Fusion G1 only out put.

[dgpcontracting]

Hi Guys. I have a CNC Mill using Masso controller. The G Code is interpolating spiral in G1 and my mill is hesitating and jerking. There seems to be no option to force it to use G2/G3 code. It seems I have pay for Cam software now too. Surely there is a way around this. 

[seth.madore]

I took a look at the Masso post, it most certainly supports arcs:

(2D CONTOUR1)
N30 M5
N35 T1 M6
N40 S3400 M3
N45 G54
N50 G0 X0.1408 Y-0.0156
N55 Z0.1
N60 M8
N65 G1 Z-0.1 F100.
N70 X0.1564 F30.
N75 G3 X0.172 Y0. I0. J0.0156
N80 X-0.172 I-0.172 J0.
N85 X0.172 I0.172 J0.
N90 X0.1564 Y0.0156 I-0.0156 J0.
N95 G1 X0.1408
N100 G0 Z0.1
N105 X1.1879 Y-0.0136
N110 G1 Z-0.1 F100.
N115 X1.1723 Y-0.0132 F30.
N120 G3 X1.1563 Y-0.0284 I-0.0004 J-0.0156
N125 G2 X-1.1563 Y0.0284 I-1.1563 J0.0284
N130 X1.1563 Y-0.0284 I1.1563 J-0.0284
N135 G3 X1.1715 Y-0.0444 I0.0156 J-0.0004
N140 G1 X1.1871 Y-0.0447
N145 G0 Z0.1

It's possible a model issue, could you share your file?

File > Export > Save to local folder, return to thread and attach the .f3d file in your reply

[dgpcontracting]

Hi Seth. I sure hope so. Have a look at that. I'm wanting to machine the concave combustion chamber. This is some thing I have done many times but for whatever reason this time I'm having great difficulty. I appreciate any help you can offer

[seth.madore]

Please share a file that has toolpaths applied, so I know what you've tried 🙂

[dgpcontracting]

Sorry mate fist time I have done this how do I share that?

[seth.madore]

You say that you've run some code on the machine and it turned out poorly. So, I assume that you've programmed it in Fusion, at least to some extent. Open that file (the one with toolpaths applied) in Fusion, click on:

File > Export > Save to local folder, return to thread and attach the .f3d file in your reply

[dgpcontracting]

How about that?

[seth.madore]

So, here's your existing toolpath. Take note of all those black dots; those are point-to-point moves:

On the "Passes" tab, down at the bottom, there's an option called "Smoothing". Let's turn that on and see what it can manage to do to smooth out the moves (this inserts arc moves where possible):

 

Notice that slow trail of black dots? Those are your linking moves to each consecutive step. Smoothing doesn't apply to those. If you want/need a finer finish than that, consider changing to zero "Max Stay Down" (on the linking tab):

 

 

[dgpcontracting]

Yes but if you look at the tool path above that's the one I was struggling with and I had used smoothing. No doubt this one would have needed it also. I'd be interested to see if you can fix that one for me.

[seth.madore]

Ah, you didn't mention which toolpath was giving you an issue 🙂

Smoothing has no impact on Ramp, Spiral and a few other toolpaths, as it's a 3d arc. I'd point you back to 3D Contour with the proper settings:

Note; that won't get to the very bottom of the chamber, so you'd have to use something like Spiral or Scallop to remove the remnants.

I forgot to ask; what is your machine and post processor?

[dgpcontracting]

Its a very modified Syil X4 and Masso controller. Ok then I'll give this a try. Id say looking at the result you show here it will be fine. As I have done this several times in the past I must have previously been using a adaptive contour. It just makes more sense to use the spiral. Thanks for your super fast response. I have always just battled away with these problems myself but I think I might just start asking for help a bit more. It has wasted my weekend this problem. 

Regards

Darryll

[seth.madore]

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@dgpcontracting wrote:

Thanks for your super fast response. I have always just battled away with these problems myself but I think I might just start asking for help a bit more. It has wasted my weekend this problem. 

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