Messages

1451

General Mach Discussion / Re: Laser control on and off using Z

« on: March 01, 2017, 02:28:30 AM »

Hi Boxin,

Measure (monitor) the direction signal TTL voltage from your BoB - it could be that it does not have persistent TTL levels for the direction signal output.

Tweakie.

1452

General Mach Discussion / Re: Laser control on and off using Z

« on: March 01, 2017, 02:15:54 AM »

Hi Boxin,

Firstly, connect a multimeter to the 5 Volt supply from your ATX and confirm that the voltage remains constant

If that is OK then measure the direction signal TTL voltage from your BoB - it could be that it does not have persistent TTL levels for the direction signal output (as you suspect).

Tweakie.

1453

General Mach Discussion / Re: Can this computer run mach3

« on: March 01, 2017, 01:59:41 AM »

Hi Malcolm,

That .xml does have ports and pins configured, however, as mentioned in my earlier post (#24) You can't use Port1 Pins 2, 4, 6 for Output Signals when they are already being used for Motor Outputs.
If you disable Output#1, Output#2, Output#3 then your axes will most likely drive in either direction.

Tweakie.

1454

General Mach Discussion / Re: How do i setup Mach3 to control a laser with TTL input?

« on: March 01, 2017, 01:44:46 AM »

Hi Boxin,

I have replied in the other thread https://www.machsupport.com/forum/index.php/topic,33309.msg237520.html#msg237520

Tweakie.

1455

General Mach Discussion / Re: Laser control on and off using Z

« on: March 01, 2017, 01:40:54 AM »

Could you tell me why when I use this method, the laser stays on only a flash? The laser does not stay on for the entire path, only turns on for an instant.

Hi Boxin,

I can't explain that. The Direction signals are persistent (they will remain at the set TTL level until changed). I have never used a relay because of the switching delay introduced but I have never had any trouble switching my laser on / off just using TTL level signals.

Could you perhaps explain in a bit more detail how you are controlling your laser ?

Tweakie.

1456

Mach3 under Vista / Re: Mach3 Axis Calibration Mystery

« on: February 28, 2017, 10:21:06 AM »

However, when i click the GO TO ZERO, the X-axis is moving to its ZERO at a far higher speed than I can obtain by the motor tuning without the motor stalling? What is the explanation for that? Of course if I could imitate the tuning that the Mach3 is using for the GO TO ZERO command, then I'd be much better off speedwise...

Hi Anders,

I have no explanation for that but remember that accuracy and reliability is far more important than speed so don't go setting your Velocity too high. 

Tweakie.

1457

Spanish / Re: Problema con Router CNC - Motor Tunnig

« on: February 28, 2017, 10:15:14 AM »

Excelente.

Tweakie.

1458

Spanish / Re: Problema con Router CNC - Motor Tunnig

« on: February 28, 2017, 01:53:52 AM »

Check your TB6600 drivers, they may be set to ½ step.

(200*2) / 116.18 =  3.443

Tweakie.

1459

General Mach Discussion / Re: Can this computer run mach3

« on: February 28, 2017, 01:19:48 AM »

Hi Malcolm,

You need to post the .xml file that you are using. It is in your Mach3 folder and it is called <your profile>.xml

Tweakie.

1460

Promote and discuss your product / Re: New Source For CNC DXF Files! Great CNC Artwork!

« on: February 27, 2017, 04:39:25 AM »

Roman numeral 4 is represented as "IV" not "IIII"

True - but on clockfaces it is often not the case. http://www.web40571.clarahost.co.uk/roman/clockface.htm

Tweakie.