Messages

4051

General Mach Discussion / Re: Limits Activate when Spindle is Running ,, EMF ?

« on: April 21, 2013, 05:22:20 AM »

Excellent work Phill, you certainly deserve to be smiling. 

Tweakie.

4052

General Mach Discussion / Re: Newbie Questions

« on: April 21, 2013, 04:56:35 AM »

Hi Scgrove,

Welcome to the forum.

I don’t use Sheetcam (probably the best choice of software for you to use) but I do use Vectric.
I think you need to check your .dxf files for duplicate lines etc. and edit as necessary to get the drawing as you want it to be (origin etc.) then make sure the vectors are correctly joined before generating the GCode (the procedures are all detailed in the Vectric tutorials).

Hope this helps.

Tweakie.

4053

General Mach Discussion / Re: Limits Activate when Spindle is Running ,, EMF ?

« on: April 21, 2013, 04:18:27 AM »

Hi PhillM,

Welcome to the forum.

The electrical noise produced by VFD’s can sometimes be difficult to control but here are a few suggestions…

All limit switch (and e-stop) wiring should be made with shielded cable and the shield only connected to GND at the controller end.
The cable connecting the VFD to the spindle should also be shielded.
It is good practice to have an EMI filter in line with the mains input to the VFD.
Try to keep the limit switch wiring distant from all the VFD wiring.
Treat GND and EARTH as being two separate circuits.
Check for and eliminate GND loops – It is best to have a star connection at the controller and take all GND connections to this one point only.
Check for and if possible eliminate EARTH loops.

There are many more potential noise elimination steps to follow but these are my initial thoughts.

Tweakie. 

4054

General Mach Discussion / Re: Has anyone istalled a zero plate on a k2 3925

« on: April 21, 2013, 03:56:58 AM »

Hi Fleck,

I don't have a K2 but if it's any help this is the system I use http://www.cooperman.talktalk.net/files/17.htm

Tweakie.

4055

General Mach Discussion / Re: coma to apostrophe

« on: April 19, 2013, 04:52:27 AM »

Hi Jim,

This question has come up before and here is a possible solution;  http://www.machsupport.com/forum/index.php/topic,6027.msg39962.html#msg39962

Tweakie.

4056

General Mach Discussion / Re: Hall of shame

« on: April 19, 2013, 04:41:32 AM »

Brett you may want to list all the known PIRATE license.

Hi Terry,

Perhaps that would not be a practical proposition as there are a couple (to my knowledge) pirate license generators floating about which will allow any chosen name to be used for the license creation. 

Tweakie.

4057

G-Code, CAD, and CAM discussions / Re: witch line is the software during the runing?

« on: April 18, 2013, 05:49:42 AM »

Hi  Bornaabzar,

You are perhaps trying to use Mach3 in a way for which it has not been designed.

Thinking about the M03 / M05 commands in your GCode - if they were to work, as is, during reverse run it would not be logical.

For example…

(Turn ON – Cut – Turn OFF) when in reverse run would be (Turn OFF – Cut – Turn ON).

I think this has been discussed before, in another thread, but if it was possible to reverse the active state of the spindle Output# pin only during a reverse run and also allow the M03 / M05 commands to execute during the reverse run then it could work logically correct.

Perhaps others will know if this is possible to achieve.

Tweakie.

4058

General Mach Discussion / Re: Stuttering problem with line segments

« on: April 17, 2013, 11:40:20 AM »

Derek,

I must admit that this is something I have not seen happen but I would suspect it’s a vibration being set up in your cutting bit.

Are you using a single flute cutter ?

Have you tried different RPM or a shorter length cutter ?

Is the front bearing on your spindle OK ?

The problem you are having with the SS and arcs really needs to be resolved as a matter or urgency though.

Tweakie.

btw. That's a man size shot glass  

4059

General Mach Discussion / Re: New computer No movement

« on: April 17, 2013, 05:20:28 AM »

Matt,

What CNC controller are you using and do you know the correct step and direction pin allocations for the controller ?

Tweakie.

4060

Video P*r*o*b*i*n*g / Re: ı add button puggin video but dont dont dont work pls help ???

« on: April 16, 2013, 08:11:54 AM »

Do you have windows 7 using the SendKeys command?

No - I use WinXP.

Tweakie.