<p>I believe that everything after the "*" is a comment.  From the random variation, I speculate that the comments for Octoprint are a check code.  For other host programs, it is a sequence number.</p>

<p>@oscar linked to a previous answer in a comment which shows that it is a checksum.  I will need to check the next time I run Repetier Host, but that seemed to be a sequence number.  Please see Oscar's comment (and upvote it).</p>

CC BY-SA 4.0
2019-09-22T21:28:24.150Z
Please look into [What is the purpose of asterix (\*) in Gcode?](https://3dprinting.stackexchange.com/questions/3118/what-is-the-purpose-of-asterix-in-gcode) to read about the asterisk character in a G-code.
0scar
CC BY-SA 4.0
2019-09-22T21:05:12.507Z
2019-09-23T02:34:53.150Z
2019-09-23T02:34:53.150Z
cmm
<p>The G-code sent from Octopi to my printer gets multiplied at the end of every row.
The corresponding code out of Simplify3D do not have that multiplication.</p>

<p>This results in a always Max speed print.</p>

<p>1 month ago all worked perfect.</p>

<p>Have anyone seen this problem before? How to solve?</p>

<p><a href="https://i.sstatic.net/93rjl.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/93rjl.png" alt="enter image description here"></a></p>

CC BY-SA 4.0
2019-09-22T14:12:09.427Z
Welcome to 3dPrinting.SE! According to [this answer](https://3dprinting.stackexchange.com/q/3118/11242), the asterisks at the end followed by a number is just a checksum, used to ensure what's going out is what's coming in ... this should have absolutely no affect on how your printer behaves.
Pᴀᴜʟsᴛᴇʀ2
CC BY-SA 4.0
2019-09-22T16:40:29.240Z
Thank you @PAULSTER2. And I though i searched the web :). Then I'll have to find my problem with the printer not reduceding the speed at for example first layer.
Ljung
<g-code>
G-code commands gets multiplied by random number
Ljung
# G-code commands gets multiplied by random number

(Asked by: username_0 on 2019-09-22)

The G-code sent from Octopi to my printer gets multiplied at the end of every row.
The corresponding code out of Simplify3D do not have that multiplication.

This results in a always Max speed print.

1 month ago all worked perfect.

Have anyone seen this problem before? How to solve?

[![enter image description here](https://i.sstatic.net/93rjl.png)](https://i.sstatic.net/93rjl.png)

**Tags:** g-code

> **Comments:**
> **username_1**: Welcome to 3dPrinting.SE! According to [this answer](https://3dprinting.stackexchange.com/q/3118/11242), the asterisks at the end followed by a number is just a checksum, used to ensure what's going out is what's coming in ... this should have absolutely no affect on how your printer behaves.  
> **username_0**: Thank you @PAULSTER2. And I though i searched the web :). Then I'll have to find my problem with the printer not reduceding the speed at for example first layer.  

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## 1 answers

### Answer by username_2 on 2019-09-22. Score: 0

I believe that everything after the "\*" is a comment. From the random variation, I speculate that the comments for Octoprint are a check code. For other host programs, it is a sequence number.

@oscar linked to a previous answer in a comment which shows that it is a checksum. I will need to check the next time I run Repetier Host, but that seemed to be a sequence number. Please see Oscar's comment (and upvote it).

> **Comments:**
> **username_3**: Please look into [What is the purpose of asterix (\*) in Gcode?](https://3dprinting.stackexchange.com/questions/3118/what-is-the-purpose-of-asterix-in-gcode) to read about the asterisk character in a G-code.  

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