Tutorial trouble

[Anonymous]

I've just begun the tutorial for using the CAM side of Autodesk Fusion, and I'm already experiencing issues. I've followed the instructions to the letter, but I'm getting an exaggerated lead in on the slotting operation. I've tried reconfiguring the operation with mixed results, none of which look like the sample in the demonstration. Here is what my toolpath currently looks like:

As you can see, the lead in is enormous and does not match what the demonstration window shows. I know it's not a big deal for the sake of the tutorial, but there is no way I want a lead in like that when I start using this software to program a machine.

Thanks,

Tanner

[Steinwerks]

Can you export the file as a .F3D and share it here? I never went through any of the CAM tutorials so just curious what your settings look like, and if it's an error specific to your install or not.

[Anonymous]

Here ye be:

[Steinwerks]

I thought this might have more to do with the way the stock had been defined, but no matter what I'm getting some pretty weird toolpaths including collisions with the model. Maybe @jeff.walters can take a look and get back with what's happening here.

[HughesTooling]

Once you select the part in the setup under model it works ok for me, had to change the cutter in the adaptive for a longer one though.

Mark

[Steinwerks]

Mark, try shortening your heights for the slot operation significantly. Even with the model selected in the setup there are super long leads that collide with the model, as per the screenshot I uploaded.

[Anonymous]

The issue persists in your demonstration. That lead in is still enormous and doesn't look like the demonstration. I was aware of having selected the wrong tool for the adaptive toolpath, but this is my fourth attempt at the tutorial and even when selecting the suggested end mill for the adaptive toolpath, I get the same result with slotting. Does anyone have any other ideas?

[fredsi]

Atom,

Seeing the same thing. There is something wrong with the profile ramp; shoud not start the ramp outside the selected geometry. Plunge and Pre-drill seem to work ok, but Profile is definitely goofy.

I think the tutorial also needs some work....why start the slots from the top of the stock; it was removed by the facing operation.

Fred

[HughesTooling]

Sorry should have read more carefully

One thing I noticed is if you go to the model workspace and recalculate the design the slots disappear, so the design is in an unstable state, not sure were it's going wrong but I think that's the problem.

Mark

[HughesTooling]

There's something wrong with sketch7 when you try and edit it it's empty but when you just select like here the curves are there, don't know what's wrong.

Mark

Edit I see now the sketch folder is turned off.

[Steinwerks]

I found the same thing. Tried locking the slot arcs to see if they'd define enough to extrude out, but no go.

@Anonymous: was this your tutorial model file or was this the one included with the Fusion examples?

[HughesTooling]

Here's the problem the white dots show all the slots are open contours. You dont have any constrains so thing can move around.

Mark

[fredsi]

Just to make it a bit more interesting....

I exported the part as a .stp file and brought it into Inventor HSM Pro. Threw stock around it, faced and then tried 'Slot' on the four slots....same problem  

If I choose one or two slots (adjacent), the ramps are confined to the slot boundaries. But when I add a third slot, the 'long' ramp shows up. Would appreciate if anyone else can duplicate this. May be indicative of some problem with Profile ramping in the slot routine beyond the geometry problem that Mark pointed out since the .stp is now a dumb solid. Thanks.

Fred

[Steinwerks]

I get the same collision issues in SW/HSMXpress.

EDIT: I only get that on ONE of the slots, though. After I run Feature Recognition it remains, so that didn't solve the geometry problem.

[Anonymous]

I just used the model provided for the CAM tutorial.

[fredsi]

Atom,

Thanks for checking...

Have attached pic from Inventor HSM. The slots at 12 and 3 o'clock were fine (the Profile ramps stayed in the geometry boundaries). When I added the slot at 6 o'clock, the long ramp showed up.

Jeff ???

Fred

[HughesTooling]

The circular pattern doesn't seem to work too well. I fixed one of the slots then made a circular pattern and the three copies come apart.

If I can reproduce this I report in the Fusion forum.

Mark.

[fredsi]

Mark,

What happens if you pattern the slot feature itself instead of the geometry?

Fred

[Anonymous]

Thanks for all the help so far. I'll keep checking back to see if a remedy for this issue is found, but for now I'm going to proceed with the tuturial under the assumption that I at least grasp the principal of programming a slot to be machined with this method.

[HughesTooling]

---

@fredsi wrote:

Mark,

What happens if you pattern the slot feature itself instead of the geometry?

Fred

---

I tried but there were still problem but i'm not convinced the first slot is good. The sketch was not constrained very well and when I tried adding tangent constrains everything started moving around.

The scketch pattern seems to have a bug, I reported in the Design forum.

Mark