The following picture sequence is of the installation of a 
Newall C80 DRO kit on a Monarch 10EE – 1968 version.  The 
kit is actually intended for a Hardinge HLVH lathe, it 
includes 2 Microsyn 5 linear encoders which measure to .0001”.

10ee_newall_dro_01.jpg
This picture is the location I am preparing to drill on the 
carriage.  I was completely afraid of puncturing the oil lines 
contained within.  I searched Practical Machinist – Monarch 
forum to find another picture of a DRO installation and determined 
it was safe.

10ee_newall_dro_02.jpg
Here is the completed installation of the cross-slide encoder.  
My first consideration was to mount the encoder to the 60 degree 
dovetail slide but I eliminated this possibility because the encoder 
cable would be moving axially each time the cross-slide was moved 
and I was worried this would lead to wear.  I used some of the 
supplied bracketry with the Newall kit.  The scale is anchored at 
the left end only, I fabricated an additional 60 degree dovetail 
“wedge” that’s tapped 10-24.

10ee_newall_dro_03.jpg
10ee_newall_dro_04.jpg
These are photos of the bracket I concocted to mount the scale that 
measures the position along the bedway.  The bracket is Tig welded 
from mild steel.  I drilled & tapped 6-32 for mounting the scale…this 
gave some clearance for adjustment.  The top two holes are drilled 7/32 
for 10-24 button head screws that go into the bottom of the carriage.  
Newall specifies the encoder must be parallel to the ways within .002” 
and so I indicated the bracket with one screw holding it

10ee_newall_dro_05.jpg
Here is the mounting position for the bracket under the center of the 
carriage.  Newall specifies the encoder must be parallel to the ways 
within .002” in two planes and so I indicated the bracket parallel with 
one screw holding it before transferring the second hole to the machine.

10ee_newall_dro_06.jpg
Here is my mounting for the digital display and CPU.  I bent some ¾” dia 
CRS rod into this shape, which kept the display at a comfortable level and 
close to the chuck.  Previously I was used to looking at the carriage 
indicator and the cross-slide dial so I wanted to keep the display close 
to those locations.  The long shaft is shown in my drill press for drilling 
and tapping the end of the shaft for M10 to mount a spherical end for 
adjusting the display.  The bent rod was simply not safe to go into a 
lathe for drilling and tapping…had I been more savvy with the bender I 
could have done this beforehand…however this was basically done 1 bend 
at a time.

10ee_newall_dro_07.jpg
This is the mounting for the ¾” dia rod.  These holes were already tapped 
into the machine base…a splash shield I believe based on identical holes 
on the other side of the chip pan.  These are 5/16-18 holes 1-1/2” apart 
on center.

10ee_newall_dro_08.jpg
This picture is taken from overhead and shows the completed bracket assembly 
which clears the taper attachment and all parts of the carriage.

10ee_newall_dro_09.jpg
The mounting for the DRO display/CPU showing the twin ball setup.

10ee_newall_dro_10.jpg
Here is the end result of mounting the long scale.  Note one shortcoming of 
my design is that I wasn’t able to include the chip shield (aluminum angle).  
However since the carriage is so wide and the tube scale is so close to the 
bed I will be OK.

10ee_newall_dro_11.jpg
Completed view of the setup.  I’m not sure I’m totally satisfied with the 
loop of wires in back of the display.  This may get moved down behind the 
machine and out of the way.

10ee_newall_dro_12.jpg
Operator viewpoint in commonly used position on the bedway, showing worklight 
which is under my line of sight to the display.


Matt Isserstedt
16Jan2006
mattofvinings ATT aol DOTT com