Strange Toolpaths

[bmilford]

I have been having some strange things happening with some of the toolpaths that I have been working on lately (see screenshot).

 

 

 

The surfaces on the left are check surfaces and the other surfaces are drive surfaces, the max. stepdown is .02, the transition is set to follow surface, conventional cut. I have tried to change settings to eliminate the short little cuts that don't seem to be following a surface, with no luck.

Is there any reason to be seeing these strange cuts?

 

Thanks, Brian

[Lee.]

have you tried changing your gap settings?

 

also, try roll cutter options.

 

HTH.

[Columbo™]

sure does look like a gap issue

[Ocean Lacky™]

If Stock to leave on drive and check surfaces are indentical this might happen, too. Try changing one or the other a little bit...maybe +/-.0001 or so.

[Thee Rickster ™]

Is that wall in front vertical? (no taper)

it may create issue with the near by check surfaces

 

where the surfaces meet may not be perfect match

 

other wise try a HS waterline

but remember the path stays down alot more

[bmilford]

Ok, Gap setting is 300% of stepdown.

 

I tried changing the roll tool at surface edge settings from automatic to only between surfaces, it took forever to update and really didn't change the result.

 

Just added .0001 to leave on check surfaces, changed the funky stuff a little.

 

The front wall is vertical, the surfaces are created from an Inventor solid with no changes, could they still not match up perfectly?

 

Thanks, Brian

[jeff]

Try changing your gap to something like 1"

Maybe 300% is still too small.

Just a thought.

[crazy^millman]

In Gap settings I use 10,000% and that seems to care of most of my Gap problems.

 

HTH

 

[ 12-05-2007, 05:57 PM: Message edited by: Crazy^Millman ]

[bmilford]

I have fixed the strange parts of the toolpath, it seems that adjusting the amount of material left on the check surfaces fixed it.

It still is not exactly what I would expect.

 

 

Why does the edge of the toolpath come straight down, instead of following the angled edge of the surface? Then why does the toolpath make one pass at the very bottom out to the edge of the check surface?

I have tried to change every other setting recommended, or otherwise with no better toolpath.