Messages

6261

G-Code, CAD, and CAM discussions / Re: Peck drilling in the X axis

« on: November 06, 2010, 07:59:09 PM »

I t will retract back to the initial starting point as is. If you start at zero it will end at zero.

Do you need something differrent??

(;-) TP

6262

General Mach Discussion / Re: Need help with Bridgeport Series One CNC Retro Fit

« on: November 06, 2010, 05:51:48 PM »

Well if you have the drives set to max6 amps and you have 3 drives running that would be 18amps total.

So you may have a problem in a worse case senario EVEN with only 2 drives active at a time as that exceeds your power supply.

IF you only run 1 axis back and forth as fast as they go does it loose steps?

Just a thought, (;-) TP

6263

G-Code, CAD, and CAM discussions / Re: Peck drilling in the X axis

« on: November 06, 2010, 01:50:10 PM »

Here is a slightly better version that improves the pull back cycle.

M98P1 L1
o1
(#100 = Drill Depth)
(#101 = Peck depth)
#102 = Fup[#100/#101]
#103 = [#100/#102]
#104= #103
(#105 = Pullback Value)
(#106 = Feedrate)
G91
M98 P2 L#102
G0 X[-1*#100]
G90
M30
o02
G1 X#104 F#106
G0X[-1*#105]
X[#105-.010]
G1X.010

M99
%

6264

G-Code, CAD, and CAM discussions / Re: Peck drilling in the X axis

« on: November 06, 2010, 01:34:32 PM »

FOr those that want to see the code.

M98P1 L1
o1
(#100 = Drill Depth)
(#101 = Peck depth)
#102 = Fup[#100/#101]
#103 = [#100/#102]
#104= #103
(#105 = Pullback Value)
(#106 = Feedrate)
G91
M98 P2 L#102
G0 X[-1*#100]
G90
M30
o02
G1 X#104 F#106
G0 X[-1*#105]
G1 X#105
M99
%

6265

G-Code, CAD, and CAM discussions / Re: Peck drilling in the X axis

« on: November 06, 2010, 01:14:05 PM »

First, Mach does NOT do conditional gcode so the IF is not an option(;-(

I whipped up a quicky Subroutine for you. It is programable. First copy the SUB to the Mach subroutine directory

The variables are:

#100= Total depth
#101= Peck depth
#105= Pullback value
#106= Feedrate

To Use First position your tool where it needs to be to start and then Call it with        M98 (Xpeck.txt) L1 #100=1.000 #101=.040 #105=0.050 #6=10

The Sub will then load and apply the variables and begin the cycle .It will dril the peck depth and then retract the pullback value then return then drill the peck depth ,etc,etc At the end it will retract to the start point.

I am sure you will be able to modify it as you need(;-)

(;-) TP

6266

G-Code, CAD, and CAM discussions / Re: Peck drilling in the X axis

« on: November 06, 2010, 11:21:53 AM »

You can create the same motion using an Mcode(macro) or a subroutine. I'll look in the bag of tricks and see if I can dig up what you need.

(;-) TP

6267

G-Code, CAD, and CAM discussions / Re: Peck drilling in the X axis

« on: November 06, 2010, 10:53:47 AM »

I think you will find that all the canned cycles "assume" you are drilling in the neg direction.  So it will not except the R.05. and would not drill in the positve direction.

So in your case you cannot use the g83 to drill in the positive direction.



(;-) TP

6268

General Mach Discussion / Re: Need help with Bridgeport Series One CNC Retro Fit

« on: November 05, 2010, 12:51:48 AM »

POwer supply size in amps??  IF the capacity is too low when all drives run at the same time the drives may not prove enough power to the motors and may loose steps.

How do you have the drives setup do you use micro stepping?? Large steppers suffer from mid range resonance microstepping helps with that.

(;-) TP

6269

General Mach Discussion / Re: Need help with Bridgeport Series One CNC Retro Fit

« on: November 05, 2010, 12:00:48 AM »

Start with the basics.Power supply size and voltage, drives model ampsettings, stepper make model. What are the tuning parameters, Vel, accel.

Are the drives direct drive to the screws or reduction.

WHen you say the drives tune ok up to 100 ipm, how are you testing them?

(;-) TP

6270

G-Code, CAD, and CAM discussions / Re: G73 parameters

« on: November 04, 2010, 09:35:01 PM »

INcremental:

G98
G0X0.000 Y0.000
G91
G73 X1.000 Y.000 Z-.5 R.1 Q.050 F10
X1 L3
G80
G90
M30