Messages

1

General Mach Discussion / Re: Missed steps and motor settings

« on: June 27, 2011, 09:35:09 AM »

The only thing that stares at me with out comparing the two files is the feed rate at some points is 13000. Your machine may not be able to do it and in CV mode it may not have the speed to make it.
 

2

General Mach Discussion / Re: Mach 3 and Linux

« on: January 05, 2010, 03:23:28 PM »

Only Linux one is EMC2 its free and real time, but to program stuff in it ie: tool change/probe. is much more involved than mach.
http://www.linuxcnc.org/
check it out.
maybe able to run it in xp emulation but not sure if it would be safe.

3

General Mach Discussion / Re: shutdowm problem

« on: December 28, 2009, 09:50:56 PM »

Easier way is to incorporate a charge pump controller into the breakout board then no problem when shutting down.

4

General Mach Discussion / Re: Need a beep function for Mach3 - For Touch Plate/Center Finder

« on: December 25, 2009, 07:58:04 PM »

Here is what is working for me, Had to stay away from the beep as it is a VB function.
Add this to the top of the button page:

Private Declare Function BeepAPI Lib "kernel32" Alias "Beep" (ByVal dwFrequency _
    As Long, ByVal dwMilliseconds As Long) As Long


'then this beeps at 500hz for 500ms on the motherboard speaker
BeepAPI 500, 500

good luck

5

General Mach Discussion / Re: Place to sell my mill and CNC conversion hardware?

« on: December 23, 2009, 09:09:40 PM »

check out Bargain Basement further down the forum page.

6

General Mach Discussion / Re: CNC4PC C11G Analog Output Spindle Control

« on: December 01, 2009, 09:43:51 PM »

Sounds good, it takes quite a bit fooling to get the two matched up, the higher the speed then the less resolution you will have, I have it setup form 0-18000 RPM so the higher speeds are less accurate but within 100 so no big deal, unless you are using the two relays on the board then one of them will be fine for running the coolant pump pins 1 and 16 I beleive control those.

7

General Mach Discussion / Re: CNC4PC C11G Analog Output Spindle Control

« on: December 01, 2009, 09:07:06 PM »

The hardest part is getting the numbers to match up having 500 RPM = 500 RPM and staying linear over the entire range, Takes some calculating and tweaking no real way around it.

8

General Mach Discussion / Re: CNC4PC C11G Analog Output Spindle Control

« on: December 01, 2009, 07:14:58 PM »

There are two things you can look at.

1. In mach under Motor tuning=>spindle your acceleration may be too low.

2. In the VFD there is a setting for acceleration/decelration if this is too low it wil be slow to respond also.

3. Also if 8v is the maximum output for a specific RPM then the VFD frequency will have to be set for it to spin at that RPM.

just go over
-mininum input voltage setting
-maximum input voltage setting
-acceleration
-decelration
-frequency at max/min RPM

take a little bit of going thru the menus to get it all set correct.

9

General Mach Discussion / Re: CNC4PC C11G Analog Output Spindle Control

« on: December 01, 2009, 07:17:27 AM »

Yeah its pretty simple setup,

1. The C11 F to V should only consume less than 10 mA.
2. The 10V input will be fine provided that in the VFD (pretty sure it will) has a selection for maximum input voltage. So its just a matter of setting up the BOB at its maximum frequency and adjusting the pot to output maximum voltage. will be like 9.3v for example (less than 10 as the maximum you have is 10). So then in the VFD the maximum input will have to be set to that value.

In the manual for the VFD there should be a part with input voltage vs speed that's the menu selection you are looking to set.

10

General Mach Discussion / Re: Booting streight into Mach

« on: November 23, 2009, 07:27:47 AM »

If you are using the computer for anything other than mach (ie: cad) then it may be a bit more of a pain as you have to go in and out of the shell, but if the computer is dedicated to CNC then it cant be beat.
with it a slow machine becomes fast as all the windows programs are restricted to a minimum. You can still run an explorer window from the CNC shell so windows programs are still available.

I like to dedicate the PC to only mach/CNC as a real CNC would be, less chance of the user screwing something up.