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We have added a new beta feature for pocket which allows you to do morphed spiral machining for pockets (see picture pocket_morphed_spiral). Note that the feature is available for both 2D and 3D pocket.
By using this feature you can avoid transition moves between the offset passes for conventional pocket roughing (see picture pocket_normal). For conventional offset roughing the engagement will drop to 0 at the transitions. However, by using this new feature you can keep the tool engaged at all time.
Note that the morphed spiral motion is still controlled by the given stepover and that you will likely get more steps than for the conventional offset roughing. If you need to control the true engagement you have to use the Adaptive Clearing strategy.
You need to enable the setting called "Use morphed spiral machining" (see picture pocket_morphed_spiral_setting). It is disabled by default. As always you need to enable the "secret" beta mode to see this setting.
Let us know if you encounter any bad toolpath quality. Thanks.
René Fonseca
Software Architect
By using this feature you can avoid transition moves between the offset passes for conventional pocket roughing (see picture pocket_normal). For conventional offset roughing the engagement will drop to 0 at the transitions. However, by using this new feature you can keep the tool engaged at all time.
Note that the morphed spiral motion is still controlled by the given stepover and that you will likely get more steps than for the conventional offset roughing. If you need to control the true engagement you have to use the Adaptive Clearing strategy.
You need to enable the setting called "Use morphed spiral machining" (see picture pocket_morphed_spiral_setting). It is disabled by default. As always you need to enable the "secret" beta mode to see this setting.
Let us know if you encounter any bad toolpath quality. Thanks.
René Fonseca
Software Architect
Yes, Adaptive Clearing will generally beat pocket toolpath. However, pocket does have features not supported for Adaptive Clearing and when using insert cutters the depth of cut will be small in which case pocket might be more useful than Adaptive Clearing.
The feature has to go out of beta before we decide whether to include it in HSMXpress or not.
René Fonseca
Software Architect
The feature has to go out of beta before we decide whether to include it in HSMXpress or not.
René Fonseca
Software Architect
Mikkel wrote:
I'm developing the morphed spiral strategy. I would appreciate all kinds of feed-back. The feature is very new, so it might easily happen that somebody discovers something that I have not seen so far. If you have any comments, please write.
Kind regards,
Mikkel
Cool concept--
Take a look at the attached part-
It contains two duplicate operations, where the only difference is a slight change in stepover; however with very different results.
My assumption is, that this is where the normal pocket routine loses its ability to generate offset passes.
In practice, this algorithm almost seems like the worst of both worlds. It generates a very large program size, that doesnt have equal tool engagement, and appears to have a significantly longer runtime in virtually every scenario I tested.
Am I missing the upside? I realize the tool will remain in contact with the workpiece all the time, but I fail to see any real benefit from that.
I havent actually posted any code, so I cant attest to any performance effects.
Yes, not useful for this part. You need pockets which are fairly circular like in my example.
The important point is that the tool will stay engaged always which isn't the case for normal pocket and Adaptive Clearing. This can be important for some types of material like ceramics.
René Fonseca
Software Architect
The important point is that the tool will stay engaged always which isn't the case for normal pocket and Adaptive Clearing. This can be important for some types of material like ceramics.
René Fonseca
Software Architect
René Fonseca wrote:
Yes, not useful for this part. You need pockets which are fairly circular like in my example.
The important point is that the tool will stay engaged always which isn't the case for normal pocket and Adaptive Clearing. This can be important for some types of material like ceramics.
Alright, so its probably not currently very useful for me.
Perhaps feedrate optimization could be implemented such that the incredibly low engagement areas are performed at significantly faster feeds? It seems like a toolpath strategy that could benefit immensely due to a controlled feedrate change- After all, it produces zero linking moves.
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