Messages

5501

Video P*r*o*b*i*n*g / Re: moving axis with captured pictures or video

« on: October 29, 2009, 06:07:13 AM »

spunk,
CopyCat is a a program which will allow you to jog around and create gcode from the movements.
There is a manual in the Members Docs for it. The program is included with Mach3 installation and is one of the addons / plugins. To save the code you will need a license for MACH3 ADD-Ons.
It will not do what you are asking for.

The closest thing i can think of is what some of the video surveilence cameras do, in that the camera will follow movement. That may give you a clue on what is needed. For Mach to follow something you would need some kind of feedback info into the controller to put out pulses to the axis drives. Never saw anything posted in here.
BTW, i would assume that as accuracy becomes important so will the complexities of it all.

LOL on Zeroing In,
RICH

5502

Video P*r*o*b*i*n*g / Re: moving axis with captured pictures or video

« on: October 28, 2009, 06:39:48 PM »

SPUNK,
How about using CopyCat?
You are not capturing the picture but rather doing it in real time. The move to a point would be the gcode for the rapid or feedrate move done to a point. I am not sure exactly what your trying to do.
RICH

5503

General Mach Discussion / Re: Problems threading on the lathe

« on: October 28, 2009, 06:18:14 PM »

ART,
I just figured your having fun! Hope it's the culprit.
RICH

5504

General Mach Discussion / Re: Strange cutting.... Circles for line segments...

« on: October 27, 2009, 09:10:00 PM »

kthomson,

'Oddly, the crop circles aren't even the real glitch, I'm sure there is a mathematical reason that the program sees these line segments as circles.
'
......There are explainations in the ARC Motion tutorial that address this.


"The real glitch is the fact that they don't show up in the cut path, you only find them in the middle of a part when it destroys your work."

......Wise to always dry run.


RICH

5505

General Mach Discussion / Re: Axis Drive Design Helper Spreadsheet

« on: October 27, 2009, 12:17:41 PM »

Nice job Ray,
Should come in handy for a lot of users.
There are programs out there that go into great depth for evaluating a drive system.
But yours is additive to them since you get some basic values for intial motor tuning.
RICH 

5506

LazyCam (Beta) / Re: removing chains and entities

« on: October 27, 2009, 12:03:51 PM »

Hmmm...."properly" is maybe a bad word.
Any raster ( image file ) to  vector conversion ususaly gives a bunch of "stuff" that you have  to clean up
to suite yourself. What i was meaning by "proper" is that once you have what you want to machine , stop and think in terms of the "machining" that will be done to the piece before it is DXF'd.  But again, that's was my personal
preference on using LC, and still is, when i wrote the manual. You may want to add extra lines, clamps, an offset, or whatever and named appropriately to make using LC easy or not have to use some of the tools that are available in LC.
RICH
 

5507

General Mach Discussion / Re: Threading on the lathe causes problems

« on: October 27, 2009, 11:45:08 AM »

Everyday is a learning day. It never stops and when it does, well, it's cold 6' down!  
RICH

5508

General Mach Discussion / Re: Threading on the lathe causes problems

« on: October 27, 2009, 05:37:45 AM »

Phil,
The Chamfer at the end of the thread in G76 is specified with the "L" parameter and it is optional. So "L0" would mean no pull out and in the code below l45 would be 45 degree chamfer. The chamfer is specified in the wizard inputing a value for the chamfer. Note the Z differences in the second G32 line of  the code.
You can look at the script to see how that it is is done.

THIS IS G76 CODE WITH 45 DEGREE CHAMFER
---------------------------------------
G0 G40 G18 G80 G50 G90
G00 G53 X0 Z0
T202M6
G00  X1.1
G00 Z0.1
G00 X1
M03 S402
M08
G76 X0.9999 Z-1 Q0 P0.05 J0.0002 L45 H0.0001 I30 C0.1 B0.0002 T0                
M9
M5
M30

THIS IS G32 CODE - 45 DEGREE CHAMFER
----------------------------
(Taper = 0)
(Infeed Angle = 30)
(Total_Depth = 0.0001)
(StartZ = 0.1)
(EndZ = -1)
(Seq = 0 )
(Min_Decrement = 0.0002 )
(Dia Mode )
G0 X1.1 Z0.1
G0 X1
(Min decremant being used)
(Last Pass ID_OD = 1)
(Decrement = -0.0001 pass 1)
G01 Z0.1
G32 X1.0001 Z0.1 F0.05
G32 X1.0001 Z-0.9938 F0.05
G01 X1.1 Z-1 F0.05
G00 X1.1 Z0.1
G00 X1
( Last pass at depth of 0.0002)
G01 Z0.1
G32 X0.9999 Z0.1 F0.05
G32 X0.9999 Z-0.9938 F0.05
G01 X1.1 Z-1 F0.05
G00 X1.1 Z0.1
G00 X1
G00 X1.1 Z0.1

THIS IS G32 CODE WITH 0 DEGREE CHAMFER
--------------------------------------
(Taper = 0)
(Infeed Angle = 30)
(Total_Depth = 0.0001)
(StartZ = 0.1)
(EndZ = -1)
(Seq = 0 )
(Min_Decrement = 0.0002 )
(Dia Mode )
G0 X1.1 Z0.1
G0 X1
(Min decremant being used)
(Last Pass ID_OD = 1)
(Decrement = -0.0001 pass 1)
G01 Z0.1
G32 X1.0001 Z0.1 F0.05
G32 X1.0001 Z-1 F0.05
G01 X1.1 Z-1 F0.05
G00 X1.1 Z0.1
G00 X1
( Last pass at depth of 0.0002)
G01 Z0.1
G32 X0.9999 Z0.1 F0.05
G32 X0.9999 Z-1 F0.05
G01 X1.1 Z-1 F0.05
G00 X1.1 Z0.1
G00 X1
G00 X1.1 Z0.1

RICH

5509

General Mach Discussion / Re: Threading on the lathe causes problems

« on: October 26, 2009, 07:30:23 PM »

I don't even have limit switches installed on the lathe yet, and, don't use homing without switches.
SO can't try or help on that matter.
I have run the lathe at many different velocities  and the G0 moves all seemed apropriate after  each thread cycle.
Haven't even tried ver 029.
RICH

BTW: I don't use the G76 as i like to know what pass screwed something up in the thread testing.

5510

General Mach Discussion / Re: Problems threading on the lathe

« on: October 26, 2009, 03:37:08 PM »

Thanks ART,
Look forward to the update.  Besides, winter is coming and Ruff Van Winkle "LazyTurn" will be waking up.
RICH