Machsupport Forum

General CNC Chat => Share Your GCode => Topic started by: andrewm on May 03, 2011, 02:11:01 PM

Title: Demo Gcode
Post by: andrewm on May 03, 2011, 02:11:01 PM
Assortment of Gcode files that are under 500 lines to test the demo with, Thought it would be a good idea to have them all in one easy to find place.

Thanks to those who made the files.


EDIT - When using any of these files please run a trial of the Gcode, just cutting air, to start with and if necessary use Notepad to edit the Gcode file to change the Feed-Rate or any other settings which may not suit your machine or cutting tool.

Tweakie.
Title: Re: Demo Gcode
Post by: Tweakie.CNC on May 04, 2011, 03:45:46 AM
Great idea Andrew.  ;)

Tweakie.
Title: Re: Demo Gcode
Post by: Zero Cool on May 15, 2011, 06:40:01 PM
Thank you!
Title: Re: Demo Gcode
Post by: andrewm on May 19, 2011, 01:44:50 PM
Thanks. and NP :)

If anyone wants to add files to this either email them to me or post them here. I will reload the folder with them.
Title: Re: Demo Gcode
Post by: Tweakie.CNC on June 02, 2011, 05:57:50 AM
Found this one in my Mach folder - I have no idea of it's origin.

Tweakie.
Title: Re: Demo Gcode
Post by: andrewm on June 02, 2011, 08:33:08 AM
Thanks for sharing, its now part of the folder.

^_^
Title: Re: Demo Gcode
Post by: CNCexplorer on December 27, 2011, 05:19:39 AM
THANK U so much AndrewM for this post by far the best post ever
 specially very helpful for a newbei like me :)
Title: Re: Demo Gcode
Post by: andrewm on January 11, 2012, 11:15:59 AM
Glad I could help ^_^
Title: Re: Demo Gcode
Post by: DHay13 on June 05, 2012, 11:46:29 PM
I use 7-zip to unzip my files. It is free and works great to unzip almost any format.

Thanks for sharing the files. Being new to this, I need some easy stuff to practice with so I don't have to try to create my own code for now....baby steps!!!
Title: Re: Demo Gcode
Post by: Tweakie.CNC on October 12, 2012, 02:35:15 AM
Hi Guys,

Here is a little project that falls within the 500 line limit for the Demo version of Mach3.

I am going back a few years but this is probably the first item I made with my CNC machine after it was built.
The GCode was produced with the free software G-Simple (sadly no longer available).

The cube was made from 1.8mm thick engraving laminate and cut with a 2mm dia. Endmill – the 6 pieces then slotted together and fixed with cyano super glue.

There are 2 versions of ‘Tweakie’s CNC Cube’ and I have included the Gcode for each in the .zip folder in post #1 of this thread.

Tweakie.
Title: Re: Demo Gcode
Post by: pramodkotwal on February 18, 2013, 06:59:13 PM
I am having trouble downloading the files on a Vista desktop.
Please help
Title: Re: Demo Gcode
Post by: Chaoticone on February 18, 2013, 07:09:20 PM
Welcome to the forum pramodkotwal.  What kind of troubles are you having?

Brett
Title: Re: Demo Gcode
Post by: pramodkotwal on February 18, 2013, 07:29:08 PM
When I click on the download tab on the web page, nothing happens.
What should I do ?
Is this a server issue ?
Title: Re: Demo Gcode
Post by: Chaoticone on February 18, 2013, 08:11:24 PM
It's downloading fine here.  You must have some restricitons on your PC that will not let you download.

Brett
Title: Re: Demo Gcode
Post by: jeep534 on February 25, 2013, 10:20:02 AM
not sure if this is under the limit (your mileage may very)     
http://www.cad2gcode.com/cncprojects/id14.html

archie =) =) =)
Title: Re: Demo Gcode
Post by: Chaoticone on February 25, 2013, 10:35:56 AM
Thanks Archie!

Brett
Title: Re: Demo Gcode
Post by: Tweakie.CNC on March 31, 2013, 04:04:58 AM
Bit of an educational project here with more details in this thread http://www.machsupport.com/forum/index.php/topic,24021.0.html

The material I used was 1.5mm thick polycarbonate. I have kept the feed-rate low but you may want to increase this using the FRO slider. The overall size can be scaled, if you wish, by using the X & Y axis scale DRO’s.
This tool-path has been created for use with a 2mm diameter end-mill with the X and Y zero (datum point) centre of the stock and Z zero with the tool touching the stock surface.

Tweakie.
Title: Re: Demo Gcode
Post by: Leighton on April 19, 2014, 03:43:53 AM
Thank you for the demos , I have had my cnc for a week and have been trying to get my head around G code so I can see if it works.
Regards.
Leighton
Title: Re: Demo Gcode
Post by: Tweakie.CNC on January 10, 2017, 01:55:40 AM
Hi Guys,

Over the last weekend, I have added a few more Gcode files to the .zip folder in post #1 of this thread and I will add more Gcode files as they become available.

