MC2025 Public Beta 3 Swarf toolpath

[gcode]

Asking questions on the Mastercam forum is a lot like shouting at clouds, so I thought I'd try here.

The MC2025 PB3 Swarf Toolpath/Advanced Control now has Advanced and Advanced (Legacy)

Obviously there  is something different about the new Advanced or they would not have let Advanced (Legacy) behind.

Does anyone know what the difference is?

I'm doing a new project and getting  excellent results from the Swarf toolpath.

but I really can't detect any difference between Advanced and Advanced (Legacy)

 

[#Rekd™]

I am not onto MC2025 but would like more information in general about when and why you choose these different options. 
 

learning more each day!

 

[Aaron Eberhard]

I had to search for the latest release of MW documentation:

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Automatic - Contact lines are placed in a way primarily minimizing the undercut to the target geometry and secondarily minimizing the allowance to the target geometry.

In case the target geometry forms a ruled surface, this strategy will try to create a toolpath with neither undercut nor allowance. In case the target geometry is no ruled surface, it will try to create the toolpath with the least undercut and allowance possible. This strategy is intended as the default, first-shot strategy. It contains a number of heuristics to create a reasonable tool axis tilting on a wide range of input geometries. Optionally, users can define tilt lines to fine tune the tool axis alignment in specific areas

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Automatic(legacy) - tries to place the tool on the swarf surface in a way that minimizes the area between the contact line from the lower to the upper curve and the swarf surface. Since the swarf surface is sometimes a parametric freeform surface (with double curvature), the area is not necessarily zero.

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Sounds like they improved a some of the cases where automatic choked up, but are acknowledging that it might break some other situations they couldn't test for?

[gcode]

Thank you !!!

"latest release of MW documentation"  is this something  that is available the masses??

[Chally72]

I looked into this and it looks like this escaped the What's New, but the description above is accurate. It's hard to quantify the changes you'll see other than "It does better in some scenarios". Because the results are different enough that it could change existing Swarf toolpaths substantially, they chose to leave in place the old method (legacy) as an option and default to the new Automatic in new paths.

[Aaron Eberhard]

7 minutes ago, gcode said:

Thank you !!!

"latest release of MW documentation"  is this something  that is available the masses??

If you have google The official channel is behind a login/password, but you can often find the quarter or two previous releases posted on various CAM forums.  

They always do their documentation with 202x_yy, where it's the year and the quarter release.  Since Mastercam always has the last of the previous year (note: This is an assumption that this is still the case), you can search for ModuleWorks End User Documentation 2023_12 to find the build that this year's Mastercam will use.   I found this in a 2023_06 on a gibbs forum.

edit:  I will say that I couldn't find the 2023_12 with <10 minutes of googlin'.   That'll be available on the Mastercam portal when 2025 is officially released.  If you stumble across a link, I'd be interested

[Chally72]

The documentation is actually available on Mastercam.com, under the Learning- Documentation area:

Downloads – myMastercam

 

The "Multiaxis Help" files are the ones you're looking for. Of course, be aware that not everything in those files is implemented or interfaced as shown.

[Aaron Eberhard]

1 minute ago, Chally72 said:

The documentation is actually available on Mastercam.com, under the Learning- Documentation area:

Downloads – myMastercam

 

The "Multiaxis Help" files are the ones you're looking for. Of course, be aware that not everything in those files is implemented or interfaced as shown.

Right, but that would be the 2022_12 release since Mastercam 2024 is the latest version on there    This new feature isn't in my copy of that doc..

[Chally72]

Yep, correct. It will be updated with the latest MW documentation upon 2025 release- not as helpful for Gcode now

[gcode]

As always when you need help, ask the experts.

Thanks guys!!!

I'm using the new automatic on a vane I'm doing as it looks really good in MC Backplot , Postability Machine Sim and Vericut

It will be several weeks before it gets a real world test on our Okuma MU-1000H.

I'll report back then.