Dynamic Mill leaves narrow areas ?

[Chris Rizzo]

Dynamic Mill. .125 tool. I've got a space between a boss and wall .128. The tool will not go between. Seems like going in there would violate it's stepover percentage, thus it doesn't...ok enough. . not ideal though. Gotta be sharp and see it, and then add a little path to cut said area.

 

However in the 3d HST horzontal area there is the trochodial motion page, where it will reduce the loop radius by a percentage trying to fit, and if it can't reduce anymore, will go to a slower feedrate yet still go through the slot.

 

Am I missing something with dynamic mill? Seems like the trochodial page from 3d hst should also be in 2d hst, if not more-so.

[broken tool]

Dynamic mill may have some underlying code where it needs a min amount of material to clear out a section but there is a setting that may help out. The larger the "Toolpath radius" setting the more room the toolpath needs so lowering it may help out to reach more un-cut areas.

[gcode]

I don't think a .125" tool going through a .128 slot would work very well.. even if Mastercam

would toolpath it.

[Mic6]

Are you leaving stock on the walls?

[Goldorak]

set your tool path radius at 0

 

and don't set stock to leave more than .0014

 

but i doubt that dynamic mill will cut this area, this toolpath don't like tight space

[Chris Rizzo]

Yes it's not really an ideal situation, but the combination of shallow total depth of material, in a deep cavity, a .125 tool will work adequately. I've beat this to death and think I'll send it in for interrogation.

 

oh yeah, no stock to leave. What is frustrating is the 3d horizontal works just fine, which leaves me not 100% confident in 2d dynamic mill.

[Colin Gilchrist]

Different tools for different situations. I think Dynamic mill will eventually have some sort of control to reduce the corner rounding radius in tight spots. If it were me I would just create a wireframe chain and ramp contour it... Then use Dynamic mill for the rest of the pocket.

 

One thing that I've found to be very helpful in Dynamic milling is to use a custom chain for the entry. That way you get a nice helical ramp into the material that clears a great entry pocket for the tool. It keeps the tool engaged in odd shaped pockets.

[David Conigliaro CNC Software Inc.]

Colin's suggestion of reducing the toolpath radius size in tight spots is on our list of enhancemnets and improvements. We are currently working on a different issue of a higher priority.

[Josh Kinney -Elite Engineering]

"We are currently working on a different issue of a higher priority."

 

Like MTM?

[mayday]

We use Surfcam to do dynamic milling

They have got it nailed down

[cunder]

Create a line down the center of the slot. Use peel mill. rough offset 0, rounding radius .001 stepover .0005, set slot at center and width .128.

This may get You what You are looking for.

[Goldorak]

quote:

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"We are currently working on a different issue of a higher priority."

 

Like MTM?

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i think of dept of cut and incremental feed plane that don't work with dynamic mill will be address before corner rounding

[mayday]

quote:

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i think of dept of cut and incremental feed plane that don't work with dynamic mill will be address before corner rounding

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Why?

dynamic mill's alogrythem dosn't function properly. A major fault with MC and its new enhancements. throw somthing new out there thats not properly tested and fully functional but sell it on the fact its there

as soon as dynamic mill sees a tighter area it stays away fom it instead of altering the toolpath for proper fit, which makes it useless for complex pockets

[Colin Gilchrist]

Speak for yourself Mayday. I use Dynamic Milling almost daily, on some pretty complex shapes.

 

Personally I'm not a fan of trying to cut a .128 wide slot with a .125 tool.

 

I think you are misleading people when you say the algorithm doesn't function properly. It functions just fine. It just doesn't do that well with tight spaces. So it needs to be refined, which is happening.

[mayday]

quote:

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So it needs to be refined, which is happening.

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my point exactly

why throw it out when it's not ready. more work arounds.It also needs to be supported in 3d apps cause the 3d hs paths fail in that area

[MotorCityMinion]

"Create a line down the center of the slot. Use peel mill. rough offset 0, rounding radius .001 stepover .0005, set slot at center and width .128.

This may get You what You are looking for."

 

Don't even try this, there is no wiggle room. It's been covered.

 

Captain Morgan, Marlboro, MCX4 with Moldplus, SW, and Surfcam. It it wasn't so far away, I'd be asking for directions.