Messages

311

General Mach Discussion / nesting subroutines

« on: March 12, 2012, 02:19:38 AM »

hello everyone

is it acceptable to mach3 to nest subroutine calls?

and if it is possible to nest subs - then is there a maximum to the level of
nesting allowed

regards

fred evans

312

General Mach Discussion / Re: home sequence

« on: March 11, 2012, 09:14:52 AM »

Hello Rich

When You say "the lathe manual " do you mean
"Using Mach3 Turn" If so mine finishes on section 10.12

regards

fred

313

General Mach Discussion / Re: home sequence

« on: March 11, 2012, 07:51:14 AM »

Thanks rich - will do

314

General Mach Discussion / Re: referencing the tool table

« on: March 11, 2012, 07:50:00 AM »

thanks ,I will run that way from now-

Much easier

does the homing of the toolpost affect the other settings??

315

General Mach Discussion / home sequence

« on: March 10, 2012, 10:19:07 AM »

Hello All

Mack turn on a lathe

When I do g28 for the machine to "go to home"
the first movement is on the z axis and this causes a crash into the rear tool holder
How can i code for a home (g28) to home the z axis first
it need to go z home before x home

regards

fred evans

316

General Mach Discussion / referencing the tool table

« on: March 10, 2012, 02:38:52 AM »

Hello chaps- sorry to harp on a subject that has probably been asked dozens of times

If possible point me to topic replies that might be useful on the subject of
basic tool table referencing in Mach3

I am trying to get my mind around the following newbie issues

Scenario

My machine is a lathe and I dont have home switches as yet

i set the tool table up as follows

tool 000  Empty
Tool 101 general purpose turning tool
tool 202 parting tool
tool 303 boring bar
All are replaceable tip tools

on close down at the end of a days work I click "save fixtures" for fixtures

next morning when I start up i want to pick up where I left off

I want to use the same tools and i am not sure which tool to
use when I reference x and y axis when i switch on .

I presume that it is not nessessary to re- reference all the tool offsets again
and it will be nessessary only to reference one tool?
Is my assumption correct ? If so which tool

all remarks,hints ,suggestion and banter will be accepted gratefully
and in good humour!!

regards
Fred From South africa

317

G-Code, CAD, and CAM discussions / Re: More questions on calling sub-routines

« on: March 10, 2012, 01:49:16 AM »

In general programming ( I use dbase 4 ver 2) it is possible to create a loop
which will stop when a variable reaches a certaim value.
It looks like this

x-1

do while x < 10
   (do something)
   x = x+1
enddo

(it will go through the loop until x= 10 and then jump out to the line
following the "enddo"
 
Is something like this available in Mach3 gcode??

where can i find something about it

many thanks

fred evans from south africa

318

General Mach Discussion / setting up tooltable

« on: March 09, 2012, 05:22:27 AM »

Hello everyone---

Trying to set up mu lathe

Please look at the procedure i am trying to use to set up the tool table.

I cant get the tooltip to repeat when changing tools

t 0101 is the master tool

I am doing the following
( I am using a dickson toolpost)
( the machine is set to diameter mode)
1. select manual
2. put tool 0101 in the tool post
3 enter T0101 Into the mdi line and press enter
4 jog the toolpost to a convienient place and press set home Z    set home x
5 exit screen "manual"
6 select tooltable
7 use jog to set diameter and take a small cut
8 do not move x axis -- but jog tool out of the was and measure the diameter
9 enter this diameter into the x axix DRO
10 jog the tool to righthand edge of the workpiece
11 enter this dimension as 0 into the z dro
12 now select "tool table editor"
13 enterthe description and make sure that all the DRO's are showing "Zero"
14 close tool table editor
15 mdi to2o2 and enter
16 Jog the next tool to the X position and take a small cut
17 Measure the cut and enter this measurement into the X DRO in "Part Zeroing  coordinates"
18 select touch x and press enter
18 Jog to position z0
19 enter 0 into z DRO of "part Zeroing coords"
20 select touch z and enter
21 look at tool table editor - there will be values entered next to tool 2
21 now i exit the tool table
22 open automatic
mdi t0101
mdi g28 (tool will go to home position)
mdi g0 x23 z0  ( tool will go to this position )
mdi g28  ( tool return home)
mdi t0202  ( put tool 2 in the toolpost)
mdi g0 x23 z0 ( now i expect the other tool to move to this position)

when i do this there is usually an error ( the error looks like z is going to radius and not dia)

Your input is appreciated

fred evans

319

G-Code, CAD, and CAM discussions / tutorial for gcode for beginners

« on: March 07, 2012, 03:36:18 AM »

Hello All
I asked on this forum for an entry level tutorial for gcode beginners.

Well I must thank all who responded and i am now writing as a reportback 

I am working through the tutorial on the site of http://cnccookbook.com

and I can only most highly recommend it as a tutorial for a new user

Thank you very much cnccookbook and all your henchmen
regards

fred evans

320

G-Code, CAD, and CAM discussions / Re: looking for entry level Gcode tutorial

« on: March 03, 2012, 02:05:26 AM »

Thanks chaps--
You have been a great help

fred