rotary axis gouge

[kkominiarek]

file on cadcams ftp site.....del-op3.mcx

ftp site

 

the cutter gouges into the material at 2 corners.

i can't figure out why.

 

if anyone has time to take a peek i would be grateful.

[kkominiarek]

link may not work.....but file is there.

[crazy^millman]

Ken I would approach this with a curve 5axis toolpath. I would use the same chain, just change the output to 4 axis and then use to point and the origin as that point. Can give you a file if not sure how to approach it. If you do not have 5ax module not sure what to tell you since what you did with the axis sub looks right.

 

HTH

[JDowe]

Dont know why but if you rotate the part

so that the small end is parallel to the

y axis the gouge moves to the other end

ie; the end that is not parallel to the

y axis gouges when the path is generated

creating some other geometry it turns out

that the greater the angle from the axis

the bigger the gouge

[JDowe]

OOPS should have been parallel to the Z axis

[Guest]

check out DEL-OP3_JMP.mcx I did an axis substitution. I unrolled your slot, cut it flat and then used axis sub to roll it back up.

[kkominiarek]

jp i will chk out later today....i'm back from vacation.....trying to get back in the programming

swing.

[kkominiarek]

jp...that looks like what i need thanks.

 

but how do i do it....unroll the geo?

 

i'm trying and it's not working?...i'm using the rolldie c-hook......any further guidance will be appreciated.

[Guest]

See if this helps to explain

 

[kkominiarek]

i followed your diagram......unrolled geo does not

get created.

 

i went thru it 4x.....no unrolled geo created.

(not on a different level either)

 

what am i missing??

[Kannon]

quote:

---

what am i missing??

---

What construction plane are you in?

[kkominiarek]

same as jp.....wcs=top, cplane=top

 

i tried 2d & 3d also.

[Kannon]

which axis are you unrolling around?

[kkominiarek]

axis substitution

substitute X axis

CW

[kkominiarek]

my steps....

mill toolpaths

contour

chain geo (blue geo in jp's picture)

rotary axis

axis sub...sub X axis...CW...rot dia 605.8

 

i try both unroll as well as no unroll, neither produces correct results

 

active level = 210

color = 14

[Guest]

You first need to unroll the curved geometry

 

Xform >> roll

 

Chhoose the 3D chain you wish to unroll, click unroll, click the axis you wish to unroll about.

 

After the geometry is then flat, then do a simple 2D contour, in the Rotary button, click on axis substitution and set all the cutting parameters there.

[Teh Bear without Brains kinda idiot]

Your original toolpath is OK

Backplot is bugging

Make verify with translucent to see ,that i am right

[kkominiarek]

quote:

---

You first need to unroll the curved geometry

 

Xform >> roll

 

---

xform ...unroll, this was the key i needed.

 

but!!!.....now when i code my file my code and clearance moves are out of whack.

 

my code was mostly z & b moves and clearances were posted as i set them. z moves matched the model file. (this is good)

 

now my code is mostly y & b moves and my clearance moves have 302.9mm added to them. nothing matches my model file.

 

path looks good but but not in right place.

 

do i have to adjust my planes either on operation parameter page or toolplane or c-plane?