Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: pohare1 on March 09, 2016, 08:11:56 AM
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Hi all
I am using Lazyturn for my SEIG C6 CNC lathe
Everything is working fine, and i can get the machine to run accurately, however when the machine goes to run the finishing path is cuts to far into the profile.
It is as if it is getting Radius and Diameter mode mixed. I have tried different combinations of radius and diameter mode but the same problem exist
also when I run in Radius mode, the rough and fine paths match up but the first pass takes a huge chuck out of the material. ( at the minute im using dowel to test, if id run metal it would have been a disaster )
Any help would be greatly appreciated, as im fresh out of ideas.
PS
In the machine control software G8 and G7 are not supported commands
HELP!!!!!!
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Post the DXF and Gcode file and I will have a look.
NOTE: Always be consistent in how the drawing, LT mode and Mach Lathe mode is done , never mix them.
You can test the tool location to the profile and also simulate the cutting for a pass. You would see if the tool is cutting to deep into the stock or gouging.
RICH
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Hi Rich
Many thanks, This should be a simple thing but it has my head in a spin ( excuse the pun !!! ) I made a slight error in my original posy it is a sieg kc6s lathe
Here is the GCODE from Lazyturn
( LazyTurn Alpha 1.1 )
(Thursday, March 10, 2016 )
none set
(--------------ToolPath 1 of 2 )
(---------------------------------------------)
(Change to Tool: UnNamed -R0.0100-IC6.0000 )
T0000
S3000 F500.00 M3
G0Z0.1100
G0X18.1700
G1 F1000.0000 X17.9500
X17.5500
F500.0000 Z-23.7466
G0 X17.7500
Z0.1100
G1 F1000.0000 X17.5500
X17.3500
F500.0000 Z-23.7466
G0 X17.5500
Z0.1100
G1 F1000.0000 X17.3500
X17.1500
F500.0000 Z-23.7466
G0 X17.3500
Z0.1100
G1 F1000.0000 X17.1500
X16.9500
F500.0000 Z-23.7466
G0 X17.1500
Z0.1100
G1 F1000.0000 X16.9500
X16.7500
F500.0000 Z-23.7466
G0 X16.9500
Z0.1100
G1 F1000.0000 X16.7500
X16.5500
F500.0000 Z-23.7466
G0 X16.7500
Z0.1100
G1 F1000.0000 X16.5500
X16.3500
F500.0000 Z-23.7466
G0 X16.5500
Z0.1100
G1 F1000.0000 X16.3500
X16.1500
F500.0000 Z-23.7466
G0 X16.3500
Z0.1100
G1 F1000.0000 X16.1500
X15.9500
F500.0000 Z-23.7466
G0 X16.1500
Z0.1100
G1 F1000.0000 X15.9500
X15.7500
F500.0000 Z-23.7466
G0 X15.9500
Z0.1100
G1 F1000.0000 X15.7500
X15.5500
F500.0000 Z-23.7466
G0 X15.7500
Z0.1100
G1 F1000.0000 X15.5500
X15.3500
F500.0000 Z-23.7466
G0 X15.5500
Z0.1100
G1 F1000.0000 X15.3500
X15.1500
F500.0000 Z-23.7466
G0 X15.3500
Z0.1100
G1 F1000.0000 X15.1500
X14.9500
F500.0000 Z-23.7466
G0 X15.1500
Z0.1100
G1 F1000.0000 X14.9500
X14.7500
F500.0000 Z-23.7466
G0 X14.9500
Z0.1100
G1 F1000.0000 X14.7500
X14.5500
F500.0000 Z-23.7466
G0 X14.7500
Z0.1100
G1 F1000.0000 X14.5500
X14.3500
F500.0000 Z-23.7466
G0 X14.5500
Z0.1100
G1 F1000.0000 X14.3500
X14.1500
F500.0000 Z-23.4626
G0 X14.3500
Z0.1100
G1 F1000.0000 X14.1500
X13.9500
F500.0000 Z-22.6711
G0 X14.1500
Z0.1100
G1 F1000.0000 X13.9500
X13.7500
F500.0000 Z-21.8795
G0 X13.9500
Z0.1100
G1 F1000.0000 X13.7500
X13.5500
F500.0000 Z-21.0880
G0 X13.7500
Z0.1100
G1 F1000.0000 X13.5500
X13.3500
F500.0000 Z-20.2964
G0 X13.5500
Z0.1100
G1 F1000.0000 X13.3500
X13.1500
F500.0000 Z-19.5049
