4 axis confuse

[mig]

Hi,

This 4 axis make me crazy.

Need to machine two slots on cylinder.

From A0 this slot located on angle on -215.4 deg .

My WCS – Top X0 Y0 Z0

t/c plane -215.4 deg X0 Y0 Z0

G code output look like WCS /t/c is -215.4 deg

What am I doing wrong?

Post is Generic "Haas 4 axis"

I am using axis substitution mode.

 

 

N160 G1 Z3.0263 F40.

N170 A4.376 F45.

N180 X8.7112 Z3.0262 A4.695

N190 X8.7067 A5.004

N200 X8.6993 A5.293

N210 X8.6893 A5.555

N220 X8.677 A5.781

N230 X8.6627 A5.964

N240 X8.6469 A6.099

N250 X8.6301 A6.182

N260 X8.6127 A6.21

N270 X8.0241 Z3.0263

N280 X7.9947 Z3.0262 A6.242

N290 X7.9657 A6.337

N300 X7.9376 A6.493

N310 X7.9106 A6.709

N320 X7.8852 A6.982

N330 X7.8618 A7.308

N340 X7.8405 A7.682

N350 X7.8219 A8.099

N360 X7.806 A8.553

N370 X7.7452 Z3.0263 A10.541

[Guest]

#Axis substitution:

# Use the Rotary axis substitution by drawing the geometry flattened

# from the cylinder. The rotary axis button must be active for axis

# substitution information to be output to the NCI file. The radius of

# the rotary diameter is added to all the Z positions at output.

 

 

Your T/C plane should be Top/Top

 

Damn, I stumbled in here on a Saturday, first time in a while

[Hardmill]

quote:

---

Damn, I stumbled in here on a Saturday, first time in a while

---

HAHAHAHAHA

 

 

PEACE

[mayday]

use rolldie chook, dont know why MC hasn't taken JS's knowledge and put it into toolpaths but it will solve your problems

Edit:

BTW ignor Harm mill post's

[mig]

JP hi,

Thank you for response . I made T/c plane TOP.

Look better now .

 

I have very small experience on 4 ax in Mastercam. We not using it at work , so sorry if my questions look stupid to you .

All my knowledge of programming on 4 ax is from mastrecam tutorial book .

So look like If I going positional , I have to change T/C plane , but if I going to use substitution t/c plane stay TOP always ?

1 If it make different “rotation direction” for location of machined pattern if no what is the rule ?

2 Why i suppose to flattened pattern and can’t use 3D geometry ?

3 How quickly to verify if position of rotation is right ? only by G code ? Looks like Mastercam verification not always give me right picture (i understand why )

4 To use 5 ax swarf i need to have 5 ax machine or 4 axis is enough ?

[mig]

Mayday,

Is RollDie C-hook need 5 ax (machine,post) as well ?

[ak762]

there is a good sample shared by JMP at ftp Mastercam_forum/X3_Files/TEST -707_JMP.MCX