Messages

1

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: June 04, 2011, 07:21:54 AM »

I have already a miliamperometer!!I will try it!!!!! To see what will happen!!Fingers crossed:) ..Thanks

2

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: June 04, 2011, 03:21:14 AM »

** Until now the laser output in the engraving mode was connected someway with the feedrate!

3

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: June 04, 2011, 03:18:58 AM »

Tweakie good morning! I was thinking about two things. 1) how i will be able to achieve shades in the engraving mode if I will  change the laser output with analog way manually.I suppose I will set the potentiometer to a certain value and I will not be able to change it through the engraving.During cutting I will not have this problem because the laser output is the same and doesn't change.
2)If by connecting my pin 9 ,that gives a pwm pulse eguivelant to 0-5v, on the TTL(L) ,I will damage my PSU?
Thanks.

4

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: June 03, 2011, 02:59:11 PM »

Tweakie thanks again I will try it and  tell you as soon as I test it.....

5

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: June 03, 2011, 08:00:09 AM »

I will do that
Thanks

6

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: June 03, 2011, 07:25:24 AM »

I do exactly this! I use the same pin (9) that i control the laser when cut.In cutting I  control it like controlling the spindle speed.This only when I cut.For engraving I have made a separate Mach (engrave) where I disable the spindle and I enable pin 9 for the digital trigger.Do you see a problem in that connection?

7

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: June 03, 2011, 07:05:41 AM »

I connect it to the board of mach where all Mach signals leave!

8

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: June 03, 2011, 06:54:31 AM »

I tried to attach a video but was to big.In the video it shows that the to images are made as you said.The left from left to right and the right from right to left!!!

9

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: June 03, 2011, 06:52:54 AM »

Thanks Tweakie.Actually my board sends the pwm signal of mach dirrectly to the Psu.The PSU works either with Pwm or Analog dc 0-5v. The problem with the external potentiometer is that I cannot control on/off the laser!!

10

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: June 03, 2011, 05:25:52 AM »

As you see for 20000 the images are 2 and the power output is too strong(how I can modify the output?)
with 7000 the images come closer thats why you see totally burnt in the middle where the two imagew meet
4500 the same but here is more obvious.The black is where the two images meet..........