Vmc Machine 5 Axis
Karmen Mcarthun
CNC (computer numerical control) machining is a process in manufacturing where programmed computer software directs the motions of plant machinery and tools. The application can be used to automate a range of manufacturing techniques such as milling, water jet cutting, and laser cutting materials. Instructions are fed into the CNC machine through a CAD file and transposed into a precise set of sequential instructions. The CNC machine uses these programmed commands to operate automatically without a physical operator. Manufacturers accrue several benefits through the application of CNC machining such as expense reduction, improved speed, better accuracy, and enhanced productivity levels.
The reference to axes is used to describe CNC machines which operate along multiple axis points. CNC machining is the process of removing material from a workpiece until the desired shape is configured. These machines have at least a 3 axes and operate along an XYZ plane: X axis (vertical), Y axis (horizontal), and a Z axis (depth). The 4th axis denotes the inclusion of an A axis (rotation around the X axis), and the 5th axis denotes the B axis (rotation around the Y axis).
The number of axes on a CNC machine determines the type of work it can do, the level of detail it can cut, and the workpiece locations it can manipulate. So what does this all mean? The following provides a better explanation of the differences between a 3 axis, 4 axis, and 5 axis CNC machines.
4 axis machining implies that a workpiece is processed in the same way it would be with a 3 axis machine, but has an additional rotary movement around the X axis, which is named the A axis. This rotation allows the workpiece to be cut around the B axis. This method is beneficial when holes or cuts need to be made on the sides of a workpiece. The addition of a fourth axis (A axis) allows a workpiece to be automatically flipped over, so the machine can remove material from both sides. 4 axis machining is multifunctional and can be used for:
5 Axis machining implies that a workpiece can be automatically manipulated from five sides at one time. In addition to automatic movements along the X, Y, and Z axes, 5 axis CNC machines can select two of the three rotational axes (A,B,C) to use. The A, B, and C axes perform a 180 rotation around the X, Y, and Z axes, correspondingly. This type of machining is used in the automobile, aerospace, and boating industries. Application is commonly favored for extremely complex components that are solid and would otherwise have to be cast. 5 axis machining requires greater CNC programming preparation time to accommodate complex rotatory movement, but allows one workpiece to be worked on all five sides during one operation. 5 axis machining is beneficial when components require a great deal of intricacy and quick precision. This includes:
CNC machining has proven to be operationally beneficial across manufacturing intensive industries. Some advantages include improving product quality control, standardization, and precision. The adoption of CNC machining leverages CAD technology to automate the cutting and shaping of components. The numbers of axes determine what type of movement a CNC machine can conduct.
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I am attempting to create a new machine with machine builder including model. In my model the X, Y and Z axis works correction with the linear direction and constraints. However when I go into machine builders preview machine movements the X and Y are fine but Z's direction appears to be reversed. I can't find any settings in machine builder to correct this. I also looked at my post ( which I modified to add simulation) but it seems to get any setting form the machine library.
I'm not sure how to share this and I've never done a screencast before not know what software is necessary. I am including a link to my shared model but not sure if the machine builder stuff will come across with it so I am attaching my machine and post.
The axis orentation is from the part attachment point (Head move up will be max and Head move down side will be min) so you have to change the max min the Z direction and i have noticed in your screen cast you are moving the joint in the machine builder this causes the Z axis will be repositioned and it will make that last place as the Z0 position.
I have attached a modified F3d file take a look into it
This works and correct my problem but it does seem inconsistent with the way joint limits work. You appeared to have removed my joint limits form the modified version you sent back. I left my in a it still works but again they work completely backwards which in my mind is inconsistent.
