Real Time Simulation

[joseinbush]

often it is good to see the simulation in real time mode, to be confident with the feed and speed parameters. Or maybe I didn't realize that one can set that when running simulation.

Also it would be good to see the spindle rotation speed simulated, when one set constant speed surface.

[mike.tessier]

Hi @joseinbush,

Thanks for posting and welcome to the Fusion 360 community!

I am not 100% certain, but I believe that the default playback speed for CAM simulations is the "real-time" simulation speed.

As for the spindle rotation speed simulation, this sounds like something that would be great for the Fusion 360 IdeaStation. The IdeaStation is the place to go whenever you have an idea for a feature enhancement or a functionality improvement. The Fusion 360 product management team regularly checks through the posts there when they are looking for ideas for what they should have the development team work on next!

Please let me know if you have any questions! I look forward to hearing back from you!

Cheers,

[cyprianJA4ZH]

No it is not real-time, the tool path speed is much faster than the "simulation".  To this day is there no way to set the simulation speed to match the actual speed of the machine.  I mean how hard can it be?

[cyprianJA4ZH]

Hi Autodesk,

I am following up if real time playback simulation has been, or will be, added so that we can visualize the actual movement speed of the flute.

I suppose after my last message in December of 2019 there may have been some progress on this?

If not, I'm just wondering if there is a reason why real time playback is not the default simulation speed.  Perhaps there is something I am misunderstanding on how simulations are intended to be used.

Thank you kindly,

Cyprian

[NismoGT]

@cyprianJA4ZHI came here looking for the exact same thing. Hell, a way to display the speed on the slider or something. Real-time simulation speed see like a fairly basic feature that would have been implemented a looooong time ago. IPM is IPM regardless of the machine.

[JaumeMartinez]

When you run a CAM simulation not all the tool paths run at the same speed even if they are programmed with the same feed.

For example, in a same operation the simple moves (G1) goes faster than (G2 or G3) because they are easier to process by cpu / gpu.

 
Program an helix entry with the same feed than the cutting feed, the helix goes much slower because is a  more complex motion to calculate its simulation.

I worked with other CAM softwares as  Gibbs, Tebis, Vericut,... and I have always observed the same thing inside simulation.

In my opinion, after more than 10 years in CAM and CNC, it's a function that CAM programmers don't need.

Kind regards

[cyprianJA4ZH]

Allow me, or I should say us (as others have also requested this), to be the first cam programmer(s) that need(s) this feature. 

Now, thank you for the explanation, however in this case the cam simulation, which mind you, stems from pre-calculated tool paths, can actually run faster than real time, right? Right.

Using the time adjustment slider, you can in fact make the simulation play back even faster then real time so yes I do not see why it would be impossible to implement a speed, or varying degrees of speeds for different  g codes to represent real-time settings.

Longevity of being a cam operation aside, can anyone from Autodesk explain from a development point of view why real-time speed cannot be a default playback option.  As a product marketed for ease of use, and entry level learning, I'd say that quite contrary to someone who may already have 10 years of experience and knows what their feeds and speeds should be be having broken many tools in the process, for people just learning, it would be a great visual aid.

Kindly,

Cyprian

[JaumeMartinez]

Hi @cyprianJA4ZH ,

If you need to know the Cutting Feedrate while simulating you can check it in the Info window.
It is a good way to know the Feeds and Rpm while viewing the machining.

Kind Regards

[Anonymous]

This is very disturbing.

how could something so basic have not been fixed and its 2021 already ?

I paid good money for this program. 
FIX IT !

[Anonymous]

maybe we want to see the actual speed with our eyeballs on the cam insted of poping it in the matchine and beeng like hımmm yea thats too fast and maybe break a mill or something not everyone ıs good with numbers ı can see the feeds and speeds while simulating but i cant relate that to the real life unless i see it so maybe dont speek for everybody because you dont have that problem yourself some of us want this

[Anonymous]

I'm new to the cam industry , and this feature to me and it seems to a lot of poeple , could be very useful.

It's odd that such a basic thing it's taking so long to implement it .

Good work fusion team don't let us down .

[speedfreakgarage]

BUMP!  I also want to see the Realtime toolpath speed.  Why isn't there an option for that?  Paying for this software, btw.

[Z-K-O]

The rendering engine and computing power of today would certainly support this feature, as is evident from just playing with the speed slider during playback. I am not new to CAM, but it still always feels like something is missing when the simulation races through ramp features at the same speed as rapid or even cutting feeds. That feeling has never gone away.

This feature would not only help teach new users, but help experienced users invalidate results with less encumbrance. Since the most anomalous and error-prone area is the transition into tool engagement, and since this is where differing feed rates are most often concentrated, the feature makes for an important improvement over the current visual indicators. This means decreased iteration time, I believe significantly, in both new and experienced user cases.

[speedfreakgarage]

Considering how much we pay for this software, not having realtime CAM simulation is a major cheat.  And any excuse that Autodesk might make, is completely false.  The software knows the feedrate for each move, so implementing a button to playback in realtime is child's play for an experienced programmer.

We absolutely need to see a realtime simulation of how fast an endmill is going to travel across the stock, before risking breaking very expensive tools.

[David.BoydU3QU8]

I totally agree with this. Real-time simulation is a must. I don't think it should even have been questioned. someone let me know if they ever make a patch. 

[speedfreakgarage]

Yes!!!  Actually, i am programming a complex CAM path right now, and it is extremely frustrating and confusing for the rapids, helix, plunge and ramps to all simulate at the same speed.  I've broken 3 endmills so far, and i 100% blame Fusion for not properly simulating the toolpath, they were all simple errors that a realtime simulation would have caught.  FUSION TEAM!  GIVE US REALTIME SIMULATION!

[Dr.sheeps25]

As many members have said this would be a very useful feature. I believe the real reason why autodesk is always really slow to change anything and to create meaningful updates to glitches etc is a lack of knowledge of there own programs. From my research they don't write most of there code they buy the rights to others programs and merge it or just offer it as there own. So that's my guess and an understanding of the background of the simulation would be necessary to implement such a change so don't expect to ever see it.

[HobbyBuilt]

Doesn't seem like this has been fixed yet. I also think this needs to be implemented already! At the very least in the simulation they could put a tiny indicator mark on the sim slider to show what is realtime. PLEASE FIX THIS!!!

[alex_rosePX4V2]

After 10+ years of manual machining, I know what the proper speeds and feeds should look like for an operation.  Doing a visual sanity check would take a lot of guess work out of setting up some operations the first time.  It seems like a very minor request to add a button that sets the time scale to "1:1" or at least give you an indication of how fast it is running compared to reality (1/2x, 2x, etc.)

[NismoGT]

After reading about how toolpath simulation works, I have come to learn
that it is a bit more difficult than just "make it real time". I'm sure
they can get a close to real time simulation but your computer hardware
plays a big role in this working accurately. Perhaps they can add an option
to adjust the speed slider to coincide with the estimated operation time.