FleetFarmer
Plastic
- Joined
- Apr 8, 2021
Hey guys...
I work in a job shop that normally programs using Mastercam, so when we had to help out our sister production shop run a bunch cast iron parts I just used the GCODE program that they used, but the program they gave me was way too slow for me so I changed a couple of the feeds and speeds to decrease the part time. Bear in mind I know very little about GCODE, but I know enough to change basics like tool number, speeds and feeds.
The part is a 5 pound weight that gets used in exercise machines. I bored soft jaws so that I clamp on an ID flange so the face of the part is facing the chuck. I only turn the OD and the ID. I use a MSDNN 16-4D Neutral tool for the OD with an SNMG120408-RK MC5015 insert. I use the neutral tool because the tool has to turn the OD then create a radius on both sides of the part. I use a 1.5 boring bar with a CNMG 432 insert for the ID. I run a Haas SL 30 Lathe.
When I try to increase the SFM( to what I think it should be), then the machine gives me a "tool overload alarm" always on the 1st pass. I assume if I wanted to decrease the part time that I should be running this at a much higher SFM. So would it make sense to add another roughing pass on the OD to decrease the depth of cut and then run at a higher SFM? Or would that actually take longer? The ID portion of the program is fine and I don't think I need to alter that at all.
The part starts at about 8.3"(OD) and 1.7"(ID). It needs to finish at 8" OD and 1.9" ID. Could you guys help me add another roughing pass for the OD? Or would that take longer than what I am running now...
Here is the program.
%
O0505
G98 G18
G20
G50 S2000
M31
G53 G0 X0.
(Profile1)
T1212
G99
M22
G97 S425 M3
G54
M8
G0 X9.1 Z0.2594
G0 Z0.2625
X8.14
G1 Z0.0625 F0.014
Z-0.705
X8.3
X8.46
G0 Z0.2625
X8.0167
G1 Z0.0625 F0.014
Z-0.705
X8.14
X8.2531 Z-0.6484
G0 Z0.2625
X7.8934
G1 Z0.0625 F0.01
Z0.0442
X7.9634 Z0.0092
G18 G3 X8. Z-0.035 I-0.0442 K-0.0442
G1 Z-0.61
G3 X7.9634 Z-0.6542 I-0.0625 K0.
G1 X7.8618 Z-0.705
X8.0167
X8.1298 Z-0.6484
X8.1494
G0 X9.1
Z0.2594
M9
G53 X0. Z-15.0
(ID ruff)
M1
T202
G99
M22
G97 S425 M3
G54
M8
G0 X1.57 Z0.1969
G50 S400
G96 S250 M3
G0 Z0.1685
X1.72
G1 Z-0.0315 F0.017
Z-0.7
X1.7059 Z-0.69
G0 Z0.1685
X1.85
G1 Z-0.0315 F0.013
Z-0.7
X1.8359 Z-0.69
G0 Z0.1685
X1.98
G1 Z-0.0315 F0.013
Z-0.7
X1.9659 Z-0.69
X1.92
G0 X1.7
Z0.1969
G97 S400 M3
(ID fin)
G99
M22
G97 S500 M3
G0 X1.85 Z0.1969
G50 S500
G96 S300 M3
G0 Z0.1685
X1.99
G1 Z-0.0315 F0.01
Z-0.7
X1.9617 Z-0.69
X1.93
G0 X1.85
Z0.1969
G97 S150 M3
M9
G53 X0. Z0.0
M30
%
But please I would love to hear what you guys think, I have almost 1500 of these to do and would love to save as much time as possible.
I work in a job shop that normally programs using Mastercam, so when we had to help out our sister production shop run a bunch cast iron parts I just used the GCODE program that they used, but the program they gave me was way too slow for me so I changed a couple of the feeds and speeds to decrease the part time. Bear in mind I know very little about GCODE, but I know enough to change basics like tool number, speeds and feeds.
The part is a 5 pound weight that gets used in exercise machines. I bored soft jaws so that I clamp on an ID flange so the face of the part is facing the chuck. I only turn the OD and the ID. I use a MSDNN 16-4D Neutral tool for the OD with an SNMG120408-RK MC5015 insert. I use the neutral tool because the tool has to turn the OD then create a radius on both sides of the part. I use a 1.5 boring bar with a CNMG 432 insert for the ID. I run a Haas SL 30 Lathe.
When I try to increase the SFM( to what I think it should be), then the machine gives me a "tool overload alarm" always on the 1st pass. I assume if I wanted to decrease the part time that I should be running this at a much higher SFM. So would it make sense to add another roughing pass on the OD to decrease the depth of cut and then run at a higher SFM? Or would that actually take longer? The ID portion of the program is fine and I don't think I need to alter that at all.
The part starts at about 8.3"(OD) and 1.7"(ID). It needs to finish at 8" OD and 1.9" ID. Could you guys help me add another roughing pass for the OD? Or would that take longer than what I am running now...
Here is the program.
%
O0505
G98 G18
G20
G50 S2000
M31
G53 G0 X0.
(Profile1)
T1212
G99
M22
G97 S425 M3
G54
M8
G0 X9.1 Z0.2594
G0 Z0.2625
X8.14
G1 Z0.0625 F0.014
Z-0.705
X8.3
X8.46
G0 Z0.2625
X8.0167
G1 Z0.0625 F0.014
Z-0.705
X8.14
X8.2531 Z-0.6484
G0 Z0.2625
X7.8934
G1 Z0.0625 F0.01
Z0.0442
X7.9634 Z0.0092
G18 G3 X8. Z-0.035 I-0.0442 K-0.0442
G1 Z-0.61
G3 X7.9634 Z-0.6542 I-0.0625 K0.
G1 X7.8618 Z-0.705
X8.0167
X8.1298 Z-0.6484
X8.1494
G0 X9.1
Z0.2594
M9
G53 X0. Z-15.0
(ID ruff)
M1
T202
G99
M22
G97 S425 M3
G54
M8
G0 X1.57 Z0.1969
G50 S400
G96 S250 M3
G0 Z0.1685
X1.72
G1 Z-0.0315 F0.017
Z-0.7
X1.7059 Z-0.69
G0 Z0.1685
X1.85
G1 Z-0.0315 F0.013
Z-0.7
X1.8359 Z-0.69
G0 Z0.1685
X1.98
G1 Z-0.0315 F0.013
Z-0.7
X1.9659 Z-0.69
X1.92
G0 X1.7
Z0.1969
G97 S400 M3
(ID fin)
G99
M22
G97 S500 M3
G0 X1.85 Z0.1969
G50 S500
G96 S300 M3
G0 Z0.1685
X1.99
G1 Z-0.0315 F0.01
Z-0.7
X1.9617 Z-0.69
X1.93
G0 X1.85
Z0.1969
G97 S150 M3
M9
G53 X0. Z0.0
M30
%
But please I would love to hear what you guys think, I have almost 1500 of these to do and would love to save as much time as possible.