Messages

1731

General Mach Discussion / Re: Can you set up 2 different machines with Mach3?

« on: February 17, 2008, 04:04:20 AM »

That's the way to do it.

Graham.

1732

General Mach Discussion / Re: gcode preprocess

« on: February 17, 2008, 04:02:20 AM »

Hi Ray,

you need to update your user macros, they need to be in this format

If IsLoading() Then
  ' any code for initialisation
Else
  ' your macro code
End If

This will stop the code from running during loading and pre processing the NC code

Graham.

1733

LazyTurn / Re: LazyTurn

« on: February 14, 2008, 03:22:00 PM »

Thanks chip for the conversion info, luckily I have the tools to correct the problem.  I just find it so odd that a DXF can be loaded into many programs and saved out in a DXF format that will then not load into other programs why should anything be changed?  DXF is a standard 

Yes its a rather large chess king, made as part of a garden lawn set in black and white acetal.

While turn is getting some attention, would it be possible to get some of the nice Fanuc bits included, e.g.

Auto chamfer

G01 X20. C.25 (form a .25mm chamfer)
Z-10.

Auto radius

G01 X10. R-1. (form 1mm ext corner rad)
Z-10. R2. form a (2mm internal rad)
X20.

Incremental moves

G00 X50. Z2. (move to start point)
G01 Z-100. F.35 (feed to length)
G00 W102. U1. (rapid to Z2. and X52.)
 
Graham.

1734

LazyTurn / Re: LazyTurn

« on: February 14, 2008, 12:04:39 PM »

Hi Art,

Great to see you could not resist the tap, tap, tap, of the keys.

Lazy turn is looking good so far, I can not get this to load, it is just lines and arcs, no splines etc.

No big problem just thought it may be useful as a sample.

Can you guess what it is yet? 

Graham.

1735

G-Code, CAD, and CAM discussions / Re: Polar Mode in Mach3 Mill

« on: February 13, 2008, 01:42:11 PM »

Roger,

here is a PCD hole macro using polar code

Graham.

#1=8 (number of holes)
G21 G40 G00 G90
G00 Z10.
M98 P0002 L#1
G15
G90
M30

O0002
G16 X25. (radius)
G91
G81 Y[360/[#1]] Z-10. F100. (drill hole)
G15
G00 Z10.
M99

1736

Tangent Corner / Re: Denford Orac Auto Chuck

« on: February 09, 2008, 10:07:21 PM »

As long as everything runs true I see no problem.

Graham.

1737

General Mach Discussion / Re: Servo system

« on: February 09, 2008, 09:42:04 PM »

here are some links

http://www.motioncontrolproducts.co.uk/index.php?cPath=27_29

http://www.motioncontrolproducts.co.uk/index.php?cPath=28_31

Graham.

1738

Tangent Corner / Re: Denford Orac Auto Chuck

« on: February 09, 2008, 04:17:13 PM »

Hi John,

in general collet chucks take less power than 3/4 jaw chucks, they run smoother and quieter,  they also need less clamping force than a 3/4 jaw chuck due to the amount of surface area covered by the collet.

Graham.

1739

General Mach Discussion / Re: Servo system

« on: February 09, 2008, 04:04:39 PM »

I run servos on a Boxford lathe and the accel is 600 and velocity is 4850mm/min no loss of steps, the motors are nema 23 size.

0.22 Nm Stall Torque
1.7 Nm Peak Torque
3.1 Amps

They work on a 10 Amp linear 48 volt supply using 500 ppr encoders, the accuracy is .01mm/300mm all day long.

Graham.

1740

General Mach Discussion / Re: Feed Rate

« on: February 09, 2008, 03:46:10 PM »

It also depends on weather this is a mill or a lathe, if its a lathe F1 can be F1 per rev or F1 per minute, mills are normally F1 per minute.

Graham.