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Messages - curtisturner

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Ok tried it with 20 lines and had to slow it way down, because 20 line is only about 1/16 of an inch.
With out it being slowed down it went real fast on fast movement
After slowing it down it readover half the line before it even moved at all.

So I then tried to make the movement a lot larger like .1 inch each and it still chunked the movements instead of a smooth fluid motion.

Is there a setting I am missing ?

BTW, it jogs very smooth and it you tell it in Gcode to move by it self up and down inches it is very smooth and continuous

Thank You

Yes the Z axis moves smooth if the line looks like this
N1000 Z 1.00;

Here are all my Motor settings
Steps = 50911
IPM = 53.034
Accl = 2000

Steps = 1015.4
IPM = 49.99
Accl = 2000

Steps = 56.89
IPM = 6666  (is truely degrees of rotation)
Accl = 80000

Thank You

Yes the shaft that is between gearhead and ballscrew.
Or in other words the Z axis is moving 0.00292777388626453 in one move not slowly as the other 2 axis are

even if I run the G01 in front of each line that does not help
2 out of 3 axis seem to provide smooth linear interpolation.

To better understand I am machining the outside surface of a cone shaped fiberglass shell starting at the biggest diameter and working down to the smallest while the A axis is spinning. The real problem is it is leaving machining marks every time the Z axis lowers.

I have G64 in the start line

Majke one more mention, the DRO for Z axis shows slow continuous motion

General Mach Discussion / HELP! My Z axis is moving in chunk steps
« on: May 24, 2011, 10:41:08 AM »
Here is the problem.
I have a 4th axis machine where A is the chuck X moves the length of the object being machined and Z is the depth.
The A axis keeps a perfect continuous RPM and the X axis is moving constantly at say the rate of 128th of an inch per second and the servo motor for the X has a constant smooth rotation. However the Z axis servo is not moving except every few seconds and it then moves about 10deg instead of much smaller say 1/2 deg steps. Is there a setting I am missing or is my G-Code wrong?

A Few Facts
All 3 axis are Yaskawa Servos
Z axis is a ball screw driven by a 10:1 gearhead

Here are a few line of G-Code
N000035     A1440 X0.077 Z-0.00281176075414713;
N000036     A1440 X0.077 Z-0.00285099436525282;
N000037     A1440 X0.077 Z-0.00288965724492307;
N000038     A1440 X0.077 Z-0.00292777388626453;
N000039     A1440 X0.077 Z-0.00296536717817242;
N000040     A1440 X0.077 Z-0.00300245854969372;
N000041     A1440 X0.077 Z-0.00303906809810783;
N000042     A1440 X0.077 Z-0.00307521470288652;
N000043     A1440 X0.077 Z-0.00311091612742498;
N000044     A1440 X0.077 Z-0.00314618911008591;
N000045     A1440 X0.077 Z-0.00318104944591235;
N000046     A1440 X0.077 Z-0.00321551206015691;
N000047     A1440 X0.077 Z-0.00324959107459355;

Thanks in advance

SmoothStepper USB / spindle hookup
« on: March 18, 2009, 11:34:01 PM »
I have a 2.2K spindle from china and am using the smooth stepper board, I can not find any where exactly how to wire the spindle control to the SS board for speed control and on and off

Thanks in advance

Screen designer tips and tutorials / Visual cycle data
« on: December 20, 2008, 10:37:39 AM »
Is there any way to get at the canned cycle data ?
For instance I would like to display the current position in a canned cycle.

Please help?


SmoothStepper USB / USB connection problem
« on: August 11, 2008, 10:24:14 AM »
Every once and a while I will get an error saying the smoothstepper has lost comunication with USB and you must unplug and replug in the board in and restart mach 3

I switched computers and it still does it ?
I have 2 boards and both are doing it ?



General Mach Discussion / Output control ? Parrallel or Grex or ?
« on: May 03, 2008, 04:40:21 PM »
Ok I have been using Mach 3 for a few years currently on 3 machines.
2 of the machines are running printer ports and the other a Grex

Is there a better solution as most new PC's do not come with printer ports and the Grex is loosing intrest with the developers.

My current Grex system need a very fast pulse rate and works great with the Grex
Except every once in a while it will start acting crazy like in the middle of running a file it will start jogging different directions and stop running the file.

Is there any new (relatively cheap<$500) solutions that do not use a printer port like the Grex?


I have several hubbard relay boards and I can not seem to get them working at all.
I set it up for pin 16 and pin 17 and then set up the outputs 1 and 2 for pin 16 and pin 17.
Set the spindle relay on for output 1 and the flood for on for output 2

I have tried all 3 boards so there seem to not be a board problem.


Thanks in advanced

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