Seems to be a bug with angled leads if you have rest machining enabled. See attached file. Also why does the option for tangential extensions disappear when you enable Rest?
Mark Hughes
Owner, Hughes Tooling
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@akash.kamoolkar Can you take a look at this please?
Thanks Mark
Mark Hughes
Owner, Hughes Tooling
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@seth.madore Can you take a look at this please.
Thanks Mark
Mark Hughes
Owner, Hughes Tooling
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@HughesTooling Apologies for the late response. Are you referring to the fact that the length of the angled lead isn't incremental with respect to the rest material?
Regards,
@akash.kamoolkar wrote:
@HughesTooling Apologies for the late response. Are you referring to the fact that the length of the angled lead isn't incremental with respect to the rest material?
Regards,
Yes. They seem to be extended to some sort of boundary, I'd like them to be whatever is set under the Angle lead in distance. Using the old turn profile op works as expected.
Thanks Mark
Mark Hughes
Owner, Hughes Tooling
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@akash.kamoolkar I also ran into some problems using an under cut tool. The simulation shows collisions because relieve angles are not being taken into account. Is this being worked on? If this is being worked on you'll need to take into account the different ways the relief angle is applied to the corner radius. Some tips have a constant angle and conical fillet rads but some have a constant radius and variable relief angles.
Tips with the different corner radii, Conical vs. Constant.
Mark Hughes
Owner, Hughes Tooling
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@HughesTooling We have a ticket to make sure angled entry length is calculated with respect to the rest material. As to the collisions it's probably something @daniel.pacific will need to talk to the simulation team about.
Also, with respect to tangential extensions, what kind of behavior would you be expecting for them to work with rest material? We disabled them for rest material because we didn't really know what the user would be expecting to happen and we were waiting for someone to request this functionality so we could explore it then.
Regards,
@akash.kamoolkar wrote:
@HughesTooling We have a ticket to make sure angled entry length is calculated with respect to the rest material. As to the collisions it's probably something @daniel.pacific will need to talk to the simulation team about.
Also, with respect to tangential extensions, what kind of behavior would you be expecting for them to work with rest material? We disabled them for rest material because we didn't really know what the user would be expecting to happen and we were waiting for someone to request this functionality so we could explore it then.
Regards,
Ref. tangential extensions. This part was quite long so I finished the end first, area inside the rectangle.
Where I find tangential extensions useful is to extend the next tool path past the shoulder I've machined up to. Above I have the old profile roughing op and you can see it doesn't even start at the corner!
With the new roughing op with rest unchecked I can start off the part.
Mark Hughes
Owner, Hughes Tooling
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@HughesTooling So would you expect each cutting pass to be extended from the rest area equal to the tangential extension distance? in that case would just increasing the z clearance work?
Regards,
@akash.kamoolkar OK, I see the problem. If there's no material with rest enabled then the extension doesn't really have anything to machine?
If I set the angled leads to 0° I sort of get what I want but lose the 45° lead in. Not really sure how to get what I want. Extending the tool path past the model also comes in useful with cast parts just to give a bit more leeway and peace of mind.
Just increasing the Z clearance doesn't seem to make any difference or have I misunderstood?
Mark Hughes
Owner, Hughes Tooling
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@HughesTooling I think I kind of understand what you're looking for. Let me play around a bit with your part.
Regards,
@HughesTooling Is there any reason you need the angled entry here since angled or not you'll be starting the cut outside the stock anyways? If you turn off angled entry and increase your z clearance that should effectively create a tangential extension. but yes, you won't get the angled entry.
Regards,
@akash.kamoolkar Pretty much everything I make is a one off so the angle entry is nice if I am running slow or single step as it gives you a step before the plunge into the material. Also if I have got something wrong the angle entry is easier on the job\part rather than plunging straight in! Some work is modifying existing parts and castings where the stock model might not be totally accurate.
I hadn't noticed increasing Z clearance worked like it does because it does nothing with angled starts, I'd worked around that using tangential extensions. I guess what I really want\need is for Z clearance to work with angled leads. If I was doing production work where you don't want any air cutting the ops are great the way they are now but I don't get the chance to tune toolpaths for minimum time, just need the part with no crashes.
Thanks Mark
Mark Hughes
Owner, Hughes Tooling
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