Messages

2671

Mach3 under Vista / Re: Mach3 in Windows 7... Z plane problem...

« on: March 02, 2017, 02:07:28 AM »

Perhaps place a mark (or sticky tape etc.) on your Z axis motor shaft to verify if it actually is turning during the job.
Also check the tightness of the tool in it's collet.

Tweakie.

2672

General Mach Discussion / Re: Drivers only power up for a short time

« on: March 02, 2017, 01:42:33 AM »

Could you carry out a measurement ?

Use a multimeter across your power supply to make sure the Voltage stays up when your drives go into low power (standby) mode.

Does setting SW4 to 0 on your drives remove the problem ?

Tweakie.

2673

General Mach Discussion / Re: Can this computer run mach3

« on: March 02, 2017, 01:37:04 AM »

Hi Malcolm,

Something else to try...

Disable the Outputs# (as previously mentioned).
Change Step Low Active (to a tick) for the X, Y, Z axes in Motor Outputs.
Change Step Pulse & Dir Pulse from 5uS to 2uS in Motor Tuning.

Tweakie.

2674

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

« on: March 02, 2017, 01:30:46 AM »

I agree, a flip-flop may be the best solution.

Tweakie.

2675

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

« on: March 01, 2017, 04:21:17 AM »

Just take it one step at a time, we will think of something 

Tweakie.

2676

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.

2677

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.

2678

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.

2679

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.

2680

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.