Messages

21

VB and the development of wizards / Re: Homing Routine ....again....

« on: May 08, 2008, 11:07:20 PM »

Hi Darc,

Maybe you could find out the homing X and Y position, assign all the position into a variable, add the variable with 5 units, and put is as another variable. You can use G00 to rapid to the position with added  5units , running at a certain feedrate, and G00 to rapid the position with the original position at a slower feedrate.

Here's just an idea I could think of.

Charles

22

General Mach Discussion / Re: Circles aint Round

« on: February 20, 2008, 08:57:06 PM »

Yep, i have done all the Mach3 drivertest and other things that I could think of. I have already assembled 4 CNCs during the past, but it's that motor that makes me feel so inconfident.

Charles

23

General Mach Discussion / Circles aint Round

« on: February 19, 2008, 11:58:15 PM »

Hello Guys,

I'm not sure whether it's the right place to post this, but i am facing this problem..
 
I have 2 units of 1800 oz/in KelingInc 8.8Amp stepper motor configuration, with the combination of G203V.

This is hooked and together controlled with Mach3.

I am getting a very weird response from the g-codes being run.

I used SheetCAM and generated a g-code of a circle in a diameter of 500mm. I send it over to Mach3, fitted a pen (as a CNC plotter) and start plotting in the paper. The result was unexpected. The circle seemed to be flat when reaching the edge of the circles, as it there was a shaft with 4 keyways milled on it. A picture is posted to reflect the explanation.

When I program Mach3 to plot is slowly, the CNC seems to be ignoring slower pulses. If fast, the circle will look better. If too slow, the motors doesnt move at all. minimum speed that can be run is 700mm/min or higher. At 700mm/min, the circles are just like rectangles O.O

In conclusion, I feel that the steps are rough. Can anyone help me out? Thanks in advance.

Charles

24

General Mach Discussion / Re: Mach 3 on lap top wont operate

« on: January 17, 2008, 08:11:19 AM »

True, I purposely bought a Pentium III laptop with a parallel port on it, The motors only scream but it doesn't move. Maybe what we can do is to use a breakout board with optocoupler to make sure the signals are solid enough to perform CNC operations

25

General Mach Discussion / Re: Help building a power supply

« on: January 17, 2008, 08:05:08 AM »

Hello all.
Im getting into building my first power supply. Im pretty comfortable assembling electronic parts. but determining which ones I need is another story.
I need a little help selecting the capacitors I need for my project. I have a transformer that is more than adequit for my purposes. I bought an Antek torodal transformer and bridge rectifier from homeshopcnc.com but they no longer sell the transformers or the bridge rectifiers. any way the transformer is rated for 1000VA and has dual 45V output windings.
If you go to the Antek website. It is
http://www.toroid-transformer.com/
the transformer Item number is
AN-10445
now I am really only running two small nema 23 servo's and a RS23-370 oz stepper off this huge supply. so Im not really sure what size capacitor to use to build the supply.
any help would be appreciated.
also a source to purchase them would be helpful as well.
Thanks

Hello!
I'm sure this will help you out, as the following link properly guides me in making a perfect power supply!
http://campbelldesigns.net/how-to-build-a-power-supply.php
Read everything especially the PDF File, I'ts very helpful!
Good Luck!!!!

26

VB and the development of wizards / Can I Make OEMDRO Count?

« on: May 10, 2007, 12:07:45 PM »

Hi guys, i want to make a DRO count, let say from 100 count to the value of X, i've no idea what seems the problem 0.0, can you help me out? thanks!

Option Explicit
Declare Sub Sleep Lib "Kernel32" (ByVal dwMilliseconds As Long)
Dim X As Integer
Dim C
Sub main ()

X = getOEMDRO(1005)
For C = 100 To X
SetOEMDRO(1006,C)
Next C

End Sub

PS: As in i can see the moves from 100 to x, and i can see it reducing to x?

27

VB and the development of wizards / Re: Is it possible to have an elapsed time display for VB code?

« on: May 10, 2007, 10:41:36 AM »

okay guys, ive settled it, i have to install a mach3 with driver in order the mach3 system to count properly, thx guys! =>

28

VB and the development of wizards / Re: Is it possible to have an elapsed time display for VB code?

« on: April 29, 2007, 11:42:22 AM »

yes, it's in seconds, and i'm very sure because i've been using the G4 to delay my oxy and plasma cutting.

29

VB and the development of wizards / Re: Chinese message !

« on: April 27, 2007, 09:19:05 AM »

haha, that ain't chinese,  that's some kind of korean word, i'm sure you've activated the east-asian language on your computer xD - but that's wierd

30

VB and the development of wizards / Re: Is it possible to have an elapsed time display for VB code?

« on: April 27, 2007, 09:13:06 AM »

Scott,

I don't quite understand what do you mean, it was just an example, my real code was for controlling heights and delays for my oxy/plasma.

what did u mean by " Post after you Post the M3 if you want them close together"?