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Messages - Bucks

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Share Your GCode / Re: Demo Gcode
« on: February 25, 2017, 04:08:52 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.


THANKS for this info on changing dimensions & cut depth it's very helpful, I look forward to trying some of these sample GCode later today!

FAQs / Re: Spindle not working
« on: February 23, 2017, 04:35:18 AM »
THANKS for your help it's much apreciated!
Sorry to be so dumb but I'm not 100% sure what you mean by external motion controller setup & vfd setup! Where will I get this information?

FAQs / Re: Spindle not working
« on: February 23, 2017, 04:21:16 AM »
I've just had a email notification saying that you've replied to this thread Tweakie, but I can't see a reply!

FAQs / Re: Spindle not working
« on: February 22, 2017, 04:52:12 PM »
Anyone willing to help?

FAQs / Re: Spindle not working
« on: February 22, 2017, 11:40:11 AM »
As far as i know we've setup all the parameters but the spindle still isn't working! as far as i know the stepper motors are all working fine & soft limits set etc its just the spindle motor which wasent very clear on the instructions weve got! is there any other software/plugins/drivers etc we'll need from the Chinese for this machine to work apart from the plugin for the rnr usb controller? ive attached the new (legal) profile  :)

FAQs / Re: Spindle not working
« on: February 22, 2017, 04:43:10 AM »
THANKS for the info Tweakie it's much appreciated, the profile we got from the Chinese wasn't a fully loaded working profile (if you get what I mean) we had to go through all the parameters one by one using there instruction manuals & had to find some info on google & YouTube, were just in the process of starting from fresh & then will follow the install & config guide as you suggested & see how far we get!

FAQs / Re: Spindle not working
« on: February 22, 2017, 03:51:28 AM »
Hi Bucks,

The recommendation is that you document all of your configuration settings........... every one of them. Do a clean install of the OS, download Mach from our site. Install it and configure it for your machine following the install and config. Guide.


Sorry to be so dumb but where do I find all my configuration settings? Also the install & config guide! Is that in Mach3? As I haven't noticed it!

FAQs / Re: Spindle not working
« on: February 22, 2017, 03:39:23 AM »
I've just purchased a genuine licence, I'll figure out what to do with it & work my way through your other instructions (I wasn't joking when I said I wasn't very computer savvy lol)

FAQs / Re: Spindle not working
« on: February 22, 2017, 03:06:24 AM »
Thanks for your reply Tweakie, to be honest I thought that was the case & had every intention on once the machine was up & running purchasing the licence & then contacting the seller to try & get some of the money back (I had no intentions of permamently using a pirate licence) I was seeing it as a trial period.

Ok moving forwards as I've spent almost a week now trying to set this up, i'll buy an official licence now! do I really have to do a clean install of the OS (I did that just before I started setting up this cnc & had to get a computer guy in to sort it out) the Mach3 was downloaded from the Mach3 website as a lot of the files that I was emailed from China aren't working!
The only files I used from China are the licence, mach3mill xml file & a plugin for the USB driver.

FAQs / Re: Spindle not working
« on: February 21, 2017, 11:38:37 AM »
I've had a different instruction manual sent to me so have been tinkering a bit with the spindle settings but still no joy! attached is the xml file

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