2D SWEPT QUESTION ??

[tim_h]

I have not used this toolpath for a while.

 I thought I could change the order in which I chain the WF GEO and get a nice path that would run up and down the angled wall (UGLY) .

This is all I could get... I swear I have conquered this once before, but no such luck this time.

Am I missing something ?

I have tried .250 and .125 ball Endmills, same result. I wanted to step the .250 ball into the corner leaving a .125 radius. The tab is about .350 tall.

Using X9

 

Thanks for looking !

[Guest]

The other direction cutting up and down would not be a 2D swept, it would be a 3D swept....

Think of the motion required......across can be a YZ the and  X..only 2 axis

Up and down would be an XYZ...possibly requiring 3 axis

[tim_h]

Thanks

 

I did give 3d SWEPT a shot and it didn't look right. I thought perhaps I needed to offset the GEO and use the tool CENTER  instead of TIP...

[Guest]

SHare a file?

[tim_h]

I then gave up and went with WATERLINE and RASTER to get it.

 

BUT I SWEAR I HAVE GOT IT TO WORK IN THE PAST...

[Guest]

If your lines are dead straight along the axis, you can get 2D Swpet to work....if there is ANY skew, it becomes a 3D move

 

[tim_h]

No skew... all lines are on the same y axis.

They were created from a curve slice. 

All geo is squared up with axis'.

 

Thanks for taking time for this !

I'll look more monday a.m

Have a great weekend !

[Guest]

Make sure there are no splines....

 

[tim_h]

They are LINES and ARCs.

[Guest]

If you want to put up a file.....I'll be happy to have a look at what's up....

If you can't share it...strip everything but the geomtry and path...

[tim_h]

Here is a stripped down version. It's not a solid anymore just sheet body.

I made a curve slice on the sheet body then tried SWEPT 2D and got the same results.

SWEPT 2D CHALLENGE.mcx-9

[huskermcdoogle]

Swept3d appears to work well.  I took a quick shot at making 2d work, but it didn't.

[tim_h]

Thanks for trying !

 

I got a SWEPT 3D to work too, but it wasn't until after I had RASTER and WATERLINE tool pathed it.

[Guest]

I only have 2018 & 2017 here at work...

 

but 2D like this?

 

 

JP_SWEPT 2D CHALLENGE.mcam

Edited September 25, 2017 by Guest

[tim_h]

yes, THAT is exactly what I was after.

My 2017 BETA has expired so I can't open your file.

Until this company re-ups their maintenance... I had to push pretty hard last time around   

 

When it works it's very short and  simple. I'm not sure what my problem is here on X9.

 

THANKS !

[Guest]

Most likely it's the directinal buttons not being set right...and/or the chaining order

In yours, all I did was open up the geometry and switched the positions of chain 1 & chain 2 by dragging and dropping it

Edited September 25, 2017 by Guest

[tim_h]

Yeah I did that too.

That's when I got that real ugly tool path.

So I went and created new tool paths and changed the order of which I chained, both ways, and still no luck.

 

DIRECTIONAL BUTTONS ??

Under CHAINING OPTIONS ?

[Guest]

I just re-ordered the chains

and these settings here aftect the output

Always remember the chaining order......

The 1st chain is the shape...the 2nd chain is the "
cut this shape" along this chain

and the the point at which the 2 chains intersect

Edited September 25, 2017 by Guest

[tim_h]

The 1st chain is the shape...the 2nd chain is the "
cut this shape" along this chain

This is almost verbatim what I say to myself while toolpathing SWEPT2D

 

Re-ordered, check.

Re-chained as well. Both ways.

Also tried all possibilities on right and left settings.

 

Someone was on my computer whilst I was running from IRMA for a few days.

He may have changed something... He is on VAC now though.

[neurosis]

On 9/25/2017 at 10:04 AM, tim_h said:

The 1st chain is the shape...the 2nd chain is the "
cut this shape" along this chain

This is almost verbatim what I say to myself while toolpathing SWEPT2D

 

Re-ordered, check.

Re-chained as well. Both ways.

Also tried all possibilities on right and left settings.

 

Someone was on my computer whilst I was running from IRMA for a few days.

He may have changed something... He is on VAC now though.

 

Its not just you.  I opened this in X9 and got the same results that you did.  I opened it in 2018 and it worked as you would expect.  Something is wrong in X9.

[Guest]

I just had to install X9....jogged my memory

This was a bug in X9 working on any other plane but Top....

 

[tim_h]

Thanks for taking the time on this !

I very much appreciate the help and support I get from here