Messages

51

Show"N"Tell ( What you have made with your CNC machine.) / Re: Machined an Iphone 5

« on: February 09, 2014, 11:53:59 AM »

Very well done.

Do you have to wear an aluminum foil cap for protection when you use it?  

John Champlain

52

General Mach Discussion / Re: Reviving old machine using mach

« on: February 08, 2014, 10:54:44 AM »

Hood,
I thought all that was done by the servo controller, and all that would be needed would be for Mach3 to supply an analog voltage to the existing controllers.  I didn't mean to add noise to this discussion.
John

53

General Mach Discussion / Re: Reviving old machine using mach

« on: February 08, 2014, 10:09:50 AM »

Mach3 step pulses can be converted to an analog voltage using a digital potentiometer.  We are currently doing this for our laser diode drivers to modulate laser power.  http://www.picengrave.com/Laser%20Setups.pdf

Maybe our circuits can be used for controlling servos, too.

John Champlain

54

General Mach Discussion / Re: Drag knife

« on: February 07, 2014, 09:03:17 PM »

OK, I see that the partial Vectric post processor file you posted is a Cut2D file

All you need to do is delete only the lines that have M03 in them, no others, and save the file with a new name as the video explained.  In my copy, there are two such lines.
John

55

General Mach Discussion / Re: Drag knife

« on: February 07, 2014, 08:31:03 PM »

What is the actual software program you are using to generate your gcode, and what Windows operating system are you using with that program?

I assume it's a Vectric program, but which one?

John Champlain

56

General Mach Discussion / Re: Z Axis Settings

« on: February 04, 2014, 10:54:16 AM »

Nicolas,
Only you can determine what is best for you, but with experience you will be able to improve your cnc operations.  I trust my system and often make multiple pieces without re-zeroing.  If a piece finishes with no problems, I know I have not lost positioning.

Pushing feed rates to the absolute maximum is often a way to assure problems.  I try to set my axis velocity and acceleration values at about 75% of where my steppers stall during setup tuning.  YMMV.

Best Regards,
John Champlain 

57

General Mach Discussion / Re: Unable to see tool path after loading new G-code file?

« on: February 03, 2014, 12:02:55 PM »

Also, do you get an error message in Mach3's status line?  Sounds like maybe a problem with the BobCAM gcode.
John Chaamplain

58

General Mach Discussion / Re: Iissues with my cnc router

« on: February 01, 2014, 08:12:14 PM »

Did you install the correct current resistor for the stepper motor?
John Champlain

59

*****VIDEOS***** / Re: Look at utube channel "myoshiiky" with mach3 output

« on: January 31, 2014, 07:49:07 AM »

Outstanding artistry, sir.

Thank you for sharing.
John Champlain

60

General Mach Discussion / Re: Yet again, UC100 issues

« on: January 31, 2014, 07:33:26 AM »

Charles,
Try this.  It worked for me on my Win 8 laptop.  I did not need it on Win 7.
http://www.howtogeek.com/167723/how-to-disable-driver-signature-verification-on-64-bit-windows-8.1-so-that-you-can-install-unsigned-drivers/
John Champlain