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Messages - MachineMaster

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1
All of the Bridgeport steppers are full step. The ones that can get .0005 movement have a 2:1 belt drive. Those were usually a BOSS 6 or a series II mill.

2
The Bridgeport steppers can be very touchy about step pulse smoothness. You may have to go to a "Smooth Stepper".

3
General Mach Discussion / Re: Breakout boards
« on: November 04, 2010, 02:07:29 AM »
Thanks, I already ordered a CNC4PC C11G. I will most likely use all of the included features.

4
General Mach Discussion / Re: Breakout boards
« on: November 03, 2010, 09:54:29 PM »
Did you mean to send me to the CNC4PC C13? Their site says:
"Do not use this board for wiring Geckodrvies, these drives require 16 milliamps signals, the parallel port can only deliver 10 milliamps. Using this board for these drives can cause lose of steps and unreliable operation. "

5
General Mach Discussion / Breakout boards
« on: November 03, 2010, 01:39:57 PM »
Are there any recommendations for a BOB? I am looking at the CNC4PC C11 and CNC4PC C11G.
I am using Gecko G320s.

6
General Mach Discussion / Re: Spindle control
« on: November 02, 2010, 07:47:25 PM »
I have some other problems also so I think I will quit trying to convert from the AHHA system and do a complete rewire using a BOB.

7
General Mach Discussion / Spindle control
« on: November 01, 2010, 10:21:31 PM »
I am having a problem getting spindle control to work.
I am using pin 14 on LPT 1 mapped to Output 1 and have M03 and M04 set to Output 1.
This is on a Bridgeport BOSS 8 so spindle control enables the spindle or stops the spindle.
No mater what I do the spindle is enabled as long as the computer is powered up.
If I shut the computer down the spindle stops. LPT 1 pin 14 is connected to the spindle enable pin that works under the AHHA control system.
I am at a loss as to what to do next.

8
General Mach Discussion / Re: When Homing, Z does not back off switch
« on: October 23, 2010, 10:28:48 PM »
A de-bounce of 200 fixed the problem. Now I have both homing and limits on the same switch. I think I will also set soft limits.
Thank you

9
General Mach Discussion / Re: When Homing, Z does not back off switch
« on: October 23, 2010, 09:49:44 PM »
Z coords do set to zero. I want to use the same switch for Z++ limit and that is set to 13 but it is not active as yet.
I will try the de-bounce.

10
General Mach Discussion / When Homing, Z does not back off switch
« on: October 23, 2010, 06:43:38 PM »
I am running Mach3 R3.042.040. I have switches on X, Y and Z for homing. I am using parallel port pin 11 for X home, pin 12 for Y home and pin 13 for Z home.
When I hit the "Home" key Z goes up until the Z home switch goes from high to low and stops. Then Y goes to the Y home switch. When the Y switch goes low Y reverses until the Y switch goes high and stops. Then X goes to the X home switch. When the X switch goes low X reverses until the X switch goes high and stops.
What is causing the Z to just stop on the Z home switch and not back off?

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