Arc output- not

[alphonso]

One of the guys is using fusion and it is driving him nuts.

Simple radius around outside corner. Insists on outputting thousands of tiny linear moves instead of an arc move. Also wants to output tiny linear moves in all 3 axi as tool feeds down to the next level.

What is fucked up in the post?

 

[Mud]

I'd bet that's a setting in the CAM, not the post. But I can't tell you which setting.
Is the coordinate system oriented correctly to the part and intended toolpaths?
I discovered there's a setting for making vertical leadins that defaults to arcs, and it creates a ton of linear moves when the arc is not on the active plane like G17, I turn those off except for finishing floors of pockets. The setting is in the links menu for 2d contours and pockets. I'm thinking there's something like that happening. Fusion by default likes to make lots of code until you turn the right stuff off.

Something to try is to make the contour a sketch on an x-y plane instead of following the solid - spitballing here. The solid might have a geometry issue.

 

[DavidScott]

Smoothing maybe?

 

[jz79]

smoothing will help to reduce the "million tiny moves" code size, but it will not start to output arcs instead of the tiny straight moves, the issue is as Mud described it, I have no experience with other CAM software apart from Fusion, but my impression about it is that they tried to make it "universal", so default settings result in a code that sort of works on basically any machine, newer generation machines will have little problems with it, but older ones, with limited memory and look ahead, will struggle unless you tweak the settings so it generates 500 lines instead of 15000

I'll usually solve this by doing what Mud described, turn off vertical lead in radius everywhere where it isn't strictly necessary, and 8/10 times it will solve the million tiny moves issue with 2d toolpaths, but Fusion will still do what it wants with adaptive toolpaths and 3d, and quite often some settings will just not do what they are supposed to do, I accept it as an added price to the 450$/year subscription, we're just beta testers for them after all...

at least now there is an option to delay updates for a while, so they KNOW that their constant updating is a huge nuisance for most

and I don't think post (in Fusion at least, maybe it is different for other CAMs) is meant to deal with these sort of issues

 

[Freedommachine]

One of the guys is using fusion

There's your problem. Have him switch to mastercam

 

[mach ramsey mn]

Doesn’t Fusion 360 offer any tech support, this seems like a simple or common question?

 

[Mud]

Doesn’t Fusion 360 offer any tech support, this seems like a simple or common question?

There's lots of it, all online. The trick is wading through it to find what you need, or finding the right place to ask the right question.
BTW, there's a Professonal Fusion Cam user group on FB that's been pretty useful for me, those guys are not designing fidget spinners to 3D print.

 

[mach ramsey mn]

Ah, the “intuitive” help menu. Me thinks you get what you pay for…

 

[Freedommachine]

There's lots of it, all online. The trick is wading through it to find what you need, or finding the right place to ask the right question.
BTW, there's a Professonal Fusion Cam user group on FB that's been pretty useful for me, those guys are not designing fidget spinners to 3D print.

I find that knowing exactly what to search for is the most frustrating part. You can be so close but if you're not using the proper search phrase, you almost have to stumble upon the answer.

 

[Herding Cats]

It's been years since I've used fusion but I would highly doubt it has anything to do with the post. I know the post with the software I use simply converts the moves to g code, it does don't filter or alter the toolpath.

 

[alphonso]

I misspoke. What is fucked up in the CAM?

He has tried some of the suggestions mentioned with no resolution to his complaint.

As far as using Fusion; he is a whiz with Autocad and thought he would be able to fairly easily learn Fusion. Dream on. Also, I have used EdgeCam since 1993 and when he tried to use it, got very frustrated, so 2 years ago, tried Fusion. It took several months before he could make a usable program.

I can still draw and program the same part he is doing in about 2/3rds the time it takes him. But, since he is buying me out, I try to keep my mouth shut about Fusion.