EASSON ES 12-B DRO INSTALL ON A PM-833T MILL

[RIMSPOKE]

A GOOD DRO SETUP TAKES A MILL OR LATHE TO A WHOLE NEW LEVEL
SO AS GOOD AS THE PM-833T IS , IT's EVEN BETTER WITH DIDGITS .

I HAD ALREADY DONE A DRO INSTALL ON MY MAXIMAT SUPER 11 LATHE
WHERE THE MAKER MADE NO PROVISIONS FOR IT .

I LOVE TO USE DRAG CHAINS . THEY AREN'T EXPENSIVE AND THEY DO A FANTASTIC
JOB OF KEEPING THE CABLES ORGANIZED . BESIDE THEY LOOK COOL .

I ONLY HAVE THE X & Y SCALES SET UP SO FAR . THERE WILL BE A Z BUT THE SCALE
THAT WAS INCLUDED IN THE KIT IS TOO LONG FOR A NEAT INSTALLATION .
THE 833 HAS A ONE SHOT LUBER THAT IS IN THE WAY .

AS WITH THE MAXIMAT , I AM MAKING MOST OF MY OWN BRACKETRY .
THE MILL IS BEING USED TO MAKE IT's OWN PARTS .

 

[DrAsus]

Nice Install!! Very clean!

DrAsus

Sent from my XT1575 using Tapatalk

 

[RIMSPOKE]

Nice Install!! Very clean!

I AM FAR FROM DONE , I STILL NEED TO FIT THE COVERS
AND GET THE Z AXIS OPERATIONAL .

IT WILL HAVE ANOTHER DRAG CHAIN ON THE COLUMN .
IT WILL BE ON THE OTHER SIDE JUST ABOVE THE OILER .

I WAS THINKING ABOUT RUNNING THE POWER CABLE FOR
THE MOTOR ALONGSIDE THE READER CABLE BUT I AM WONDERING
IF ELECTROMAGNETIC INTERFERENCE WILL CAUSE PROBLEMS

 

[mksj]

I WAS THINKING ABOUT RUNNING THE POWER CABLE FOR THE MOTOR ALONGSIDE THE READER CABLE BUT I AM WONDERING IF ELECTROMAGNETIC INTERFERENCE WILL CAUSE PROBLEMS

Most likely not an issue if for a few feet if you are not using a VFD driven motor. Nice install. One thing to consider, when I had my bench top the Z axis DRO was on the spindle (battery operated type). Although I did have a variable speed powered Z axis head, I rarely used it for power boring or frequent Z axis height changes. Without the head locked down you would get a small angular nod to the head and the gibbs got worn down asymmetrically, especially if you are using it frequently for Z axis movement. Having a pump oiler will help. You could put the ES-12B Z axis scale on the column, and put a simple battery operated DRO scale on the spindle.

 

[RIMSPOKE]

HERE ARE SOME PICTURES WITH THE COVERS ON .

THE SCALES WERE INDICATED IN BEFORE IT WAS PUT TOGETHER .

 

[qualitymachinetools]

Was that you I was talking to last week about the Z Scale and we were disconnected? Also, there is a bracket in the tool box to extend that Z Axis way cover and you'll get another few inches of travel out of the Z Axis if you need it.

 

[qualitymachinetools]

The way cover will look like that when its done, thats how you get the full travel out of the head

 

[RIMSPOKE]

YES MATT , THAT WAS ME .

I HAVE INSTALLED THE Z COVER EXTENDER , THANKS FOR LETTING ME KNOW ABOUT THAT .
IT DOES EXTEND THE WORKING HEIGHT SIGNIFICANTLY .

IT DOES NOT SOLVE THE PROBLEM WHERE THE BASE FOR THE 500mm SCALE PROVIDED WITH
THE MACHINE IS PHYSICALLY TOO LONG FIT ON THE COLUMN .

THE BASE IS 27 INCHES LONG . ONE END WILL BE AGAINST THE OILER WHILE THE OTHER IS
STICKING UP HIGHER THAN THE MACHINE . THE COVER IS EVEN LONGER .
HERE IT IS RESTING ON THE OILER & STILL STICKING UP ABOVE THE COLUMN .

THE WAY I SEE IT , I HAVE TWO OPTIONS .

I CAN BUY A 450mm SCALE FOR ABOUT $150 . IT WILL FIT AND JUST MAKE THE 18" OF TRAVEL .
THEN TRY TO SELL THE 500mm SCALE TO RECOUP SOME OF THE COST .

THE CHEAPER SOLUTION WOULD BE TO MOUNT THE 500mm SCALE DIRECTLY TO THE MACHINE
WITHOUT THE BASE OR COVER . I CAN MAKE SOME LEVELING PADS FOR THE ENDS TO TRAM IT IN .

THE COVER ISN'T AS CRITICAL ON A SCALE MOUNTED ABOVE WHERE THE CHIPS ARE MADE .
THE OPENING WITH THE SEALS WOULD BE FACING AWAY FROM THE ACTION . SHOULD BE OK .

 

[RIMSPOKE]

I DECIDED TO GO WITH "PLAN B" ON THE Z .

I MOUNTED THE 500mm SCALE DIRECTLY TO THE MACHINE WITH SPACERS .
THE READHEAD IS TIED TO THE LIMIT SWITCH BY WAY OF A SHEET METAL BRACKET .

IT WORKS GREAT .
I HAVE 16.750" OF TRAVEL BETWEEN THE LIMITS AND THERE IS ROOM TO FILL THE OILER .

THIS WILL HAVE A DRAG CHAIN ON IT BEHIND THE SCALE .
I HAD TO ORDER A 10 x 30 ONE SO I CAN ROUTE THE POWER CABLE , LIMIT SWITCH LEAD
AND READ CABLES THROUGH IT .

THE ROUND ALUMINUM BOSS IS TO ENGAGE THE LIMIT SWITCH .

 

[RIMSPOKE]

I HAVE THE Z AXIS SET UP THE WAY I WANTED NOW .
THE HOLDUP WAS WAITING ON THE 10 X 30 DRAG CHAIN .

THE WIDER CHAIN ALLOWS ME TO ROUTE EVERYTHING FROM THE HEAD THROUGH THE CHAIN
AND HAVE NO DANGLING WIRES .

THE CABLE FOR THE Z READ HEAD , Z AXIS LIMIT SWITCH , POWER TO THE MOTOR
AND POWER FOR THE WORKLIGHT ARE ALL ROUTED THROUGH THE MOVING CHAIN .

I HAVE 16.75" OF Z TRAVEL ON THIS MACHINE AND HERE IT IS SHOWN AT BOTH EXTREMES .