G0 X13.3500
Z0.1100
G1 F1000.0000 X13.1500
X12.9500
F500.0000 Z-18.7133
G0 X13.1500
Z0.1100
G1 F1000.0000 X12.9500
X12.7500
F500.0000 Z-17.9218
G0 X12.9500
Z0.1100
G1 F1000.0000 X12.7500
X12.5500
F500.0000 Z-17.1302
G0 X12.7500
Z0.1100
G1 F1000.0000 X12.5500
X12.3500
F500.0000 Z-16.3387
G0 X12.5500
Z0.1100
G1 F1000.0000 X12.3500
X12.1500
F500.0000 Z-15.5471
G0 X12.3500
Z0.1100
G1 F1000.0000 X12.1500
X11.9500
F500.0000 Z-14.7555
G0 X12.1500
Z0.1100
G1 F1000.0000 X11.9500
X11.7500
F500.0000 Z-13.9640
G0 X11.9500
Z0.1100
G1 F1000.0000 X11.7500
X11.5500
F500.0000 Z-13.1724
G0 X11.7500
Z0.1100
G1 F1000.0000 X11.5500
X11.3500
F500.0000 Z-12.3809
G0 X11.5500
Z0.1100
G1 F1000.0000 X11.3500
X11.1500
F500.0000 Z-11.5893
G0 X11.3500
Z0.1100
G1 F1000.0000 X11.1500
X10.9500
F500.0000 Z-10.7978
G0 X11.1500
Z0.1100
G1 F1000.0000 X10.9500
X10.7500
F500.0000 Z-10.0062
G0 X10.9500
Z0.1100
G1 F1000.0000 X10.7500
X10.5500
F500.0000 Z-9.2147
G0 X10.7500
Z0.1100
G1 F1000.0000 X10.5500
X10.3500
F500.0000 Z-8.4231
G0 X10.5500
Z0.1100
G1 F1000.0000 X10.3500
X10.1500
F500.0000 Z-7.6316
G0 X10.3500
Z0.1100
G1 F1000.0000 X10.1500
X9.9500
F500.0000 Z-6.8400
G0 X10.1500
Z0.1100
G1 F1000.0000 X9.9500
X9.7500
F500.0000 Z-6.0485
G0 X9.9500
Z0.1100
G1 F1000.0000 X9.7500
X9.5500
F500.0000 Z-5.2569
G0 X9.7500
Z0.1100
G1 F1000.0000 X9.5500
X9.3500
F500.0000 Z-4.4654
G0 X9.5500
Z0.1100
G1 F1000.0000 X9.3500
X9.1500
F500.0000 Z-3.6738
G0 X9.3500
Z0.1100
G1 F1000.0000 X9.1500
X8.9500
F500.0000 Z-2.8822
G0 X9.1500
Z0.1100
G1 F1000.0000 X8.9500
X8.7500
F500.0000 Z-2.0907
G0 X8.9500
Z0.1100
G1 F1000.0000 X8.7500
X8.5500
F500.0000 Z-1.2991
G0 X8.7500
Z0.1100
G1 F1000.0000 X8.5500
X8.3500
F500.0000 Z-0.5076
G0 X8.5500
Z0.1100
G0X18.1700
G0Z0.1100
(--------------ToolPath 2 of 2 )
(---------------------------------------------)
(-------------- Fine Path -----------------)
(Change to Tool: UnNamed -R0.0100-IC6.0000 )
T0000
S3000 F500.00 M3
G0 X8.9750
G0 Z0.1100
G1 Z0.1100 X4.1066
Z-0.2660 X4.2453
Z-23.6357 X7.1977
Z-23.7466 X7.1035
G0 X7.2977
Z0.1100
G1 Z0.1100 X4.0000
Z-0.2898 X4.1475
Z-23.6045 X7.0929
Z-23.7466 X6.9723
Z-23.7466 X6.9723
G0 X8.9750
(--------------End of Finish path-----------)
M5M30
(------- End of File -------)
Sorry i cant seem to post the dxf. however it is a very simple taper. Tapering from 8 - 14 over 23.75 mm length
Many thanks for your help Rich , can you suggest another type of free program that would perform this operation ??
Cheers
Here is the dxf, drawn in Solidworks
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Ahhhh, free, simple lathe cam that works; the holy grail. I couldn't find one either.
If it's a simple taper, will the wizard that comes with Mach3 Turn work? I've used it and it works well.
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Attached is a version 12 DXF backplot of the code you posted.
- RED are the pullouts / rapids
- BLUE are the machining at feedrate
- MAGENTA is a 8x14 x 23.75 long taper starting at 0,0,0
Looks like the rough is in diameter and the finish is radius mode??
I really need a Version 12 DXF of YOUR drawing of the taper.
There should be no problem doing this in Lazyturn and you could always use one of the wizards as they also work.
Note that you should see the pathing in simulation and see that thepathing is not correct. There is a manual for LazyTurn.
RICH