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IndustryArena Forum > CAM Software > Uncategorised CAM Discussion > GrblGru: Free CAM and 3D-Simulation for mills and lathes
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  1. #81
    Join Date
    Sep 2005
    Posts
    24

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    Quote Originally Posted by GrblGru View Post
    @mactec54
    Thanks for your advice. This seems to be a good idea for a quick workaround.
    But I think there are a lot of other things to consider.
    For example, the dimensions of the workpieces should already match the dimensions of the machine.
    Also the current display should be displayed in inches.

    @vicstransam
    There is a new beta version V3.25.8 available at https://goo.gl/7BGkkO
    I have changed the formatting of the input values so that now several decimal places can be used.
    Hopefully this will help a little, until I can offer a better solution.


    Thank you very much. I will try it out.
    PI R ROUND

  2. #82
    Join Date
    Nov 2016
    Posts
    7

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    Greetings GrblGru,

    Per my posting on your YouTube channel I've converted my Son's Unimat lathe using an UNO and GRBL 1.1 and I'm using your excellent software. Because the X & Y axis labeling are non-traditional it works very well if I generate the g-code in your program and swap the stepper motor cables on my controller. (X to Y and Z to X)

    I've watched most of the videos but I'm having difficulty understanding how to set the Y axis origin in the software relative to the actual part in the lathe. I do understand how to set the origin in the software and that it will calculate the distance from that point to the center of the axis. (Y-xx.xxx) Can you please explain how I then set the tool in the lathe to the physical part I'm about to cut to match the origin in the software ?

    Thanks !

    Jay

  3. #83
    Join Date
    May 2016
    Posts
    329

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    I am very happy that you could use GrblGru for your lathe.
    I also hope that I will finally get to rename the axis designations soon.

    To your question. Here's what I do on my machine:
    - Turning of a cylinder with any diameter
    - Measurement of the created diameter with the caliper gauge
    - Enter the radius of the diameter in the Y-axis from the program
    - Press the' Origin' key to set the starting diameter.

    Please let me know if you have any questions or if sth. doesn't work as it should.
    In this case you can also send me a PM with an email address.

  4. #84
    Join Date
    Sep 2005
    Posts
    24

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    I have been playing with the program a little bit and added a macro to the list as "Home" but the simulator model "Shapeoko 2" doesn't execute the code G28 or G91 G28 Z0 or G91 G28 X0 Y0 Z0. I am only using the program for simulation. I was hoping it would return to its "Home" position. Also when jogging to a spot on the table to set the part origin, it no longer can travel to "HOME" and negative X and Y limits can be exceeded on the simulation.
    I am impressed with the level of your programming. Thanks again.
    PI R ROUND

  5. #85
    Join Date
    May 2016
    Posts
    329

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    In simulation mode, you can enter the home position in the Machine Manager. If you then press the Home button, the machine will move to the home position.
    In order to prevent the axes from leaving their travel range, you can select the option "Check limits" in the setting.

    Attached Thumbnails Attached Thumbnails Image 1.jpg  

  6. #86
    Join Date
    Nov 2016
    Posts
    7

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    Quote Originally Posted by GrblGru View Post
    I am very happy that you could use GrblGru for your lathe.
    I also hope that I will finally get to rename the axis designations soon.

    To your question. Here's what I do on my machine:
    - Turning of a cylinder with any diameter
    - Measurement of the created diameter with the caliper gauge
    - Enter the radius of the diameter in the Y-axis from the program
    - Press the' Origin' key to set the starting diameter.

    Please let me know if you have any questions or if sth. doesn't work as it should.
    In this case you can also send me a PM with an email address.
    Thank you for the explanation GrblGru. That makes perfect sense.

    I'm doing my programming in simulation mode on my laptop in the comfort of my home and then saving the g-code and copying it to the computer attached to the lathe down in the less comfortable basement.

    I now understand that I can input a radius into the program in simulation mode and then cut my blank to that diameter on the lathe and set that to my Y axis origin. Very easy and straight-forward !

    I'd like to support your good work. Do you accept donations ?

    Jay

  7. #87
    Join Date
    May 2016
    Posts
    329

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    Thank you, that's very kind of you. But I don't have a website yet.
    Once I have one and you're still satisfied... we will find a way.

  8. #88
    Join Date
    May 2016
    Posts
    329

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    Release notes V3.26

    Easter is just around the corner,
    and after I added the virtual 3D model of an EggBot to the program some time ago, I now want to provide a real model.
    It was important for me to use the normal GRBL with 3 motors. The well-known variant with the servo for pen lifting was therefore eliminated.

    Another important point was to keep costs as low as possible. The practical execution is certainly not a mechanical engineering masterpiece.
    Expectations of speed and precision must therefore not be set too high. It's more about the principle.
    However, the model is hopefully still suitable for teaching important knowledge of CNC technology in a playful way.
    (And you can also paint eggs with it)

    Reproduction of the model is not only possible with GrblGru, but with any other control system.
    If necessary, you can also saw out the plywood parts with a fretsaw.

    The actual operation of the model is currently only tailored to GrblGru.
    But maybe someone can change the construction so that a servo takes over the pen lift again.
    This would also make it possible to control the whole thing with InkScape.
    Suggestions for improvement are welcome.

