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high speed surface toolpaths


wildcat99
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No hardmilling or steel here, but I've got a part I'm using to learn high speed surface toolpaths. Material is renshape and the part is basically a bowl shaped cavity with a flange and a small boss off center towards the bottom of the bowl.

 

I like the way high speed is setup...no "gap settings" or "roll tool" options for example. I never know for sure what to put there. The only thing I don't like so far is it takes forever to regen when experimenting with different settings.

 

A couple of questions:

1. When would you use high speed vs regular surface toolpaths?

 

2. In the highspeed finish scallop op for this part, the transition is set to tangential and backplot shows each transition drops to the plunge rate even though the tool doesn't leave the part. Does it really need to slow down here? Should I change the plunge rate same as feed rate?

 

3. Also, does it make any sense to apply Highfeed to a highspeed toolpath?

 

Thanks for your help cheers.gif

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When experimenting with settings, crank up your tolence and stepover to see if you got the general tool motion right, then tighten it all up when your happy.

 

1) I prefer to use high speed when cutting an entire 3d part. I like regular 3d for targeting features on 2d stuff.

 

2) Never noticed the transition feedrate reduction. Usually they are smallish moves anyway. Adjusting the plunge rate would fix it.

 

3) Also not sure about high feed for high speed. I have a feeling it might not work so well, but worth a try to find out.

 

hth

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