Topics

1

General Mach Discussion / X Weirdness

« on: February 11, 2008, 01:22:55 PM »

Ok I am running a gantry system 4 800oz motors and 4 gecko 203v's, rack and pinion gear reduction via timing belts on all axis, recently the machine stopped cutting round circles, there is no backlash, but if i cut a 4x4 square my x=4" and my y=3.98 it's always off by 0.02 so i figure i can't be missing steps because it's always 0.02 i tried increasing the amount of steps but then i end up hitting my x limit on a tool change, which is weird, because i thought if i increased the steps then reset everything and homed if i move 10 inches left then right the same amount of steps should be sent.....

2

Mach SDK plugin questions and answers. / Ports / Pins

« on: November 09, 2007, 10:44:30 PM »

I was wondering if there was a way to access ports/pins in the sdk for read/write

3

General Mach Discussion / Second parallel port weirdness

« on: October 20, 2007, 05:48:15 PM »

Well I got my netmos pci parallel port card working, sortof, basically the address is 0xd000 and i set that in mach 3 under port 2 with pins 2-9 as input. I also set a mpg to pins 2,3 on port 2 and input 1 on pin 10 of port 2, now when i go to diagnostics and jog the mpg or hit the button the ports on the port 1 display toggle, but not input 1 or mpg which are set to port 2 ?

4

General Mach Discussion / Jerky Movement

« on: October 15, 2007, 05:48:45 PM »

Well I'm running some 3d surfacing, but mach is constantly accelerating / decelerating , i tried running the code on quantum and it's nice and smooth constant velocity, even with jerking turned off?? how come in mach 3 feeds range from 10 to 50 in quantum it stays at 145 except when changing directions weather the jerk option is on or off, any way to get this running smooth in mach 3 ? it's for production work using mastercam....

N190 G01 Z.1879 F50.
N200 X-1.4597 Y1.4908 Z.1871 F145.
N210 X-1.2639 Y1.2711 Z.1791
N220 X-1.2711 Y1.2555 Z.1797
N230 X-1.316 Y1.2084 Z.1831
N240 X-1.3496 Y1.171 Z.1856
N250 X-1.3968 Y1.1142 Z.1892
N260 X-1.4281 Y1.074 Z.1917
N270 X-1.4671 Y1.02 Z.1948
N280 X-1.4988 Y.973 Z.1973
N290 X-1.5379 Y.9097 Z.2006
N300 X-1.5646 Y.8631 Z.2029
N310 X-1.5976 Y.8003 Z.2058
N320 X-1.6275 Y.7376 Z.2085
N330 X-1.6478 Y.6917 Z.2104
N340 X-1.6732 Y.6277 Z.2128
N350 X-1.6948 Y.5667 Z.215
N360 X-1.715 Y.5022 Z.2172
N370 X-1.7322 Y.4394 Z.2192
N380 X-1.747 Y.3766 Z.221
N390 X-1.7594 Y.3139 Z.2227
N400 X-1.7694 Y.2511 Z.2242
N410 X-1.7753 Y.204 Z.2253
N420 X-1.789 Y.1941 Z.2263
N430 X-2.0872 Y.2112 Z.2434

5

General Mach Discussion / General interface questions

« on: October 13, 2007, 04:26:26 PM »

I hooked up a pic using modbus and a mpg to the pic, when i got i get 10,11,12,13,12,11 counter or clockwise.... i'm thinking of just adding a second parallel port.. on a parallel port is it possible if using pins 2 to 9 to make a button array lets say using 4 input pins for buttons giving 1000,0100,0010,0001,1100,0110 ... etc i'm wondering if this could be mapped into the brain controll take  oeminput1 and compare it to the other inputs.. anyone try this or have any ideas?

6

General Mach Discussion / MAch 4 Grex

« on: October 30, 2006, 07:18:45 PM »

Anyone run mach 4 with a geko grex in production? looking to change my drive system from steppers to servo with geko's and a grex

7

General Mach Discussion / A Axis Questions

« on: September 18, 2006, 08:17:58 PM »

Ok here's the deal i'm running x,y,z at 2000 steps my A axis runs at 300 steps and i usually use a feed of 25, x y z are fine but man does my a crawle it's soo slow it hurst, is there a way to override frrd rates for an axis? i would like my a axis to have a feed of 2000

Just a question, any other ideas are welcome

8

LazyCam (Beta) / X Axis Wrap

« on: July 08, 2006, 10:03:13 PM »

When will x axis wrap be available?

Thanks