Page 5 of 32

Re: GrblGru = Free 3D-Simulation for ShapeOko2

Posted: Tue Feb 24, 2015 8:55 pm
by GrblGru
You are right (once more again). It's B.
You can choose the position and also the normal-direction in the settings.
This allows to create A or B.

Re: GrblGru = Free 3D-Simulation for ShapeOko2

Posted: Sat Mar 14, 2015 6:42 pm
by GrblGru
Hi together,

for a change, my new version V1.22 is dedicated to all lathe-friends. It use the import function (DXF, SVG or NC) to describe a workpiece. On this base and a few inputs for speed, infeed etc. GrblGru create G-code for a roughing and a finishing pass.

I try to describe details in the updated manual. ... l.pdf?dl=0

If you like to watch the video: 'Creating a bell' in GrblGru: ... e.avi?dl=0

In this context I like to remember, that it's possible to add your own CAD model to GrblGru. So, if you have an old lathe in your dark cellar, don't hesitate to bring it back to life. In case of any questions or problems, please contact me.

Have fun with GrblGru
Bell.jpg (410.16 KiB) Viewed 6161 times

Re: GrblGru = Free 3D-Simulation for ShapeOko2

Posted: Sun Mar 15, 2015 12:05 am
by Ing Chao
:D :D :D
Thank you, thank you thank you!
I've been waiting for like 3 years for someone to make a GRBL lathe app!
You're my hero!

Re: GrblGru = Free 3D-Simulation for ShapeOko2

Posted: Sun Mar 15, 2015 1:01 pm
by GrblGru
Thank you very much Ing Chao.
I am pleased that you can use my little program. Suggestions for improvement are welcome.

Re: GrblGru = Free 3D-Simulation for ShapeOko2

Posted: Wed Mar 25, 2015 3:14 pm
by sdumond
I am trying to use your grblgru on my tinyg and it shows com 3 like tgfx and chilipepr uses but it won't hook on. it says tinyg not found. It will connect to tgfx and chilipeppr, but not grblgru. Any ideas why?

Re: GrblGru = Free 3D-Simulation for ShapeOko2

Posted: Wed Mar 25, 2015 5:21 pm
by GrblGru
I assume that you have downloaded the GrblGru Version 1.23 from the forum 'tinyG'.
Here is the program-running to open the connection:

1. First I try to open the SIO ( in your case COM3 )
If I get no success I send the message 'Error: Open Sio @ Com xxx' and break.

2. Then I send '$id' to the Sio and send the message 'Waiting for TinyG Identification'.
After waiting 1000ms I'm looking for the received text from TinyG.
If I found the text 'tinyg' I send the message 'TinyG ready @ com xxx'.
Otherwise I send 'TinyG not found @ com xxx'.

Please compare your / my settings. I have marked the important one in red.
Be sure that you closed tgfx and ChilePepr before you start GrblGru. Otherwise they keep the COM port.
Did you receive the message ''Waiting for TinyG Identification' ?

MainPage.png (49.07 KiB) Viewed 6029 times
settings.png (9.96 KiB) Viewed 6029 times

Re: GrblGru = Free 3D-Simulation for ShapeOko2

Posted: Sun Mar 29, 2015 2:50 am
by sdumond
I have done all that to no avail. It is the latest version I have. I haven't got a clue why it won't connect.

Re: GrblGru = Free 3D-Simulation for ShapeOko2

Posted: Sun Mar 29, 2015 11:33 am
by GrblGru
I'm sure we will find the reason, but I need some more information.

1. You told me the other programs find the TinyG at Com3. Can you choose this in the GrblGru combo box 'Port' ?
If not, press the little button with the '?' on the right side of the Port-combo box. This will cause GrblGru to
write all available ports into the combo box. Can you tell me which Com ports are shown ?
If it does not work at the first time, please try it once more.

2. If point 1 is ok (Com3 is selected), open the next combo box 'Controller'. You will see following list:
Choose the item 'TinyG'. At this moment GrblGru will try to connect with the selected Com port. The message
'Waiting for TinG identification ...' is shown in the left window under the grafik window.

3. Do you see this message ??? ('Waiting for TinG identification ...')

4. After 1 sec GrblGru will show the connection result in the left window. Do you see any answer from TinyG in the right window ? Please send me an screenshot from this situation.

Please have once more again a detail look to your settings. They are very important.
[ex] must be 0 and [baud] must be 5.

For example, if I change the parameter [ex] 'enable flow control' to 2 = (RTS/CTS) then I get
the same error you told me.

To change the TinyG parameter please note the attached pdf-file.

Re: GrblGru = Free 3D-Simulation for ShapeOko2

Posted: Sat Apr 11, 2015 2:06 pm
by GrblGru
Find the actual version V1.28 in the attachment.

What's changed since V1.22 ?

- The pretty X-Carve machine is (virtual) available
- GrblGru now is able to control the TinyG
- You can enter your data with imperial unit
- The 3D grafik is (hopefully) a little bit improved (edges are marked)
- You can enlarge the machine model in x and y direction, if you have an 'big size' machine.

If you have already installed a older GrblGru version, please execute the menu item 'EXTRAS - Original factory settings' once. This will refresh the 3D-models.

Additional info: ... l.pdf?dl=0

Have fun with GrblGru

Re: GrblGru = Free 3D-Simulation for ShapeOko2

Posted: Sat May 02, 2015 7:17 pm
by GrblGru
I'm back from vacation and it's time for a new GrblGru version. What's new or changed ?

- First try of calculating the estimated time for a milling job.(can still be improved)
- New function to save STL objects
- New function to save the imported data as DXF. (with the feature to repair broken paths)
- New funtion to create 3D-STL objects from 2D imported data (dxf, svg and nc) with the embedded OpenSCAD
It's possible now to extrude (linear and rotate) a 2D object. For demonstration see the little video.

Have fun with GrblGru