Messages

2251

General Mach Discussion / Re: Help with noise problem

« on: February 14, 2017, 08:35:45 AM »

Hi Jordi,

Sorry, but without looking in detail at you installation I can only guess but here are some points to consider...

Earth and GND should be treated as entirely different circuits.
All metal parts, that can be touched (of a machine which is connected to mains electricity) must be properly connected to protective Earth.
VFD driven spindle motor cable should be shielded.
All inputs (limit / home switches, EStop, probe, etc.) cable should be shielded.
All cable shields should be connected to one star Earth point at the controller end only.
If you are connecting the same thing to Earth in two different places then that is an Earth loop and should be avoided.

Tweakie.

2252

General Mach Discussion / Re: Help with noise problem

« on: February 14, 2017, 07:31:22 AM »

As soon as the XLR connector (with the sield connected to it) is in contact with the metal case and therefore with the star ground, the Y axis gains steps.

From what you have described it sounds like you have created an earth loop.
All shields should be connected to the Star Earth at the controller end only.

Tweakie.

2253

General Mach Discussion / Re: Recommendations on BEST Breakout Board by General Mach3 Users !

« on: February 14, 2017, 01:33:02 AM »

Hi George,

The CM106 has connections for Pul+, Dir+, Pul-, Dir- and that’s where they should be connected.

Tweakie.

2254

General Mach Discussion / Re: motors tuning

« on: February 13, 2017, 03:19:38 AM »

Steps per unit will depend on both the pitch of your ballscrew and the microstepping selected by your motor driver.

There is a calculator here : http://www.machsupport.com/forum/index.php/topic,16315.0.html
And an example here : http://www.machsupport.com/forum/index.php/topic,12512.0.html

Please also refer to your other posting : http://www.machsupport.com/forum/index.php/topic,34160.0.html

Tweakie.

2255

General Mach Discussion / Re: Hall of shame

« on: February 12, 2017, 04:44:22 AM »

I mentioned FASTERCNC.CO.LTD in an earlier post as a peddler of a Mach3 pirate license.
Now it appears that they are also using the name DDREAMCNC.CO.LTD to peddle the same Mach3 fake license.

Tweakie.

2256

General Mach Discussion / Re: Mach3 PWM Settings

« on: February 12, 2017, 01:53:07 AM »

I didn’t know that I have to switch the PWM controller on/off and I can’t locate where this setting is.

Section 5.5.5.2 of the Mach3 manual details the procedure.  http://www.machsupport.com/help-learning/product-manuals/

Tweakie.

2257

Mach4 General Discussion / Re: Post Processor

« on: February 11, 2017, 03:05:20 AM »

What post processor do I pick when using VCarve pro 8.

firechief

Mach2/3 Arcs .... or  Mach2/3 ATC Arcs .... work just fine.

Tweakie.

2258

General Mach Discussion / Re: Anyone heard from Hood lately?

« on: February 10, 2017, 06:03:37 AM »

I just thinking the same thing, hope he is OK and not snowed-in up there.

Tweakie.

2259

General Mach Discussion / Re: Position Loss Issue

« on: February 10, 2017, 05:23:11 AM »

Try reducing your Velocity and Acceleration in Motor Tuning by 50 % for your X and Y axes (saving the changes for each axis).

Does your machine still loose position ?

Tweakie.

2260

General Mach Discussion / Re: Mach3 DriverTest Blue Screen of Death

« on: February 10, 2017, 04:21:45 AM »

From my experience Mach3 seems to work best with WinXP.

Assuming you are going to use the parallel port for communication then any OS you choose to use must be 32 bit.

Tweakie.