Very new to CNC, Fusion, and Fire Control

Ok, thank you. Hope I get it this time.

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I don’t expect you to have gone this far, but something to keep in mind in the long run.

Once you get enough cutting done, and you’ve dialed in your setup to have different tools for different material types/thickness, along with the appropriate kerf, you should always EXPORT that tool library to have as a back up.

If you’re connected to the internet (and signed on), Fusion will periodically update your cloud and store any and all projects you save.

However, it does not save Tool Libraries which is why you should always have a back up in the event that you wish to design on another computer, or need to reinstall your OS and wipe your data.

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I watched the cad/cam with fusion 360 link that you posted. It is the same that I studied yesterday when I finally got my part loaded upto the point of simulation. I did not find the video in the series that explained Posting. After watching the tutorials once viewing to see what was get an idea of how to do this, I again watched the videos with my laptop in front of me, stopping the video to replay something and continuing the video as I was beginning to understand the sequence. I took notes. I then tried to load a design into Fusion and stuck with it up to the point that I could do the simulation. At that point the tutorials began instructing for systems with Z axis which my system does not have.
Thinking that i had to get my project into Fire Control, I found the “export” selection on the file drop down and tried to export into Fire Control. I followed the link that you had sent for cad/cam and read beyond the z axis to find everything about posting into Fire Control.
So, thank you for pushing me to look further. There is a lot to learn with this system.
I am loaded and ready for my first cut, we’ll see hoe that goes.

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Good Persistence! That trait will serve you well in your endeavor.
Also, keep the mantra “Go Slow to Go Fast!”**

Slow and easy in learning, will help you get to cutting sooner.

** Note: I tell this to all the youngsters. :grinning:

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Awesome to hear!

I wouldn’t mind lending some help via one-on-one as I’m sure many others would as well.

I learn by means of “seeing and doing” and really struggle when it comes to learning by means of words on a screen.

I’m sure I’m not the only one.

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Is that everyone under 70?

Man, great progress!

You’re going to be amazed how fast you can zip through that sequence of sketch, generate tool path, simulate, and post (create g-code) after you get a good handle on this process. The process really flows well once you grasp it.

Did you get your Tool Library started and create a machine setup using the specs for your plasma cutter?

Edit: Most of us create tool setups for various types and thickness of metals. For example, I have tool setups for mild steel in 12-22 gauge thicknesses, with the cut speed and other parameters entered. It really speeds up the Manufacturing step to have those ready.

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It must. It includes OP who is the same age as my younger sister… :older_adult: :rofl: :rofl:

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@ChelanJim

Correction sir, I have no idea how to draw anything in Inkscape; I was just “lucky” and muttled my way through uploading a picture and converting it.

As the saying goes “Even a blind squirrel finds a nut once in a while”

But thanks for the vote of confidence. :+1:

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OK, first I want to thank all of you that have shown your support, it really helps me to stick with it.
Next, the first cuts are arcing on the blue lines, cutting through on the orange lines. Sometimes all the blue lines arced and the last try burned through the first blue line and then only cut through the orange lines.
So I first went to the trusty forum and searched for the problem and pages full of old posts from 2019 to 2022 popped up. Haven’t figured out how to sort for newest posts, good to see that I wasn’t the only person having the problem.
Tomorrow I will try some of the simple fixes to do with electrical issues with cords, placement of equipment (moving the Razorcut 45 off of the tray underneath the plasma table ect.)
Something tells me to look in this direction because the symptoms are not consistent on each try of cutting.
I am grounding direct to the piece that I am cutting and the Razorcut 45 is set to 2T. My setup is new never used, so not worn out or anything like that.
Thank you for your help

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If it’s cutting on the rapids(movement between cuts), the only possible explanation is that your plasma cutter is in 4t.

You want the top light to be lit.

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Nope it is 2T as the third line from the bottom of my post says. I tried it both ways to be sure it wasn’t setup reversed.

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It might be really easy to diagnose with a video. Based on the description I’m not sure what to make of it.

I read that line, but there is no wiring issue that will cause cutting on the rapids. The only thing that will cause it is 4t operation or some issue with the G-code not turning off the torch.

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Ok, but if it were the G-code it should cut the blue lines in the same manner each time I cut the same piece. My first cut was an arc on all of the blue lines and a clean cut on the orange. My 2nd and 3rd cut of the same piece gave different results.on the blue lines. The last try cut through on the blue line to the location of the first slotted hole in my design and then properly cut the rest of the piece on the orange lines.
After I try the fixes suggested on this forum having to do with electronic interference, I am going to try repositioning the start (origin??) in the first slotted 3/8 x 1 inch hole and see if I can fool the machine into cutting a clean piece for me.
I can double check the operation of the 2T setting by disconnecting the controller from the Razorcut and operate the torch manually.
Posts on this forum suggest :

  1. a new cable from the computer to the controller
  2. unplug the laptop charger from the same 4 plex outlet that the controller is plugged into and run on the battery of the laptop
  3. move the Razorcut 45 from contact with the plasma cut table, set it on the floor as far away as the cords allow. It currently sits on a nice, solid shelf that I built under the plasma table.
  4. If none of those work I will try repositioning the start point.
  5. If that does not work or is not able to be done without re-coding, then I will post another design that is not in Fire Control yet, being especially careful to follow every step and see how it cuts a different design.
    I will let you guys know how this goes.
    The cut are sharp and clean, fun to watch it cut, excited to be this close to getting it to work properly.
    Keep the suggestions coming, thank you.

This is not a wiring or electronic interference issue.

I would focus on testing the 2t/4t operation of the plasma cutter. Your plan to test with the hand torch is a good one.

Pull the trigger and release it. If the torch shuts off when you release the trigger, it’s on 2t.

If the torch continues to fire after releasing the trigger, it’s on 4t and will require another pull and release of the trigger to shut it off.

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Yep, I understand that part. I have prior experience with a plasma cutter, but not when it is connected to a computer.
You are right, I do feel like it is a bit of a witch hunt with the electronics stuff. If it were a 4T issue wouldn’t be cutting with the same wrong pattern each time? I do have the ground clamped to the sheet that I am cutting so it shouldn’t be a grounding problem.
I use the .060 shim on the torch height. I could try the .125 spacer or turn down the voltage, wouldn’t think that air pressure would have anything to do with it.

There is a post on the forum that had the same issue as mine, replaced the cord with a different (better) cord from Amazon and the problem was fixed.
All of the threads that I am reading are at least 4 years old. So how many updates have been done in that time to fix any of this, or create more problems.

Lets assume that your machine is definitely in 2t mode, which is probably the case if you don’t have any missed cuts.

Can you open the G code with Notepad and copy and paste the first 20-30 lines in a reply here?

Is it possible that you set up your cut as a machining operation, instead of a plasma cutting operation? I’m not a Fusion user, so maybe someone can chime in and tell us if that is possible in Fusion.

That would explain why the torch is not shutting off on the rapids, since the spindle does not shut off on rapids in a machining operation.

If the torch is not shutting off during the rapids, it would not cut cleanly because it will be traveling at 300 inches per minute.

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I rotated te table so that the cord from the computer to the controller were straight away from each other. I uncoiled the extra torch cable from near the controller and moved the ground cable away from the controller. Ran a dry run, all was clear, pushed the start button and the torch cut just as it is supposed too. I did not try to reset things, instead will purchase a new cord from Best Buy and see if the shielding in a better cord fixes it.
So I cut the brackets needed for my project and will design and load other brackets and cut them tomorrow if all works as it should.
I will let you know the outcome.
Thank you all!

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