LinkBack URL
About LinkBacks
Which Mill do you have?
| | |
First of all let me say I’m not a machinist!!! I’m teaching myself cnc, machining, cam, mach3, electronics, ECT.
After the trials of making the electronics, interfacing, blowing up a mother board, setting pins, ports, motor tuning ECT. Now I am faced with machine alignment (mill). Not having a wealth of test gages here is a small program (I believe) to check mill head alignment with its table without a dial indicator. I used 2 pieces of 7/8” MDF one mounted on the table, the other one mounted on top of the first one. Using a .125 bit I ran the program below to the program stop. Them I removed the top piece of MDF, and then ran the program again. After the hole was drilled I installed 2- 1/8” pins in the holes in the piece mounted on the table. Then placing the top piece over the pins and ran the second program. At its end I removed the top piece and flipped it over and ran the second program over again.
Looking at the edge there were overlaps. My mill head is not in line. What do you all think?
N0 F20
N1 G0 X0,Y0,Z1
M3
N2 G0 X2
N3 G1 Z.7
N4 G1 Z1
N5 G0 X-2
N6 G1 Z.7
N7 G1 Z1
N8 M2
(SET Z0 TO TOP OF MATERIAL MOUNTED TO TABLE)
F20
N1 G0 X0,Y0,Z1
N2 M3
N3 G0 Y1
N4 G1 Z.5
N5 G1 X1
N6 G1 Y-1
N7 G1 X-1
N8 G1 Y1
N9 G1 X0
N10 G0 Z1
N11 M2
Which Mill do you have?
sherline
You should really invest in a dial test indicator or similar. Does a doctor need a stethoscope?
However a bent rod in the shape of a "Z" in the spindle and strips of paper as feeler gauges will also work.
Regards
Phil
Originally Posted by mike_lera
First of all let me say I’m not a machinist!!! I’m teaching myself cnc, machining, cam, mach3, electronics, ECT.
After the trials of making the electronics, interfacing, blowing up a mother board, setting pins, ports, motor tuning ECT. Now I am faced with machine alignment (mill). Not having a wealth of test gages here is a small program (I believe) to check mill head alignment with its table without a dial indicator. I used 2 pieces of 7/8” MDF one mounted on the table, the other one mounted on top of the first one. Using a .125 bit I ran the program below to the program stop. Them I removed the top piece of MDF, and then ran the program again. After the hole was drilled I installed 2- 1/8” pins in the holes in the piece mounted on the table. Then placing the top piece over the pins and ran the second program. At its end I removed the top piece and flipped it over and ran the second program over again.
Looking at the edge there were overlaps. My mill head is not in line. What do you all think?
N0 F20
N1 G0 X0,Y0,Z1
M3
N2 G0 X2
N3 G1 Z.7
N4 G1 Z1
N5 G0 X-2
N6 G1 Z.7
N7 G1 Z1
N8 M2
(SET Z0 TO TOP OF MATERIAL MOUNTED TO TABLE)
F20
N1 G0 X0,Y0,Z1
N2 M3
N3 G0 Y1
N4 G1 Z.5
N5 G1 X1
N6 G1 Y-1
N7 G1 X-1
N8 G1 Y1
N9 G1 X0
N10 G0 Z1
N11 M2
Posting Permissions
| | |
