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Messages - Graham Waterworth

1071
MACH TOOL BOX / Re: SubRoutine : Engraving Leters
« on: May 07, 2011, 03:33:39 PM »
The space file (^.txt) looks to be missing from the ZIP

Graham

1072
Works in progress / Re: THE LATHE PROJECT-2011 - WIZARDS SCREENS ONLY
« on: April 29, 2011, 05:24:54 AM »
Better still write the code

%
G21 G40 G00 G90 G43
T0101
G97 S1000 M3
G00 Z1.
X20.
G01 Z0 F.25
X21. Z-322. F.1
G00 X25.
Z1.
M30
%

You can change the X figures to match your job.

Graham

1073
Why not mount the part on a mandrel in the mill spindle and mount a tool in the vice and use the mill like a lathe.

Graham

1074
Very nice indeed, its a shame you have to use it and get it dirty  >:D

Graham

1075
G-Code, CAD, and CAM discussions / Re: Need some g-code critique
« on: April 01, 2011, 09:31:04 AM »
At the end of the program add this bit of code

G54 G00 G90 Z1.
X0 Y0
M30

This will move the machine back to your original zero point.

Make sure the Z axis is clear of the work first

If the cutter is not back at the start point then you may be loosing position during the cutting.

Graham

1076
Distance mode in Mach3 should be set to absolute and ij mode set to inc.

Graham

1077
It looks fine to me as it is set in your pictures.

Graham

1078
If somebody wants a real challenge then one of these engines in miniature would be the one  >:D

http://www.royalscotsgrey.com/deltics.htm

Graham
 

1079
Works in progress / Re: THE LATHE PROJECT - 2011
« on: March 19, 2011, 11:15:47 AM »
Scott,

do not change it based on what I say, I for one will never use it as I have my own screen sets, design it for what the masses want, I was only pointing out that a screen can not be all things to all users.

Graham

1080
Works in progress / Re: THE LATHE PROJECT - 2011
« on: March 19, 2011, 07:28:36 AM »
As a full time industrial user of mills lathes and mill turns the idea of using a screen like this is ridiculous, it's over complicated and cluttered. That makes it dangerous, a run screen should be just the buttons you need to run the program, setting up should be done on a second screen.

All I would want on a run screen is a g-code listing, cycle start, cycle stop, single block, optional stop, feed override, speed override, a button to offsets page and E-stop that's it, clean clear and simple anything else can be on a set up screen.

A CNC machine can be operated in one of two modes, set up mode and production mode, in set up mode you can have all the buttons and flashing lights you want as a trained setter is in the process of setting the job up for production.  In production mode an operator is using the machine and all he/she needs to know is how to start the process and how to stop it if something goes wrong or needs changing. The setting side of the machine and control is locked away from the operator.

Now, in the hobby market there are no rules because the CNC machine is probably never going to go in to production mode and the operator is the setter, in most cases the machine is used rarely and the user has had no formal training so every time the machine is used it's a learning experience and that is why they feel that every DRO, button and LED should be on one screen that way they don't have to look for them.

That is how I see things, I am sure you all have your own way of working and I am not saying who is right or wrong just don't try to mix hobby and professional systems as they require totally different screen layouts.

Graham