--10 oz. in. at 6100 rpm, .85 amperes; Intermittent--30 oz. in. at 5500 rpm, 1.75 amperes (5 minutes on / 15 minutes off)

• Output horsepower: .06 KW (60 W) at 10 oz. in. / 6100 rpm

• AC voltage (input): Normally 115 VAC, 60 Hz, Single Phase to rectifier (Sherline electronic speed control converts any input from 100 VAC to 240 VAC, 50-60 Hz.)

• DC voltage: 90 VDC to motor (60 Hz)

• Speed in rpm: 6100 rpm continuous

• Class of insulation: Class A, 105° (C.) insulation system

• Normal full load current: .85 amperes

• Starting current: 17 amperes instantaneous starting current (<100 milliamperes). This is also stall current in True RMS

• Max current at time of changeover from lower speed to higher speed: Depends on load

• Type of motor: 3.00 inch (outer diameter) sub-fractional horsepower brush-type permanent magnet motor

• Temperature rise at ambient 50° C.: Less than or equal to 45° C.

• Motor frame size: 3 inches

• End use of motor: Drive unit for lathe or mill