Digital Position Readout, 2-Axis Mill 3976 (Discontinued)

Easiest to use DRO on the market. More buttons, most intuitive layout--just walk up and operate
5 micron (0.0002") resolution. 1 micron (0.00005") resolution with inexpensive scale upgrade
Clearly-written full-color manual and video training DVD, 3-year warranty
SlimLine 20 mm x 28.5 mm (0.79" x 1.12") scales; you choose the length, up to 1000 mm (39.3")
INCLUDE SCALE SIZES IN SPECIAL INSTRUCTIONS ON YOUR ORDER

Part Number: 3976 (Discontinued)
Weight: 40.0 lb

Price: $599.00

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The Easson ES-12C Two-axis mill package includes everything you need: the display head; 2 glass scales up to 1000 mm (39.3") travel; detailed installation instructions; a detailed full-color operator’s manual; 3-year warranty; display mounting arm; power cord; mounting hardware; and universal mounting brackets.

The package includes your choice of 19 different size scales ranging in travel from 100 mm (3.9") up to 1000 mm (39.3") in 50 mm increments. Optionally, you can choose 1 micron (0.00005") resolution scales for an additional $50.00 per scale.

Operates on 120V or 240V AC.

Chris' Tips

Chris' Tips
You have to tell us which scales you need. This is always based on your machine’s travel.

Here is how to measure your machine’s travel: With the machine off, position the machine to one end of its travel. With a grease pencil, make a mark across where the moving and stationary surfaces meet. The line should be half on the moving part and half on the stationary part. Next, move your machine to the opposite end of its travel, and then simply measure the distance between the marks.

Now, add ¾" to the distance you measured and convert it to mm by multiplying by 25.4. (Or, measure the distance in mm, and add 20 mm.) Round up to the next even 50 mm and that’s the scale you need.

Let’s look at an example:

Measured distance	5.63"	143 mm
Add ¾" (20 mm) margin	0.75"	20 mm
Required scale travel	6.38"	163 mm
Convert to mm	162 mm
Next scale size	200 mm	200 mm

Now repeat this procedure for the other axes on your machine.

Here are the scales needed for a couple machines:
LMS HiTorque Mini Mill: X=350, Y=150, Z=300
LMS HiTorque Bench Mill: X=450, Y=200, Z=350
Most Mini Mills: X=300, Y=150, Z=250

Scale-Based DRO Packages are designed to mount on any machine within the range of the scales. They all come with 'universal' mounting brackets. These mounting brackets are probably all you need to mount the DRO on large machines. On smaller machines (including mini lathes and mini mills) you will probably need to make some mounting brackets. Note that the Bluetooth DRO packages, except the universal models, come with all the brackets required for the machines they support. All scale-based DRO installations require drilling and tapping a number of holes in the machine.

The biggest challenge is usually the cross slide on small lathes and the X-axis on small mills. On small lathes, the answer is sometimes to mount the DRO scale hanging in space behind the cross slide. On small mills, the smaller cross section of the Shooting Star and the DRO Pros magnetic scales can make it significantly easier to mount the X-axis scale behind the table without restricting the table travel. Glass scales are a challenge to mount on small machines.

Specifications

Specifications
Repeatability	2 μm, 0.002 mm, 0.0001"
Resolution	5 μm, 0.005 mm, 0.0002"
Specified Accuracy	6 μm, 0.006 mm, 0.0002" / 50 mm travel
Accuracy / Foot	0.0014" (0.036 mm)
Accuracy / 100 mm	0.0005" (0.012 mm)
Scales Cut to Length by User	No
Scale Technology	Glass
Scale Protection	Coolant & dust resistant
Voltage	120-240 V
Clear to Zero	Yes
Direct Entry of Position	Yes
Inch/mm Display	Yes
Power Off Memory	Yes
Reversible Count Direction	Yes
Find Center	Yes
Bolt Circles	Yes
Bolt Lines	Yes
Preset Points	No
Tool Offsets	No
Radius/Diameter	Yes
Incremental/Absolute	Yes
Calculator	Yes
Arc machining	Yes
Linear Error Compensation	Yes
Made in	China
Warranty	3 years
Phone Tech Support	Free

Shipping

This item ships directly from our supplier in California to you. It might be a day or two longer before it ships, and you will receive it in a separate package from other items on your order. You might receive this item a few days before or a few days after you receive items shipped from our warehouse.