<p>Make sure you are connecting to the correct port. Make sure you have installed any drivers required for your controller. Make sure GRBL is properly flashed on your controller. As a last resort try removing all previous UGS settings (see property Files) and reinstall.</p>

CC BY-SA 4.0
2022-12-20T16:39:06.707Z
I won't downvote this answer, but it's not particularly useful in this case. The posted image indicates communication is successful.
fred_dot_u
CC BY-SA 4.0
2022-12-20T06:07:09.440Z
2022-12-20T06:07:09.440Z
James Walter
<p>The g-code generated by the linked site presents in a text reader as a series of G01 codes, which are strictly movement codes. As expected, the circle was created as a series of fairly short straight line segments.</p>
<p>There are no other g-codes of note in the created file. In the case of a 2D printer, one would expect to see a g-code for pen down/pen up, while in a 3D printer, one expects to see extrusion commands.</p>
<p>The first two or three g-code viewers presented zero graphic results. The last one (because, why continue?) is <a href="https://ncviewer.com/" rel="nofollow noreferrer">NC Viewer</a> and was able to properly display a circle. Images from linked site, using OP linked site to code 100 mm circle:</p>
<p><a href="https://i.sstatic.net/bYh57.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/bYh57.png" alt="G-code for 100 mm circle" /></a></p>
<p>I added in a &quot;pen-down&quot; g-code, M3 S50 to the code and the NC Viewer site also added a pen!</p>
<p><a href="https://i.sstatic.net/5nsRS.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/5nsRS.png" alt="100 mm circle with pen" /></a></p>
<p>This would indicate that your code is good/operational/functional, but lacks additional commands to create something useful in the program on your side. Consider to examine the g-code that presents an image in your software. Research the g-codes to determine the function. For example, I did not have a pen-down g-code command memorized, but used a search engine to find &quot;g-code pen down&quot; nearly instantly. Directly related, the M09 g-code in the created file is one I did not recognize. A search presented the answer that it is a &quot;coolant off&quot; command. An unusual command to see in a generic g-code creator!</p>

CC BY-SA 4.0
2022-12-20T16:38:03.057Z
2022-12-20T16:38:03.057Z
fred_dot_u
<p>Referring to a circle shape G-code online generator for my 2D printer at <a href="https://cnc-apps.com/en/app/circle" rel="nofollow noreferrer">here</a>, in which I created a 100 mm circle. I downloaded the G-code from the website and try to open it with UGS plotter but it is not showing any circle in that software.</p>
<p>How can I solve this issue? Pardon me, I only started CNC 2 days ago and I have jogged my 2D printer I built and it works well, so now as a beginner task, I want to draw a circle.</p>
<p>If anyone has experience with G-code, feel free to share it with me. I appreciate it :)</p>
<p><a href="https://i.sstatic.net/xfnfS.png" rel="nofollow noreferrer" title="Screenshot of online G-code generator settings"><img src="https://i.sstatic.net/xfnfS.png" alt="Screenshot of online G-code generator settings" title="Screenshot of online G-code generator settings" /></a></p>
<p><a href="https://i.sstatic.net/sfcu6.png" rel="nofollow noreferrer" title="Screenshot of UGS software with no G-code shown"><img src="https://i.sstatic.net/sfcu6.png" alt="Screenshot of UGS software with no G-code shown" title="Screenshot of UGS software with no G-code shown" /></a></p>

CC BY-SA 4.0
2022-12-20T09:06:10.423Z
Can you share your GCODE file?
kosteklvp
<print-quality><g-code><diy-3d-printer><print-material><printer-building>
Fail to upload G-code with UGS Plotter Software
jessica smith
# Fail to upload G-code with UGS Plotter Software

(Asked by: username_0 on 2022-12-20)

Referring to a circle shape G-code online generator for my 2D printer at [here](https://cnc-apps.com/en/app/circle), in which I created a 100 mm circle. I downloaded the G-code from the website and try to open it with UGS plotter but it is not showing any circle in that software.

How can I solve this issue? Pardon me, I only started CNC 2 days ago and I have jogged my 2D printer I built and it works well, so now as a beginner task, I want to draw a circle.

If anyone has experience with G-code, feel free to share it with me. I appreciate it :)

[![Screenshot of online G-code generator settings](https://i.sstatic.net/xfnfS.png "Screenshot of online G-code generator settings")](https://i.sstatic.net/xfnfS.png "Screenshot of online G-code generator settings")

[![Screenshot of UGS software with no G-code shown](https://i.sstatic.net/sfcu6.png "Screenshot of UGS software with no G-code shown")](https://i.sstatic.net/sfcu6.png "Screenshot of UGS software with no G-code shown")

**Tags:** print-quality, g-code, diy-3d-printer, print-material, printer-building

> **Comments:**
> **username_1**: Can you share your GCODE file?  

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## 2 answers

### Answer by username_3 on 2022-12-20. Score: 1

The g-code generated by the linked site presents in a text reader as a series of G01 codes, which are strictly movement codes. As expected, the circle was created as a series of fairly short straight line segments.

There are no other g-codes of note in the created file. In the case of a 2D printer, one would expect to see a g-code for pen down/pen up, while in a 3D printer, one expects to see extrusion commands.

The first two or three g-code viewers presented zero graphic results. The last one (because, why continue?) is [NC Viewer](https://ncviewer.com/) and was able to properly display a circle. Images from linked site, using OP linked site to code 100 mm circle:

[![G-code for 100 mm circle](https://i.sstatic.net/bYh57.png)](https://i.sstatic.net/bYh57.png)

I added in a "pen-down" g-code, M3 S50 to the code and the NC Viewer site also added a pen!

[![100 mm circle with pen](https://i.sstatic.net/5nsRS.png)](https://i.sstatic.net/5nsRS.png)

This would indicate that your code is good/operational/functional, but lacks additional commands to create something useful in the program on your side. Consider to examine the g-code that presents an image in your software. Research the g-codes to determine the function. For example, I did not have a pen-down g-code command memorized, but used a search engine to find "g-code pen down" nearly instantly. Directly related, the M09 g-code in the created file is one I did not recognize. A search presented the answer that it is a "coolant off" command. An unusual command to see in a generic g-code creator!


---

### Answer by username_2 on 2022-12-20. Score: 0

Make sure you are connecting to the correct port. Make sure you have installed any drivers required for your controller. Make sure GRBL is properly flashed on your controller. As a last resort try removing all previous UGS settings (see property Files) and reinstall.

> **Comments:**
> **username_3**: I won't downvote this answer, but it's not particularly useful in this case. The posted image indicates communication is successful.  

---