    Here are the costs for material and software:
    ----------------------------------------------------
    Arduino UNO + CNC Shield 12 Euro
    Stepper motors 3 x 2 Euro 6 Euro
    Plywood 4mm 2 Euro
    GRBL Software 0 Euro
    GrblGru Software 0 Euro
    -----------------------------------------

    Have fun with GrblGru



    Attached Files Attached Files

  9. #89
    Join Date
    Nov 2016
    Posts
    7

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    Hi GrblGru,

    I'm making good progress controlling the Unimat with your software.

    Hoping you can help me with a parameter tool issue. I suspect it's something I'm neglecting to do but haven't figured it out yet.

    I changed the angles of the parameter tool in the 2D view to match what I have setup on the lathe. It displays correctly in the 2D and 3D STL views but it doesn't appear to be calculating the new shape correctly. (Mostly in the X axis.) I restarted the software to make sure it was reading the new shape but that didn't resolve it. I'm running your most recent Beta version 3.25.8.

    I've attached a picture showing the simulation.


    Also, I attempted to create a copy of the latheprofile.dat file so I could modify it to match my tool but it doesn't allow me to save anything in the "C:\Program Files (x86)\toe\GrblGru" directory.

    Any suggestions would be appreciated.

    Thanks !

    Jay
    Attached Thumbnails Attached Thumbnails Parameter Tool Calculation.jpg  

  10. #90
    Join Date
    May 2016
    Posts
    329

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    @Jay_Perez

    I have sent you a private message with my email address. This makes data exchange a little bit easier.

  11. #91
    Join Date
    Sep 2005
    Posts
    24

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    Thank you for the reply. I tried again testing the limits of travel and it worked as normal except if you use the corner buttons to move both axes, it will still over travel on x and y even if the limits are set in configuration file correctly. This is on version 3.25.8




    Quote Originally Posted by GrblGru View Post
    In simulation mode, you can enter the home position in the Machine Manager. If you then press the Home button, the machine will move to the home position.
    In order to prevent the axes from leaving their travel range, you can select the option "Check limits" in the setting.

    PI R ROUND

  12. #92
    Join Date
    May 2016
    Posts
    329

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    @vicstransam
    You're right. That's another mistake. Will fix it in the next version. Thanks for your feedback.

  13. #93
    Join Date
    Sep 2005
    Posts
    24

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    You are welcome. I eagerly await the next version. Thanks again.
    PI R ROUND

  14. #94
    Join Date
    Apr 2014
    Posts
    4

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    HI,
    GREAT PIECE OF SOFTWARE BUT UNFORTUNATELY NOT ABE TO LOAD MY 3D STL FILES OF MY MACHINE ON YOUR SOFTWARE ,GETTING A ERROR,CAN YOU HELP ME INSTALL IT. I AM ON WINDOWS 7 32 BIT LAP
    Senthiru

  15. #95
    Join Date
    May 2016
    Posts
    329

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    I've sent you an email.

  16. #96
    Join Date
    Mar 2018
    Posts
    6

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    Hi,Could not find a minimum systemI am new to cnc and am just at the end of first machine build. I have been experimenting with your programme which is great. My only problem is that the g code creator (nc) button does not function on my machine. configuration but I am running on a windows 7 32bit laptop. Does GrblGru require a 64bit machine?All the best

  17. #97
    Join Date
    Oct 2014
    Posts
    8

    Post Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    Using Fusion360 with postprocessor (https://github.com/Strooom/GRBL-Post-Processor/wiki) works well if i use other grbl uploaders but not with your Uploader, is there a way you can fix this? Or have i to use a different postprozessor in Fusion?

  18. #98
    Join Date
    May 2016
    Posts
    329

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    @Daggersuk
    I am not aware that GG does not run under Win32. If I understand you correctly, the program can be started without errors.
    Can you explain exactly what happens when you press the button? Some screenshots would be very helpful.


    @jpascher
    Which GRBL version do you use ?
    There are many great features in V1.1 and the communication via USB is different than in V0.9.
    That's why GrblGru no longer supports GRBL V0.9. It needs V1.1
    If you are already using V1.1, it looks like an error in my program.
    Can you send me a sample file so I can see exactly what it is ?
    Which controller do you use ?

  19. #99
    Join Date
    Mar 2018
    Posts
    6

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    Thanks for the reply.I am using a MKS DLC V1.0 controller board, grbl V1.1 I am away from workshop until Thursday but the details that I can recall are as follows:-Program loads and starts without errors. I can load dxf,stl and gcodes without errors. I have loaded a sample gcode nc file and run on both software simulation and the actual machine. I can create a STL file from a dxf but the create N.C button remains greyed out. The only other problem I have had so far found is that the Z axis is reversed. I have also created a new machine and run simulations using this without problems.

  20. #100
    Join Date
    Oct 2014
    Posts
    8

    Re: GrblGru: Free CAM and 3D-Simulation for mills and lathes

    Quote Originally Posted by GrblGru View Post
    @Daggersuk
    I am not aware that GG does not run under Win32. If I understand you correctly, the program can be started without errors.
    Can you explain exactly what happens when you press the button? Some screenshots would be very helpful.


    @jpascher
    Which GRBL version do you use ?
    There are many great features in V1.1 and the communication via USB is different than in V0.9.
    That's why GrblGru no longer supports GRBL V0.9. It needs V1.1
    If you are already using V1.1, it looks like an error in my program.
    Can you send me a sample file so I can see exactly what it is ?
    Which controller do you use ?
    Thanks for reply!
    i use V1.1 on NANO
    attached stimmstock.nc -renamed to stimmstock.txt
    Within Fusion360 a post processor is installed form: https://github.com/Strooom/GRBL-Post-Processor/wiki

    Best regards, Johann

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