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Messages - Tweakie.CNC

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2361
General Mach Discussion / Re: How To: Add Attachments/Files To the forum
« on: January 14, 2017, 06:48:36 AM »
Hi Guys,

Just to reiterate a point Dave has already made…

Now that we all have high resolution cameras could we all please, if necessary, resize our pictures to a maximum of 800 x 600 pixels before posting.
This makes the images much easier for everyone to view and also saves on forum memory space (and cost).

Thanks.

Tweakie.

2362
General Mach Discussion / Re: Incorrect movement for X & Y
« on: January 14, 2017, 05:11:53 AM »
Your axis step size is < 0.0008 mm.

An error (however it is caused) of 0.8 microns (1 micro-step) is many times smaller than the accuracy of your machine so why worry ?

As an additional thought, check that your X axis and Y axis 'Step Low Active' state is set correctly in Motor Outputs (it is usually set Active Low).

Tweakie.

2363
General Mach Discussion / Re: Can't reset Estop
« on: January 14, 2017, 04:27:12 AM »
Check the instructions for your HG08 - In the absence of an Estop switch you may need to connect a link between IN5 and Vcc.

Tweakie.

2364
General Mach Discussion / Re: Incorrect movement for X & Y
« on: January 14, 2017, 03:42:46 AM »
Your machine will only move in increments (resolution) determined by the step size of your motors (set in Motor Tuning) and those are the increments (multiples) displayed by the Mach3 DRO's.

What is your X and Y axis step size and are you set-up for Inch or Millimeter units ?

Tweakie.


2365
General Mach Discussion / Re: Can't reset Estop
« on: January 14, 2017, 03:32:57 AM »
To which pins have you wired your (normally closed contact) EStop switch ?

Tweakie.

2366
General Mach Discussion / Re: Big trouble
« on: January 14, 2017, 03:08:50 AM »
Quote
I Am still having noice problems I will deal with that later.

I suggest you deal with the noise problem before you do anything else. Until that issue is resolved Mach3 may not operate as expected.

Please attach your .xml file then your settings can be checked - this may give us a better understanding of the problem.

Tweakie.

2367
General Mach Discussion / Re: axis a set up in mach 3
« on: January 14, 2017, 02:48:43 AM »
From the MPG screen make sure Jog mode is selected, does operation of the 4+ / 4- keys alter the 4th axis DRO's ?

Tweakie.

2368
General Mach Discussion / Re: NO INPUT SIGNALS
« on: January 14, 2017, 02:42:24 AM »
Quote
my inputs worked untill i had a storm..

If the storm destroyed your inputs then I suggest you start replacing parts one at a time until the problem is fixed. Start with the BoB if that doesn't do it  then replace the LPT parallel port of the PC.

Tweakie.

2369
Share Your GCode / Re: Demo Gcode
« on: January 14, 2017, 02:32:16 AM »
Hi Robert,

Welcome to the forum.

The demo Gcodes are all about learning how to use Mach3 and understanding Gcode so you are starting out on a great adventure my friend.

As an example, load Alien.tap. You will notice that the Gcode contains a G20 which tells us that the code has been written in Imperial (Inch) units. Click on Toolpath (Alt-4) and you will see the ‘Program Limits’ which tells us that the image size will be X Range + / - 2.4605” and Y Range + / - 3.4136” with a cut depth of 1/8”. These dimensions can be easily altered by returning to the Program Run screen and altering the Scale DRO’s – a value of 1.0000 is full size, a value of 0.5000 is half size, a value of 2.0000 is double size and so on. After changing a Scale DRO press ‘Enter’ (CR) then ‘Regen. Toolpath’. Returning to the ‘ToolPath’ screen will show the revised ‘Program Limits’. It should also be noted that Alien.tap has it’s Datum (X0,Y0) at the centre of the work (many Gcodes have the Datum at the lower left hand corner of the work).

Cut depth can be altered by changing the Z axis Scale DRO but it may be better to alter the Gcode program itself. Using Notepad select Edit / Replace, copy the first negative Z value found (in this case Z-0.050) into the ‘Find what’ box then type in your selected depth into the ‘Replace with’ box, then click ‘Replace All’ – then save the changes.

The dimension and cut depth for all the Demo Gcode programs can be found and altered in this way.

To run Alien.tap ‘as-is’, select a suitable material => 5” x 7” x ¼” set the cutter to dead centre of the work and zero the X and Y axis DRO’s, set the cutter (I suggest a ‘V’ bit for this one) just touching the surface of the work and zero the Z axis DRO, raise the Z axis so the cutter is clear of the work. Click on ‘Cycle Start’ and away you go. If necessary adjust Feed-Rate with the FRO slider.

The more you do the easier it all becomes but be prepared for some mega fails along the way.

Hope this helps.

Tweakie.

2370
Works in progress / Re: New (revised) Mach3 6-axis screen
« on: January 13, 2017, 01:47:45 AM »
When you download and install a new screen you also need to copy it's associated graphics to the Mach3 Bitmaps folder.

Tweakie.

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