Mill DRO with CNC Thrust Collars

NOTE: If using the DRO on a CNC machine, the axis cannot be moved faster than 15 in/min (381mm/min). The DRO was designed for manual use and it will not give a correct position readout at faster feed rates.

Clear selection
    Reset options
SKU: N/A Category: Tag:

Product Description

Upgraded DRO Chip

Beginning August 1st, 2021, all DROs will ship with an upgraded chip. This new chip upgrade allows our Digital Readout to function with our ball screw machines as well as our standard leadscrew machines. We also programmed some upgrades based on customer feedback, like having a Metric display on an Inch machine or having an Inch display on a Metric machine.

The new DRO chip has six different modes to choose from based on the machine type, e.g., mill, lathe, leadscrew, or ball screw, and your preference of either inch or metric display on the DRO.

For more detailed information on setting up the modes for DRO, please see the DRO Mode Instructions.

NOTE: You must make sure you have the correct RPM tach sticker for your machine. Use a 6-pulse (P/N 81510) tach sticker if your machine is a leadscrew machine or a 5-pulse tach sticker (P/N P/N 68060) if your machine is a ball screw machine.

This DRO kit comes with CNC thrust collars to allow you to use the DRO on a mill with stepper motors installed. To install CNC stepper motor mounts on a Sherline machine, you must remove the handwheels. Sherline’s digital readout system measures handwheel rotation and translates it electronically into table movement rather than measuring table movement directly; therefore, removing the special DRO handwheels eliminates the DRO function. Some CNC users prefer to have a DRO reading the leadscrew movement to cross-check the CNC input to ensure that the axis has actually moved the amount of the stepper motor input.

Most full-size shop mills used by machinists are now available with a digital readout. They are popular because they make your life as a machinist much easier. Readouts on the X- Y- and Z-axes can be reset to zero at any time with the push of a button. From there, as you move the handwheels, you can read the table position to 3-1/2 decimal places (.0005″) on the digital readout (Metric versions read to .01mm). You no longer need to count handwheel revolutions or make difficult calculations when cranking in a negative number. Kit includes two 2″ handwheels with encoders for X- and Y-axes and a 2.5″ handwheel/encoder unit for the Z-axis. Also included: digital readout box with LCD display, RPM sensor, power supply, cables, stand, and all necessary mounting hardware. No hole drilling is required to mount.

As long as we were redesigning the electronics package, we went the extra step to include an RPM readout, adding function to the package. The sensors are easy to install and require no modification of your Sherline mill. A two-axis DRO package is also available for the lathe. A three-axis package for using the lathe with the vertical milling column can be purchased, or a third axis can be added later if you add the vertical milling column to your lathe. For those with both a lathe and a mill, the electronic readout box can be shared between both machines to offer cost savings if you buy just the additional handwheels and cables for the second machine.

220-240 Volt Electrical Current

The DRO power supply automatically switches from 120V to 240V for countries with 220-240 volt electrical current.

NOTE: The DRO can be ordered on any new machine as a factory-installed option. The digital readout handwheels replace the standard handwheels that would normally come with the machine. If you purchase a machine with factory-installed DRO, the regular handwheels are not included. If you purchase the DRO as a separate option and install it yourself, you will have the stock handwheels left over.

USE WITH CNC: Though not designed to provide feedback to Sherline CNC machines as a closed-loop system, it can be adapted for use on the rear shaft of Sherline stepper motors for use as a separate readout. See using DRO with CNC page for instructions.

warning-symbol
The improper use of machine tools and their accessories can result in serious injury. Before using this tool, thoroughly read the instructions and make sure you understand its proper and safe use.

safety-glasses-symbol

Always wear safety glasses when operating machine tools.

Download PDF 8100 Instructions

Instructions PDF Download

Download PDF DRO on CNC

Instructions PDF Download

Download PDF DRO Mode Instructions

Instructions PDF Download

81010 Mill DRO box and electronics (complete)
81320 X-axis handwheel, inch (Metric 81322)
81330 Y-axis handwheel, inch (Metric 81332)
81340 Z-axis handwheel, inch (Metric 81342)
81100 Encoder housing w/ wheel and cable
81110 Encoder housing upper cap
81120 Encoder housing body
81130 Encoder housing lower cap
81300 (3) DRO X/Y-axis thrust collar assembly
81280 #2 x 3/8” Self-tapping pan head screw
81270 2-56 x 3/8″ pan head Phillips screw
81500 Tachometer encoder & cable assembly
81510 Tachometer pickup decal
40440 #2 x 1/4” Self-tapping pan head screw
81310 Encoder star gear
81080 (3) Black tie-wrap
81050 115 VAC Power supply/transformer
81150 Stand for readout display box
45013 Z-axis handwheel support screw

DRO Handwheel Installation

Shipping

We do not charge a flat rate for shipping because of the variations in weight for our products. Instead, we charge you what the shipping company charges us. Our website uses a shipping calculator based on the daily rates for USPS and UPS based on the weight and destination of the shipment. You can also have us use your UPS/FedEx account number to charge your shipping. Just enter it in the appropriate box on the checkout page.

Domestic orders are shipped Monday – Friday. Expedited orders must be placed by 9 am PST to ship the same day.

Orders shipping ground have a processing time of 7 working days for domestic orders and 14 working days for international orders. CLICK HERE for more information on our shipping and order policies.

Returns

Most merchandise can be returned within 30 days of the purchase date. A refund will be issued to the original form of payment at the original selling price. View our complete return policy and/or start your return online here.