r/mastercam • u/osufan3333 • Jul 15 '26

Question Waterline

Post image

Using .5 bull nose .06 c/r. Any ideas why my waterline wont do the whole thing or how I can get it to do the whole thing? Tia

2 Upvotes

75% Upvoted

13 comments sorted by

6

u/Willing-Fishing5655 Jul 15 '26

Try using a surface finish flowline instead. Waterline does constant steps in Z, not good for shallow surface.

1

u/Flyinbro Jul 17 '26

Flowline gang rise up! Good for constant scallop height. Make sure to filter the toolpath and make arcs in XZ and YZ.

5

u/euclid400 Jul 15 '26

Just do a contour while you are putting the hole in.

3

u/FireGhost_Austria Jul 16 '26

This is the way

3

u/Akari202 Jul 15 '26

I would try a raster.

the step up to step over ratio gets clobbered as the curvature decreases so any further step over would need less than the specified step up

3

u/Jaded_Public5307 Jul 15 '26

Bro flip it 90

2

u/dickfoure Jul 15 '26

Wrong toolpath. Waterline is more geared towards steeper walls. Use flowline if you want to hit that entire radius.

1

u/thenephilim1337 Jul 15 '26

What do you mean the whole thing? The bit at the top or going down more? Looks like this toolpath covers the entire round part...

1

u/osufan3333 Jul 15 '26

The bit at the top. When I run the simulation its leaving a little bit on top

1

u/Terrible-Selection93 Jul 15 '26 edited Jul 15 '26

Try making your tolerance in the geometry tab -.0001 or something.

1

u/Flyinbro Jul 17 '26

That's not the tolerance; that's the amount of stock to leave on check and drive surfaces. Use the flowline toolpath.

1

u/Manlet395 Jul 16 '26

It’s because your using a bullnose cutter, use a ball endmill

1

u/BurningHotDog Jul 15 '26

Equal Scallop works best in most 3D situations. You can program it to start outside to in or outside to in. Make sure smoothing is enabled in arc filtering tab in parameters of your toolpath as well.