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nlehman13-Aquamarine
13-Aquamarine
December 18, 2023
Question

How to have mill path follow outside in, instead of inside out.

  • December 18, 2023
  • 1 reply
  • 2789 views

I have always struggled with Creo when it comes to getting good millpaths.  No matter what I try, it always seems like Creo defaults to pushing the cutter directly into the middle of the part (material fully surrounding the cutter) instead of slowly milling its way into the part from the outside in.

I have dealt with this issue for many years now, and decided it's time to make a post here asking for help.  As you can see in the video, it would be ideal to mill the outside first, allowing 2/3rds of the cutter in the material until it mills completely to the center.

(view in My Videos)

1 reply

C
Civodul14-Alexandrite
14-Alexandrite
December 19, 2023

Hi,

 

Can you send the sequence parameters?

try SCAN_TYPE to CONSTANT_LOAD

The best solution is to use the HIGH SPEED MILLING option

 

 

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nlehman13-AquamarineAuthor
13-Aquamarine
December 19, 2023

I tried CONSTANT_LOAD and every other SCAN_TYPE with the same results.  This has been an ongoing issue for a very long time now where we fumble our way through Creo toggling every option on or off, then adjusting the mill window just a hair until finally by absolute luck, we get somewhat of a workable toolpath, albeit still with issues that we cannot control.

As far as high-speed machining goes, we do not have that extension.  But I am curious why we would need extensions designed for mold making and 5 axis machining just to get a usable toolpath for the ultra-simple machining that we do here?

    K
    KenFarley21-Topaz II
    21-Topaz II
    December 19, 2023

    I don't know what type of toolpath sequence you're using, but I've always been able to get exactly what I want with Classic NC Steps -> Custom Trajectory. It's not an automated method of defining toolpaths, but I prefer the control it affords me.

    I find that the "easier" sequence types, volume milling and the like, don't do exactly what I'm looking for.

     

    Unfortunately, to use this type of path definition, I needed to define a config.pro option:

    enable_classic_nc_steps yes

    which is a hidden option. Maybe someday it will go away, but it hasn't yet.

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