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Messages - Herri

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11
G-Code, CAD, and CAM discussions / Re: Problem with my X & Y
« on: October 13, 2015, 07:15:03 AM »
Part 1
I changed everything as you suggested and the directions were all as per diagram.
The homing was also correct.
When I came to cut, the Z-axis went the wrong way.
In the tool path window the arrow went down when it should go up.
The only way I could find to correct it, was to reverse the Z back to how it was (down is now minus)
It still homes correctly and my initial problem of things being turned is now past.

What does not seem to work anymore is the Soft Limit button, which no longer reacts to pressing.

Part2
I changed the steps to 400. It went very fast, compared to previously. I cannot find the Stepping Mode or Distance/Rotation etc. I have looked in the Mach3 file but cannot find any reference.
I have now changed it back to 200 until I know what I am doing.

Your last comment about referencing the Y axis has confused me. Where do I do this. Is this the Soft Limits on the homing page? I have these set to 422 X and 598 Y.

As you may have noticed I am a complete novice. I would love to buy “CNC/Mach3 for dummies” but Amazon do not stock it.
Thanks again.

12
G-Code, CAD, and CAM discussions / Re: Problem with my X & Y
« on: October 12, 2015, 03:54:43 PM »
Much appreciated Rob. I wish I had seen that file earlier. I got my original XML from Stoney (after having to beg for it)
I assumed all would be well.
I shall take your and BR549's advice and do one thing at a time.
I'll let you know how I get on.

13
G-Code, CAD, and CAM discussions / Re: Problem with my X & Y
« on: October 12, 2015, 01:41:46 PM »
Afraid not. It still tries to home at the top (no switch)

14
G-Code, CAD, and CAM discussions / Re: Problem with my X & Y
« on: October 12, 2015, 12:53:18 PM »
If I do that, the X homes to the other side, where there is no switch.

15
G-Code, CAD, and CAM discussions / Re: Problem with my X & Y
« on: October 12, 2015, 11:19:35 AM »
Thanks for the replies. Maybe I just see it wrong. I have spent all day today playing with the settings as suggested.
I do understand it all better but not altogether. If you look at my first image. My table is at its home position. The machine coordinates read zero. X increases as it moves away and Y increases as it moves right.
If I reverse the X axis, the mechanical stop is at the wrong end. That is the way the machine should be built according to the instructions.
Look at the two other images. When I convert a CAD file to CAM, the item looks the same (left-right etc) When I open the file in Mach3 and look at the tool path window, its still the same.
I move the cutter to the wood, then zero the 3 axis. I then recalulate the tool path.
When I start cutting, the cutter moves off in the opposite direction as in the window. The zero corner is bottom left in the window but bottom right on the machine in relation to the work piece. This means the piece is cut from the back and needs turning over when cut.
Maybe this is how it is with everyone, as I suppose its not a problem to turn the wood (in my case) over.

16
General Mach Discussion / Re: Changing Axis Orientation
« on: October 11, 2015, 01:29:58 PM »

Hi Rusty,
i probably have the same problem.
Have a look:

http://www.machsupport.com/forum/index.php/topic,31020.msg215127.html#msg215127

Did you find out what was wrong??

Herri

17
G-Code, CAD, and CAM discussions / Re: Problem with my X & Y
« on: October 11, 2015, 10:41:08 AM »
Here are the images

18
G-Code, CAD, and CAM discussions / Re: Problem with my X & Y
« on: October 11, 2015, 09:42:41 AM »
I can't seem to attach anymore images
I get the message :image already in use'
What I am doing wrong? ???

19
G-Code, CAD, and CAM discussions / Problem with my X & Y
« on: October 11, 2015, 09:39:35 AM »
I seem to have a problem with my X & Y axis. Although I have been cutting small pieces of ply I didn’t notice a problem until recently.

It seems as if my X & Y are the wrong way round.
The home position is shown in the attachment
The Y is the longest part of my table and the X is the shortest ie width.

When I press the UP arrow the Y axis moves along the longest part of the table and the SIDE arrows, the X axis; width of the table.

When I look at the window in Mach3 and press Start, the cutter moves to the right in the window but to the left on the table.
The height is the width and vica versa.
Its as if my table is turned by 90 degrees.

The attachments show this:
In CAD the drawing is correct. When I come to cut, left is now right. I can of course turn the piece over when it is finished but there must be another way.

If I change the pins in the Motor Output settings, I reverse the X & Y but then the mechanical stops are at the wrong sides.

I am totally confused – anybody know what I am doing wrong
Thanks
David

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