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MRC8-86-118-3jaw motorized rotary 8 inch chuck - MRC8-86-118-3jaw motorized rotary 8 inch chuck.  Complete ready-to-run kit with new DRO display.











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MRC8-86-118-3jaw motorized rotary 8 inch chuck

MRC8-86-118-3jaw motorized rotary 8 inch chuck. Complete ready-to-run kit with new DRO display.

List Price:   US $4,450.00
Our Price:   US $3,995.00
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MRC Motorized Rotary Chuck

Use this rotary chuck for all kinds of light machining and precision turning, capable as a 4th axis.  RPM range is 0 to 70 with light loads, possible higher speed. Great for precise applications such as laboratory, production part rotation, inspection, indexing to precise angles, laser marking, angular testing and measurements. The intelligent programmable controller is integrated with motor--no messy wires.

Robust as a stand-alone unit with several modes to automate your rotation and indexing, and can be controlled by other CNC controllers.  Excellent repeatability due to the precision spur gears.

Includes NEW DRO Digital Readout display, mounted on motor--saves you $150. Makes your operation incredibly wonderful! Gives you instant display of degrees to 4 decimal places. The DRO shows most motor parameters at a glance, also RPM.

You can connect a smart phone or PC, using the USB adapter we give you. 2 nice methods:

  • Use smart phone or PC.
  • you can type N, number of steps to rotate, and type G for Go.
  • the number of motor halfsteps per revolution is 5,280, with 13.2 gear ratio, which is 14.667 hsteps per degree.
  • if you want to move 30 degrees, then you type in N then 0000440. 440 is 30 deg x 14.667 steps/deg.
  • then type G for Go.
  • keep the smart phone plugged in to make any rotation you want.
  • BEST--use built-in Joysticks.
  • use smart phone once, to change the values for each of the 10 Joystick switches to the angles you want, then unplug the phone.
  • example: change the Motion Profile for Joystick J1 to N=0000044 for 3 degrees.
  • then each time you push J1, the table rotates that direction exactly 3 degrees.
  • then change J2 to 15 deg, J3 to 45 deg, and J4 to 90 deg.
  • then do the same for Joysticks J6, J7, J8, and J9, for other direction.
  • J5 is already set to continuously rotate forever. You can stop the motor by pushing center Joysticks J5 or J10.
  • Now you have any 4 angles, plus continuous, in both directions!
  • If you only go in one direction, then you can set all 10 switches for same direction, and then have 10 different angles.
  • By the same method, if you hook up 2 of our SW1-2D handy external waterproof switches, then you can have 4 more, a total of 14 rotation angles.  that's more different angles then most customers need.
  • Example: if you need to drill 12 holes, 30 deg apart, that can be done with just one switch.  set N=0000440 for 30 degrees, and set R repeat to 00011, which is run once, then repeat 11 times. set little t=05000 (for example) to pause 5 seconds in between so can drill a hole. you can set the time delay from 1 millisec to 65+ seconds.
  • then unplug the smart phone, never needed again, except for changing values.
  • With the Joystick method, nothing is dangling, no smart phone, no keypad. you can do all of the above using a laptop or PC, too. The DRO shows you degree, and the X command allows you to set any angle for your reference.

    Look in Serial Programs for all serial communication details. We highly recommend a new serial communication app named Serial USB Terminal by Kai Morich. Download and install this app by using Google Play Store. Works well with our USB-TTL-3pin adapter. It also works with Arduino with CDC driver. The Settings tab on the app is intuitive and easy to set for 115,200 baud, no parity, 8 data bits, 1 stop bits. wonderful!

    The MRC8 8 inch rotary chuck is a CNC ready-to-go system, and includes:

    • Heavy-duty steel rotary chuck with 3 jaws
    • Precision stepper motor and integrated controller with built-in 10 Joystick switches for 10 independent standalone motions.
    • Motor and gear drive use ultra-precision spur gears and are fully enclosed.
    • 1 TTL 3.3v serial ports built-in, and one 39" (1m) USB-TTL-3pin adapter serial cable.
    • Two 4 inch cables with 3 pin housing and crimps for general DIY inputs, unwired at open end.
    • 24 volt AC/DC power supply and AC cable, 50/60 hz, 100-240 VAC, works anywhere in the world.
    • Key ring with 10 metric hex key wrenches, 1.5 to 10mm.
    • 12 x 20 inch high temperature transparent silicone sheet for water spray protection.
    • Pre-packed for life with top quality high pressure black Moly-Lithium grease/lubricant.

    All Excitron size 86mm stepper motors have 400 half-steps per shaft revolution, and the 486:1 gear ratio gives you an incredible 5,280 steps per revolution.  This high resolution is 0.07 degrees per half-step. Stepper motor top speed is over 8,000 half-steps/second.

    Spur gear box backlash is zero because we mount the large gear directly to the chuck.  You can adjust the motor spur gear backlash.  Usually backlash is +-.002", and even this can be compensated for electronically in CNC programs to reduce backlash to zero.

    Nothing else is necessary.  You can add our matching tailstock, and a live center. Browse Documentation link on home page for 3D solid models and other files.

    Gold plated connectors and printed circuit boards for ultimate reliability, heat flow, and performance.  Each Controller is fully integrated with the stepper motor, producing the most compact and powerful intelligent motor drive available.  All X Controllers use exactly the same command set, to give you simplicity.  These units offer the first total 100% motor drive solution, allowing easy plug-n-play for machines, CNC, robots, actuators, vehicles, and all equipment.

    You easily control how your stepper motor operates in these modes:

    • Serial Commands:  send and receive via USB using the included USB-TTL-3pin cable adapter, connect directly to arduinos and microcomputers.  Connection with PCs, PLCs or Labview work well.
    • 2 built-in Joysticks:  10 different motions built-in, and are changeable.
    • Home:  Home command H runs Motion Profiles 02-05, exactly as you need.  You can also set the Repeat Home feature, whereby Home repeatedly runs 4 Profiles at power-up over and over.  In this case, your computer is not needed.  You can use also inputs to control how and when these profiles run.
    • Input Profile Mode IPM:  each of the 4 input pins give you random selection of 3 motion profiles each, by simply pushing external switches or external control signals.  In2 and In3 are analog or digital.
    • Driver (CNC step/dir):  motor steps each time when an external STEP occurs, in the direction set by DIRECTION.  CNC programs usually output these signals on a PC parallel port.
    • CNC/Gcode:  run 1-8 Excitron motors using popular Gcode.  One Excitron motor is the master sending TTL serial commands to other Excitron motors.  Master motor can read, view, save, and run Gcode files.

    See X86 motor webpage for more details.

    You can combine many of these modes, with few restrictions.  All modes allow changing motor speed on-the-fly using J1 and J4, then can save the new speed by pushing J2 while running .  Hundreds of successful customers have created very ingenious motion using these simple "building blocks", as short as 10 minutes.  You can add intelligent repetitive motion to almost any machine.

    Our stepper motors and controllers give you great speed and torque, and many large companies have purchased these for automating various motions.  Click on Testimonials button above.  Contact us for custom rotary tables.

    Ships in 20-24 days after you order and pay.  Free shipping within USA.  We ship to 220 countries.  If shipped out of USA, then we will add $240-900 (estimate), depending on your country.


     



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