Messages

1691

General Mach Discussion / Re: G76 pitch

« on: March 04, 2008, 12:20:37 PM »

Is the thread out of pitch all the way down its length or is it just at the start for a few turns?

If the pitch error is at the start only :-

What can happen is the cutting load of the tool can stall the spindle for a split second and throw out the pitch.

Also you have to allow for acceleration of the tool, in most cases 6mm (1/4") depending on the spindle speed and reaction time of your machine, the heavier the saddle the more time allowed.

If its all the way down :-

Your machine calibration is out.

Graham.

1692

Feature Requests / Re: Turn mode. Tool tip radius compensation

« on: March 03, 2008, 05:04:35 PM »

Is this a question or a statement?

Graham.

1693

General Mach Discussion / Re: its gonna be one of those days.

« on: March 03, 2008, 04:55:56 PM »

Always make sure you have a return on the last line, that is the most common cause of non running subs.

Putting a % at the start and end of the programs helps.

Graham.

%
G90 G01 X0.0 Y0.0 F1000
M98 P1
M98 P2
M30

O1
X0.0 Y0.0
X1.0 Y0.0
X1.0 Y1.0
X0.0 Y1.0
X0.0 Y0.0
M99

O2
X2.0 Y0.0
X3.0 Y0.0
X3.0 Y1.0
X2.0 Y1.0
X2.0 Y0.0
M99
%

1694

General Mach Discussion / Re: How to get started

« on: March 03, 2008, 04:42:16 PM »

As long as the Camtronics board is step and direction driven then all you will need is the mach3 software and a bit of time to work out the pin connections.

All the guys here will help out with any questions you may have.

Graham.

1695

General Mach Discussion / Re: G95 lathe problem

« on: March 03, 2008, 04:36:04 PM »

If you are running at low RPM's then it is better to use a multi slot (4 slots works well) index wheel and timing input instead of a single slot and index.

Graham.

1696

General Mach Discussion / Re: MACH3 is starting the router on its own... Scarry!!!!

« on: March 03, 2008, 03:57:38 AM »

Post us a photo of the set up showing the relay, we may be able to get some ideas from it.

Graham.

1697

Works in progress / Re: Led City

« on: March 03, 2008, 03:41:38 AM »

These screens just get better, I like clear, clean looking, informative screens, keep up the good work.

I am looking forward to trying them.

Graham.

1698

General Mach Discussion / Re: Z axis direction

« on: March 03, 2008, 03:36:56 AM »

If you are still working Z plus.

Move to top of job

In Z axis DRO type 0.1 and press ENTER

Move away from job a safe amount ( 1" or 25mm)

if you are working Z minus.

Move to top of job.

Press Z axis zero button next to DRO.

Move away a safe distance

------------------------------------------

Run program with care.  Turn on single block and slow rapids down to a crawl.

Graham.

1699

General Mach Discussion / Re: Missing steps at 10 ipm? Taig, Mach3, Xylotex

« on: March 03, 2008, 03:19:08 AM »

While you are running a NC program, bring up the task manager and see if the cpu usage increases at the same time as the motors change tone, it could be background tasks grabbing the cpu.

Graham.

1700

Forum suggestions and report forum problems. / Re: Problems with Mach3

« on: March 03, 2008, 03:05:02 AM »

Hi Chico,

post some pictures of the machine and the control so we can get some idea of what is needed to get you going.

Post your .XML file so we can check that too.

Graham.