topic Re: M Code problem in Fusion Manufacture Forum

M Code problem

Anonymous — Sat, 09 Jun 2018 19:20:13 GMT

Hi, I'm using Fusion 360 as a student and been doing some CAM. When I put my file as a ".nc" I have always have this M26 code that is generated and I do not understand what it is for and I wondered how to remove or disable if possible.

Re: M Code problem

zwelsh91 — Sat, 09 Jun 2018 20:58:24 GMT

To help the community better assist with your question, Can you please share your file and what Post Processor you are using to generate machine code?

Re: M Code problem

Anonymous — Sat, 09 Jun 2018 21:13:13 GMT

Here is my post processor (in fusion 360) and here is the “.nc” file;

Re: M Code problem

randyT9V9C — Sun, 10 Jun 2018 03:59:43 GMT

Your attachments didn't come through.

Is it generating an error on your control? You may need to comment it out of your post processor. Remember the generic post processors sometimes need to be edited to taste.

M26 will vary in purpose depending on the machine/control. You'll need to look it up in your manual. I have one machine that uses M26 to reset the machine zero, another that does clear point tool change, and on my lathe it retracts the tail stock. And I have machines that wouldn't know what to do with it. 😉

Re: M Code problem

Anonymous — Sun, 10 Jun 2018 22:27:41 GMT

It is not a error that M26, I just want to know what activates it and how to disable it in Fusion so it doesn’t generate the M26
Thank you

Re: M Code problem

randyT9V9C — Mon, 11 Jun 2018 02:29:34 GMT

What post processor are you using?

Re: M Code problem

Anonymous — Mon, 11 Jun 2018 11:23:46 GMT

I’m using the one called “Brackets” in Fusion 360

Re: M Code problem

randyT9V9C — Mon, 11 Jun 2018 13:18:39 GMT

Brackets is the editor that your generated g-code is viewed in following post processing. When you post process, what vendor and post are you selecting from the post configuration dialog? What model of machine do you have?

Re: M Code problem

Anonymous — Mon, 11 Jun 2018 20:36:13 GMT

There’s a place to enter what machine you have? In my case it’s a cnc router and I don’t really go into details with what vendor I put in, but does it make a difference?

Re: M Code problem

randyT9V9C — Tue, 12 Jun 2018 03:47:11 GMT

You need to select a post processor that best matches your machine/controller. Every machine is a little different. G-code generated for one machine may have un-intended results on another. Post processors are very much machine/control specific.

What cnc machine are you running?

Re: M Code problem

Anonymous — Tue, 12 Jun 2018 11:43:13 GMT

My machine is a cnc router for milling, it’s called CNC3018 but it’s not made by any company and I don’t know what king of gcode my machine understands

Re: M Code problem

randyT9V9C — Tue, 12 Jun 2018 13:17:25 GMT

I believe the CNC3018 is GRBL based. Try using the GRBL post, it is in the list of pre-installed posts.

Alternatively you can download the latest version here:

https://cam.autodesk.com/hsmposts

Looking at the sample code it does not have the M26 included that was causing you issues.

Re: M Code problem

Anonymous — Tue, 12 Jun 2018 19:49:13 GMT

I see, I didn’t know what GRBL meant. Now it more sens, thank you very much, I’ll try this change soon and let you know,
Thanks again