## Toolpath calculation recomended PC HW

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### Toolpath calculation recomended PC HW

Hi,
I have upgraded to a decent PC (hopefully) but when I hit "calculate toolpath" it still takes ages.
I've checked task manager to see whether I'm low on resources and during very detailed toolpath calculation (object 200 mm in diameter with 0,5mm tool and 7% step) I don't see any significant peaks.

What needs to be "good" on the PC to calculate the toolpaths faster?

Thanks
Attachments
screen from mid calculation
MrYuri

Posts: 25
Joined: Wed May 25, 2016 2:31 pm
Model of CNC Machine: F-600

### Re: Toolpath calculation recomended PC HW

How long is ages and what sort of toolpath is it? If there's no copyrighted material involved you could attach your file so it can be checked to make sure there aren't any errors etc. Excessive toolpath calculation can often be a sign of problems with the vectors.

Vectric Archimage

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### Re: Toolpath calculation recomended PC HW

If you right click on the CPU graph, and select "Change Graph to Logical Cores", you'll probably see that 1 core is doing all the work, because Aspire is not multithreaded.
Gerry - http://www.thecncwoodworker.com
ger21
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### Re: Toolpath calculation recomended PC HW

Ages is more than 40 minutes.
When I did the post about this, it was in about 40% and now it is at about 90% calculated (my estimate by the yellow bar on bottom). And now is 30 minutes later.
I think I can rule out vector issues as object is 24 closed vectors.
Each is made into a simple round object.
Final stacked model I made into a single component.
I made a subtraction and added a zero plane as it will be a mold.
Total height is less than 10mm.

btw I still have Aspire 8.5
MrYuri

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Joined: Wed May 25, 2016 2:31 pm
Model of CNC Machine: F-600

### Re: Toolpath calculation recomended PC HW

ger21 wrote:If you right click on the CPU graph, and select "Change Graph to Logical Cores", you'll probably see that 1 core is doing all the work, because Aspire is not multithreaded.

nope
Attachments
MrYuri

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Joined: Wed May 25, 2016 2:31 pm
Model of CNC Machine: F-600

### Re: Toolpath calculation recomended PC HW

Are you running the 32 bit or 64 bit version of the software, what ram do you have fitted & what graphics card, how much free space have you on the HDD all these things make a difference

martin54
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### Re: Toolpath calculation recomended PC HW

I'd ask myself: do I really need a step-over of 0.035mm (i.e. about half to a third of the diameter of a human hair)?

At that resolution you are calculating 5,714 raster passes (half that for an offset toolpath).
Last edited by adze_cnc on Tue Jun 26, 2018 10:17 pm, edited 1 time in total.

Vectric Apprentice

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### Re: Toolpath calculation recomended PC HW

martin54 wrote:Are you running the 32 bit or 64 bit version of the software, what ram do you have fitted & what graphics card, how much free space have you on the HDD all these things make a difference

Aspire is 64 bit,
graphics card is few years old but as you can see on screens it's not even sweating during the computing.
Ram is Corsair 16GB KIT DDR4 SDRAM 3000MHz CL15 Vengeance
I have aspire on SSD with 50 GB free.

other details can be seen on screens.
MrYuri

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Joined: Wed May 25, 2016 2:31 pm
Model of CNC Machine: F-600

### Re: Toolpath calculation recomended PC HW

adze_cnc wrote:I'd ask myself: do I really need a step-over of 0.035mm (i.e. about half to a third of the diameter of a human hair)?

At that resolution you are calculating 5,714 raster passes (half that for an offset toolpath).

appreciate the feedback but that does not add to the explanation for the question.
just for info: If I use a small bit and have big stepover, lines are visible.
If I use bigger bit tool it will not get the details
MrYuri

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Joined: Wed May 25, 2016 2:31 pm
Model of CNC Machine: F-600

### Re: Toolpath calculation recomended PC HW

Just setup a file that I think matches what you're describing and it calculated in about a minute on my PC which is less powerful than yours. Really need to see the actual file to know what's going on.

Vectric Archimage

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### Re: Toolpath calculation recomended PC HW

I agree with Adrian - there's something odd with your file. I tried setting up a similar sized model with a .41mm (1/64") bit at 7% stepover on a much lower spec'd machine and came in around 5 minutes. I'm also struggling with amount of detail you're needing. I also set up this model with a 1/16" bit (1.59mm) and the difference in visible detail was barely noticeable. From more than a meter away I would not be able to see it.
Steve Godding
D&S Artistic Woodworking http://www.dsartisticwood.com

dealguy11
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### Re: Toolpath calculation recomended PC HW

dealguy11 wrote:I agree with Adrian - there's something odd with your file. I tried setting up a similar sized model with a .41mm (1/64") bit at 7% stepover on a much lower spec'd machine and came in around 5 minutes. I'm also struggling with amount of detail you're needing. I also set up this model with a 1/16" bit (1.59mm) and the difference in visible detail was barely noticeable. From more than a meter away I would not be able to see it.

I make small models that you don't observe from meter away but when you hold it in your hands.
MrYuri

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### Re: Toolpath calculation recomended PC HW

Adrian wrote:Just setup a file that I think matches what you're describing and it calculated in about a minute on my PC which is less powerful than yours. Really need to see the actual file to know what's going on.

will post it later on
MrYuri

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