List item.80 w CO2 laser, Y axis will not move, finished last job and returned machine to homing position, machine crashed and made loud noise banging. shut down machine and tried to move Y axis on Ruida control, would not move.
tried moving X axiis on Ruida control and machine moves left to right. ok touched position sensor on x axis with screw driver and sensor lights up, touched position sensor on Y axis and sensor does not light up. Ordered and replaced sensor on Y axis and sensor lights up,
Tried to run machine Y axis still not moving up or down. Return home and machine moves to RH side and crashes once again, sensor light still working. can it be a loose connection somewhere, up until now machine was working ok. Help Needed
The sensor is an NPN Red sensor PL O5N, it lights up when touched with screw driver, gantry can be moved by Ruida controller left or right but not up or down. does this mean the controller for x Axis is or could be faulty
Next, put the cables back as they were. Then swap the cables from the drivers to the stepper motors at the drivers such that X driver is now driving Y motor and Y driver is now driving X motor. Run the same motion test. Does the problem stay on Y or does it move to X?
Yes I did change the wires for the sensors, amd test the sensors on the schematic by touching the sensor on Y and checking the diagnostic Y lights up on the machine and also on the diagnostic, X lights up on the machine but not on the Diagnostic screen can you send me a diagrahm Sam
In the diagram, swap 1A and 1B. This will redirect X motion to Y driver and Y motor and vice versa so be very cautious with this. Push ESC when the machine starts moving to abort homing or it will crash. Does pushing left and right on the panel cause up down motion? What about pushing up and down?
WIRE DEFAULT.MCAM-wmd is there but it doesn't load properly any longer and I get an error about there not being a Valid Axis Combination Defined and that it can not be used in the Toolpath window, etc.
I logged into my Mastercam account and went to their Download section but I could not find a copy of this file. I suppose I can go with a complete reinstall of Mastercam 2018 but that seems a bit harsh.
Re install of MC was the answer in both cases. I was lucky, I (or rather our IT whiz) did a straight forward uninstall then reinstall. When it first came up none of my original file paths to things like .config were working and I thought I would have to set the whole thing up again. But I did a computer restart and it picked up all my old settings and I was off to the races.
I have heard stories of people having more problems than this and having to go into the registry files and clear them of all the references to the version in question before they could get it to function properly again. Don't know if they had to "redo" their .config files etc....
Seems to me you should just be able to reload a new machine def though, no copy on file? I always make a copy of my machine and control defs before I link all the files for use.....nothing in the defaults you can use to make a new one?. Might be the quickest way.....
Ask your dealer for the machine install for 2018 and only install what you need. As reinstalling 2018 will not reload all the posts as 2018 only shipped with a bare minimumof machine defs compared to the past.
Thank you all for taking the time to reply. I will be trying to fix this again this coming week. Too much work these last two weeks to give me much time to try and get Mastercam up and running again. (fwiw I am using the original Fanuc FaptCut I software so I am not dead in the water).I w
I will post the results of my attempts. That you all for the suggestions. I have access to another PC that has it installed. It isn't a wire EDM but a Haas mill but I should be able to swipe a couple of control definition files from it I hope.
I didn't copy them all but the Control Definition File and the Machine Definition Files (I guess they are separate problems I was having) I had listed in my settings seemed ideal candidates. I copied over the 2 Wire Default files as well as the Generic Fanuc 4X Wire files. They were WMD as well as MCAM-CONTROL file types.
Also, just copying them over did not fix the problem completely. I also had to open the Machine Definition Manager. Go to the MACHINE tab in Mastercam 2018 and click on the Machine Definition button. That will bring up the manager. I had to choose the Post Processor again (I had a selection now for the Generic FANUC 4X Wire PST since I copied the above mentioned files over. I didn't before. I didn't think they were POST files exactly but what do I know. I assumed the machine definition files and the posts were seperate)
Regardless, to fix the Axis Combination error I had to drag over some of the components to the Machine Configuration file. If you clock on the Help ? in the Manager and click on the red Machine Configuration link you can see a description of what I did. I had 3 options listed under the Machine Base. Wire Table Group, Upper Wire Guide Group, and Lower Wire Guide Group. They did not have and child components listed under them though and that was the problem.
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