I have never had any problems running Imperial Unit Gcode programs on my Metric machines and I assume the same applies in reverse, provided the Gcode contains a G20 or G21 ( as appropriate). However, Graham Waterworth has written an excellent and very useful little program that can be used to scale / convert Gcode from Imperial to Metric or Metric to Imperial. This thread refers; http://www.machsupport.com/forum/index.php/topic,2893.0.html

It is usual to have the Gcode origin (X0, Y0) at the bottom left hand corner of the workpiece but for different reasons we may each prefer to have our Gcode origin in a different location. There is an excellent FREE software program available from Scorch Works which will re-calculate Gcode to move the origin to one of many different locations. This software can also be used as a backplotter converting Gcode to a .dxf and also a number of other functions are available. It can be downloaded from here; http://www.scorchworks.com/Gcoderipper/gcoderipper.html

Tweakie.
Title: Re: Demo Gcode
Post by: Tweakie.CNC on January 10, 2017, 02:19:29 AM
This outline engraving of a young colt was downloaded as a FREE silhouette from http://vectorink.com/ (http://vectorink.com/) and the Gcode created with Vectric Aspire. The Gcode file has now been added to the .zip folder.

Tweakie.
Title: Re: Demo Gcode
Post by: Tweakie.CNC on January 11, 2017, 07:07:05 AM
I have added a couple more horse outline engraving Gcode files to the .zip folder also a reworked Chucks Deer V-Carve Gcode (which is just less than the 500 lines).

Tweakie.
Title: Re: Demo Gcode
Post by: rchavez101 on January 13, 2017, 10:01:45 PM
Hello Everyone. After looking at this forum for a while I have decided to join. I am almost done with my home made router CNC. I would like to know about the Gcode files that are available in the first post. I still have the demo mode so I know that I am limited to 500 lines or less. When looking at the free G code in the first post how do I know what material thickness and Z depth that the code calls for. I am wanting to test out my machine with one of these samples. Thanks in advance.
Robert
Title: Re: Demo Gcode
Post by: Tweakie.CNC 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.
Title: Re: Demo Gcode
Post by: rchavez101 on January 14, 2017, 09:02:17 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.


Tweakie,
Thank you so so much for the valuable information!! I am looking forward to this journey.
Title: Re: Demo Gcode
Post by: Bucks 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.

Tweakie.


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!
Title: Re: Demo Gcode
Post by: Bucks on February 25, 2017, 05:57:12 AM
Success at last!  THANKS Andrew for starting this thread & Twinkie for your valued contributions its much appreciated, managed to cut a scorpion at 50% & one at 25% following Twinkies instructions above  :)
Title: Re: Demo Gcode
Post by: Tweakie.CNC on February 25, 2017, 06:22:48 AM
Excellent  ;)

Tweakie.
Title: Re: Demo Gcode
Post by: Tweakie.CNC on April 27, 2017, 04:42:30 AM
This Gcode file of the old Constitution class starship was created as a test for Mach4 laser control using the M62/M63 command set. It has been added to the .zip file in Post#1.
 
It comprises less than 500 lines of Gcode so could be modified (copy & paste in Notepad) to using the Mach3 M11/M10 command set.

Tweakie.
Title: Re: Demo Gcode
Post by: Tweakie.CNC on May 11, 2017, 02:22:47 AM
These little positioning discs are not intended to be gears but because of the symmetrical nature of the teeth they do actually mesh. For anyone who wants to make one I have added the Gcode to the zip folder (disc3.tap). My material thickness is 1.5mm and the cutter diameter is 4mm.

Tweakie.
Title: Re: Demo Gcode
Post by: Tweakie.CNC on May 24, 2017, 05:42:14 AM
This post relates: http://www.machsupport.com/forum/index.php/topic,34973.msg240357.html#msg240357

As my Mach3 laser cutting Gcode for this little device is less than 500 lines I have now included it into the .zip file.

Tweakie.
Title: Re: Demo Gcode
Post by: Tweakie.CNC on June 23, 2017, 08:00:26 AM
The Gcode for the excellent hold-down clamps described in the CNC Projects website http://www.cad2gcode.com/cncprojects/id14.html (http://www.cad2gcode.com/cncprojects/id14.html) and linked by Jeep534 in post #17 has now been added to the Zip file.

Tweakie.
Title: Re: Demo Gcode
Post by: davulkai on August 26, 2017, 09:23:39 AM
Really nice thanks a lote
Title: Re: Demo Gcode
Post by: diyhands on February 04, 2018, 02:49:55 PM
why does everything in mach3 seem to be so small...... I DL'ed tweakies scorpion .TAP and it loaded so small?? It does this for everything I load and run.... Is it because im still DEMO version or something? I did initial setup selecting native units IN.

DIY
Title: Re: Demo Gcode
Post by: Tweakie.CNC on February 05, 2018, 01:43:34 AM
Hi DIY,

It's nothing to do with using Mach3 in DEMO mode.

Scorpion.tap was prepared in metric (mm) units and the code contains the appropriate G21 command so it should have a dimension approx. 206mm x 235mm.

Could you please try the Axis Calibration feature (Settings page) and follow the on-screen instructions to check the calibration of your machine.

Tweakie.