3D Pocket clearing to many points - machine is slowing down significantly

[k_musialik]

Hello,

I have a problem with raughing operations on Hass VF-2 machine. I have created a demo example, witch i'm ataching to this post. The problem is when i'm crating 3D Pocket clearing around the bosses and i got a lot of points on toolpath. I have worked with smoothing but it did't help a lot, i still have many points in one place. At the end of the problem is that when toolpath like this is sending to machine, the machine does not run smoothly and slows down. 2D Pocket clearing works much better for this examlpe but the problem is i have similar problems with more complicated models like molds in which i need to use 3d raughing operation.

Best,

Kacper

[seth.madore]

Your tolerance is quite large, and you've not turned on "Smoothing". 

Lower your tolerance and turn Smoothing on, your code size is cut in half, your machine should run smoother

[k_musialik]

Sorry i wasn't clear earlier. i tried with other tolerances and with smoothing but it helps only to samo point. At the end i always got many points in one similar position wich cause the problem on machine. i have already talked with Autodesk specialist about that and we even thought that problem is with imported geometry but the model i atached is modeled in Fusion and behawior is the same.

[programming2C78B]

Try raising your minimum cut radius as well, it removes a lot of the whisper cuts. 

[seth.madore]

Your initial toolpath was 116kb in size, with a tolerance of .1 and no smoothing. Turning Smoothing on and reducing tolerance to .05 on each reduces the size to 42kb.

Point density directly correlates to file size, so smaller size = less points.

All that said; is your attached file just a thought exercise, or is this something you actually need to machine?

Is 2D Pocket a suitable alternative? Using that toolpath, I get a 20kb toolpath, which is still half the size..

[k_musialik]

The exercise is similar what i have to do and i'm trying on it. I now that for this 2d Pocket will work perfect but i have similar problems on mold models where 2d won't work. I'm looking around difrent settings but when one thing starting to be better then in other place toolpath starting to look worst.

For example i tried with:

T - 0.05 and S - 0.05 and i still have many places with points near to each other 

T - 0.01 and S - 0.03 (bigger) nearly removes points around bosses but on other places i have mach more points

You can see it on attached photos

[programming2C78B]

Is there a reason you aren't clearing out with 2D or 3D adaptive? Why a pocket strategy for roughing? 

[HughesTooling · Accepted solution]

@k_musialik Did you set the Smoothing deviation to zero to get this toolpath? Also please don't attach pictures, just paste them into the message.

If I use a tolerance of 0.01 and smoothing of 0.03 with the smoothing deviation set to 0.5 I get a toolpath data size of 27kb and a lot less points.

Unfortunately there are some helical moves that might be a problem like this lead out. You could set the vertical lead out radius to zero to get rid of these, brings the toolpath data down to 20kb.

And looks like this in my backplotter. 

Mark

[k_musialik]

Thx Mark looks great.