Topics

1

G-Code, CAD, and CAM discussions / MasterCam9 Threading Problem

« on: May 13, 2009, 09:42:55 PM »

I’m using MasterCam9 to generating the tool paths for my CNC Lathe and using Mach3 Turn.  
What I find interesting is the letter “E” that is used in the MasterCam tool path for threading.

Here is an example of what it generates for a ½-20 thread.
G20
(PROGRAM NAME - 500-20  DATE=DD-MM-YY - 13-05-09 TIME=HH:MM - 18:27)
(TOOL - 1 OFFSET - 1)
(LTHREAD OD THREAD RIGHT  INSERT - NONE)
G0T0101
G97S200M03
G0G54X-.7Z.128
Z.032
X-.4812
G99G32Z-.5 E.05   (notice the capital E)
G0X-.7
Z.0288
X-.4697
G32Z-.5 E.05
G0X-.7
Z.0263
X-.4606
G32Z-.5 E.05
G0X-.7
Z.0241
X-.4528
G32Z-.5 E.05
G0X-.7
Z.0222
X-.4459
G32Z-.5 E.05
G0X-.7
Z.0222
X-.4459
G32Z-.5 E.05
G0X-.7
Z.032
Z.128
G28U0.W0.M05
T0100
M30

If I change the E to an F it works just fine but Mach3 sees the E and an error.

I have looked and looked for anything that would have to do with the E axis and I can’t even find anything on the Internet about an E axis.

Does anyone know MasterCam9 Lathe and can tell me if there is a setting for this?

Thanks
Dave

2

General Mach Discussion / True Spindle Speed RPM

« on: April 26, 2009, 01:50:35 AM »

I need some help with attaching the Pulse Index Board that I purchased from CNC4PC.  It comes ready to install just have to supply 5VDC to it and run the output to a input on the parallel port.  That
Seems to be pretty simple except I’m not sure which pin of the parallel port and what the settings I need to make in Mach3 Turn in order to get true spindle RPM.  Can any body help me with this?

Dave

3

FAQs / Installing Encoders

« on: April 09, 2009, 10:57:18 AM »

I am using Mach3 Turn and was wondering if anybody knows how to hook up a (5 pin) optical encoder directly to the parallel port.  The connector’s pins are
1=Gnd, 2=Index, 3=Channel A, 4=+5VDC, 5=Channel B. Any help would be greatly appreciated.