Cnc Conversion Kit for G0704 Milling Machine from www.conversionkit.com
On this website you will find all information and instructions on how to convert your G0704 Drill/mill to Cnc Milling Machine. These kits will allow you to use your machine as a Cnc machine as well as a manual machine. The option you have because one of machine side will be with the hand wheels The picture above shows how the machine looks after the change of drill/mill to cnc milling machine .
This kit is designed to have NEMA 34 on the Z axis, and 2 x NEMA 23 on Y & X axis.
But we also have sets:
1 ) Z axis nema 34 and X,Y nema 23.
2) Each axis Nema 34.
3 ) Kit dose not require drilling on the base and Z axis Column but we do not have a option on the Y axis to move the axis with the hand wheel.
Our other websites can help you build cnc driver and cnc router please click on the link below.
Step 1 ) You need to completely dismantle your machine but remember to do this very carefully, a lot of people make a mistake when dismantling the mill head from the column , The head is twisted with 5 screws, 4 are under the head right next to the spindle, the last bolt is on the side of the head Below are the high lighted screws which need to be unscrewed.
Step 2 ) after completing the first step we have to Drill holes in the base, take the caliper and set it at the front base of the machine check the distance from the left corner to the middle of the base hole. Please check the picture and be sure you have the caliper on the same side of the base as we show.
Step 2 picture 1 (front of the base)
if you are sure you have set the caliper properly and exactly from the corner to the middle of the hole, now we can go to the back side of the base and mark the position for the new hole.
step 2 picture 2 ( back side of the base)
step 3 picture 3 (set caliper from the bottom of the base to the middle of the hole)
Now we have to setup the caliper from the bottom to the middle of the base hole. After you find the distance lock your caliper to that distance.
now you have to go to the back of the base and make a point where we have to drill the hole.
Now we take the Square Angle Ruler, since our first point was on top of the base (see picture 2,step 2 and photo above) we must make a point exactly where the ruler shows.
Now you know where your new hole will need to be drilled. The best way to drill the hole is by using different sized drill bits starting from small and then ending with 1 inch drill bit
Drilling hole on the G0704 column
Now you go to the Z axis column on the column hole can be 7/8” or 1
We have hole in our base and column. The next step is to add the Y axis Ball screw, you have to place the ball screw in to the base hole at 70 degrees then you hold the nut in your hand and twist the screw until you see its possible to put the other end of the ball screw in the other base hole.
IMPORTANT NOTE !
(DO NOT REMOVE THE BALL SCREW NUT FROM THE SCREW. IF YOU DO THIS THE BALLS WILL FALL OUT AND YOU WILL HAVE TO BUY A NEW BALL SCREW !)
Step 3) Saddle Room for ball screw nut Clarence . Each Chinese ball screw 16 mm pitch 5, requires space in the saddle because of this you need to cut the room in the saddle.
As you see on the picture below the ball screw flange nut is grinding, because of the X axis table. If we dont grind the nut flange we will have problems sliding in the X axis table.
On the second picture you have the Y axis ball screw and nut housing.
Ball screw inside the saddle.
Now you can add the X axis table.
This video is done by the kit owner, He also shows what to change on the drill/mill G0704 to have a CNC milling machine.
G0704 Cnc Conversion kit that set is for nema 34
If you need each axis with Nema 34 this kit is for you one stepper motor of the back of the Z axis column.
Kit number 2 that kit have stepper motor on the front of the machine n need drilling in the column.