Messages

101

*****VIDEOS***** / DarkCut with Dark2D CAM (plasma machine) updated

« on: July 20, 2009, 03:16:18 PM »

http://www.youtube.com/watch?v=bp8GdNlRGbc

Updated !

102

General Mach Discussion / Re: Trouble getting spindle speed to work

« on: July 13, 2009, 06:11:35 AM »

Try to change the ouput high/low in the step pin of the spindle (this can be your problem).
Forget the pulleys and so on for now. Bassically you need to set the speed and direction for the spindle axis, so that at max speed you would get 10VDC.

The best description is the cnc4pc c11 board.

103

General Mach Discussion / Re: Mach3 to replace Fanuc

« on: July 13, 2009, 02:11:29 AM »

Thanks to the replys.

I have power up the machine and they all seam to be working, at least the controller and the motor drives, since I got a ready state on all drives, so the biggest problem (motor or drive damaged) is probably gone.
Nevertheless I do not have experience with fanuc OR I do not have a single person or company near that can give a little help to get going - for example - after the power on I wanted to move the machine(s) and I did not know how to. There is a forum for fanuc users ?
One of the machines is all "american" it passed through a company called merithech were they have changed electrical and physical of the machine to do a specific job. Lots of hydraulics were putted on the machine, that are now spares to me.
Thanks.

104

General Mach Discussion / Mach3 to replace Fanuc

« on: July 09, 2009, 08:59:28 AM »

Hello.

I lost my head and bought 3 big industrial machines with 10 years old for a good price, they have worked for 6 years. All have fanuc motors, amplifiers, spindle controllers and so on. One have fanuc 21i-t and the others 18i-t. I have power on the machines and the servo amplifiers went to a ready state and the controller also seams to be working fine, but now I started to clean the machines and will probably simplify the machines. Since I am confortable with mach3, and not with the fanuc controllers, I am thinking in replacing the fanuc controller with mach3 in case that I will have problems in putting the machines to work (something broken or impossible for me to putting it to work).
It is a straight approach to use all the fanuc present in the machine exept the controller?
Motors and amplifiers are ok, so I would only replace the controller. Is this possible and recommended ?

Thank you all.

105

Promote and discuss your product / Plasma dxf to gcode

« on: June 29, 2009, 02:31:10 AM »

For a easy to use, stable dxf to gcode plasma application, please visit:

http://mastor.no.sapo.pt/en/dark2d/dark2d.htm

I am not quite sure if this is in direct competition with lazycam, but if it is it will soon be removed, or let me know, that I will remove myself.

106

G-Code, CAD, and CAM discussions / Re: importing dxf file and setting feed rate - Problem

« on: June 29, 2009, 02:25:14 AM »

Try this software:

http://mastor.no.sapo.pt/en/dark2d/dark2d.htm

Easy to work with

107

G-Code, CAD, and CAM discussions / Re: Is there any other software than Lcam to convert DXF to g-code?

« on: June 29, 2009, 02:23:58 AM »

Try this one

http://mastor.no.sapo.pt/en/dark2d/dark2d.htm

It is for plasma especific

108

Brains Development / Kernel speed and brain speed

« on: June 16, 2009, 05:53:58 AM »

Hello.

Just want to know if the brain speed (number of times / time unit it is run) is in relation to the kernel speed.
I need a sensor to stop an axis, and the axis stops in a random position due to the fact that the brain does not process the input signal at the same time after the signal is high.

Thanks

109

General Mach Discussion / Re: re mach control question feed hold

« on: June 09, 2009, 01:59:39 AM »

In turn, where I use mach the most you can but it is not always correct/or safe. I had big problems in start the code after the feedhold was done. Most (all times) I start the program again, or edit the program and delete the lines that were already processed. Nevertheless I think some work was done recently so probably the feedhold is better.

Filipe

110

General Mach Discussion / Re: Plasma Application, Mach3 torch height control.

« on: June 04, 2009, 06:12:43 AM »

I am also trying to add a thc in my new plasma machine, and for now I have made the voltage divider and putted it inside of the plasma unit machine.
Before connecting the output of the voltage divider to the pokeys, I have tested the voltage divider output during cutting to make sure that the output would not damage the pokeys. I have measure the output with a simple, low cost multimeter, where in DC mode I register during normal cutting from 0.80V to 2.10V, that seams ok. The problem is during the piercing and if, for example the plate "ends" during cutting (both are limit situations), where the multimeter does not show a consistent value, and goes up to 20V for a brief instance.
I think that it is not possible to reach such a value, because the voltage divider is about 40x; and the 20V output from it was meaning that I would have 800V at the output of the plasma. I really think that is the multimeter that gets confused from the high frequency variations of the DC voltage during the limit situations (piercing and end plate).
The voltage divider also have a high speed voltage suppressor, that should take care of peak voltages if present.

Neverless I would like to receive a comment, before I have connected it to the computer and so on, of anyone that made such a voltage divider.
Thanks, Filipe