Reverse chain bug?

[Thad]

When you reverse a chain, would you expect the starting entity to stay the same? I do, but it doesn't. I don't think it's always been that way, but I could be wrong. It's becoming an issue now because we're doing a LOT of shown/opp parts. When I mirror the geometry, I should just have to reverse the chains and regen. The problem is that I now have to change the start point because the entity that the chain starts on jumps to the adjacent entity.

 

To see what I mean, create a rectangle and use a contour toolpath to cut around the outside of it. Make it climb cut with the first entity being bottom line. Now, mirror the geometry. In the chain manager, right click-Reverse chain, right click-change sides. Now the chain starts on the left line. The start point has to be altered too.

 

Not a big deal when there's only one pocket, but try that to a part that has 60 pockets and 25 keys.

 

I'm familiar with the mirror toolpath option and I don't use it for a few different reasons.

 

Thad

[mayday]

Thad,

It's 1/4 2 8 on a saturday. Put the mouse down and have a beer

[Thad]

Wes, I got 62 hours in this week and that's with Monday being a vacation day.

 

...and I *am* having a beer. In fact, I'm going to get another one right now.

 

Thad

[Midwest]

quote:

---

Since some users are Maintenance customers and some aren't, there are now a lot of possibilities as to what version everyone is running. It would be very helpful to state that in the question. Also, use the X2 message icon or other appropriate icon when posting to further help yourself get answers quickly.

 

 

Thad teh part-time moderator [big Grin]

---

 

 

quote:

---

X2 MR2 SP1 Mill Level 1 with Solids

---

X2 or X4?????

 

 

Sorry I don't have X2 installed anymore.........

 

 

 

 

j/k Thad...........couldn't resist.........have another beer on me OK.

 

 

[Leigh @ Kodiak]

Technichally, the start entity is the same. Think of the start point being the point between those two lines, rather than the line itself.

 

I agree though, if MC could recognize the starting line/arc, etc, rather than the start point, it would be very useful when mirroring ops.

[Midwest]

I don't have Mastercam @ home to try, but mine is set to midpoint of entity...........once a midpoint always a midpoint.

[Thad]

quote:

---

Technichally, the start entity is the same.

---

No it isn't. It changed to the left entity.

 

If you meant to say the start point is the same, that's true *if* you don't have "start at midpoint on closed contours" selected in lead in/out, which I do.

 

When I select an entity to start on, I say to myself, "I want to start on this entity", not "I want to start at this point."

 

Thad

[Thad]

quote:

---

once a midpoint always a midpoint.

---

One would think. Try it at work and you'll be disappointed (unless this is a bug and it was fixed since X2).

 

Thad

[Thad]

As the author of "Thee sticky" (is that like "Thee Circle?...I think not! ), my sig lists the version I'm using.

 

Thad

[Midwest]

[Leigh @ Kodiak]

Lead in/lead out considers the starting entity as the first line,arc, etc AFTER your start point. The start point does NOT change when reversing the geometry.