lathe surface

[ROB]

is it possible to mill od surface on lathe

no y axis?

surface has 2 angles back of part closer to the chuck.

did seach and found nothing.

any input will be apreciated.

this is for a puma300 caxis 21i control.

 

i don't have acces to the ftp site.

 

mill3 lathe1 combined.

[Todd84]

Yes it is possible to do it on that machine. I have a puma230. The easy way is to roll/unroll. Send me the part and I will look at it.

[crazy^millman]

Best way is to use the cycle the machine has.

 

G112 or G121 or G117 depending on the machine.

 

HTH

[ROB]

it uses G7.1 but i canot make it to work on

mastercam i try differernt paths and nothing worked, cutter paths go sideways not in the right place.

try different toolplanes and, nada!

[crazy^millman]

Have you set it up like it says from the post??

 

code:

---

#NOTICE: View number 3 always indicates the location for C zero.  Milling

# with a turret below the centerline indicates C at 180 degrees.

#

#Mill canned cycles:

#Cylindrical interpolation, G107 canned cycle:

# Cylindrical interpolation is created with axis substitution only.

# Use the Caxis/C_axis Contour toolpath. Create the geometry from

# view number 4 if the rotation of C axis is CCW. This prevents producing

# a mirror image. Wrapped and unwrapped geometry are broken and arcs are

# lost so it is better to create flattened geometry. Set the parameters

# in Rotary Axis not to 'unroll' and set the correct diameter.

# Use View number 3 as the C0 location. Set mi4 to activate!

#

#Polar interpolation, G112 canned cycle:

# Polar interpolation is active only for face cutting (Right or Left).

# Use the Caxis/Face Contour toolpath. Create geometry for the lead in

# and lead out with the start and end position on the View number 3 tool

# axis. All paths must start and end at the 'C0'location for output to

# be correct. Chain the entire geometry without using Mastercam leads.

# Set mi4 to activate!

#

 

 

#Axis substitution:

# View number 3 is the C zero location on the part and corresponds to the

# Y zero position of the "Mill Reference View". Positions are wrapped

# from and to the diameter of the part as CCW for the Y positive direction.

# If geometry is drawn from View number 4 (Bottom), it is correct for the

# wrap/unwrap on the diameter. The radius of the specified diameter is

# added to the Z position in the post. The Y axis is the only axis to

# be converted with mill/turn.

#

#Simultaneous 4 Axis (11 gcode):

# Full 4 axis toolpaths can be generated from various toolpaths under the

# 'multi-axis' selection (i.e. Rotary 4 axis). All 5 axis paths are

# converted to 4 axis paths where only the angle about the rotation axis

# is resolved. Use View number 3 for the toolplane with all 'multi-axis'.

# 4 and 5 axis toolpaths are converted assuming cross machining only!

#

#Y axis output and machining over part center:

# Output Y axis motion by setting 'Rotary axis/Y axis' in the NC

# parameter page. This requires a valid Axis Combination in your machine defintion.

# y_axis_mch is set from the axis combination.

# Set 'Rotary axis/Y axis' in a machine with no Y axis (y_axis_mch = 0)

# to force linear/circular position moves in the XZ plane (g18).

# This allows machining over the part center.

#Caution: The machining must stay in the XZ plane at a Y fixed value

# when y_axis_mch = zero because no C (other than the Tplane) or

# Y positions are output!!! This occurs when selecting C_axis/Cross

# Contour without 'y_axis_mch'. Use Mill toolpaths for cross profiling.

#

#NOTICE: Milling through the part center with a linear move requires the

# geometry be broken at the centerline. Milling through the part

# center with an arc move in the G18 plane, no Y axis and on the

# negative side of X, reverses only the arc direction and I sign.

#

---

[ROB]

crazy.

 

yes i read it and follow everything but says nothing about 3d surfaces w/no y axis.

try projecting also.

dont know if there is a simple way to roll/unroll

surfaces when you dont have a true dia.

 

id don't have acces to the ftp but,

if you or any body will like to take a look at the part i can email.

 

 

thanks for the responses.

[crazy^millman]

My email is on my profile. I can take a look I will also put on the FTP for others to look at.

 

HTH

[crazy^millman]

I put this file on the FTP it is called 25-119977-2001_ABACKSURFACES.MCX and it is in the MACMX2 Folder.

[Dan@home]

Rob, what version are you using?

[Dan@home]

In lathe tool paths, select mill/surface finish/finish parallel tool path. Select surfaces ext. Make sure you are in the Right Side Planes, and the Rotary Axis/is set to the C axis.

 

Dan.

[ROB]

danbo.

 

i'm running mcx2 mill3 lathe2 combo.

btw if i select right side plane anc c axis

it will cut at the front, need to cut at the od closer to the chuck.

[Dan@home]

I Have questions but, I have to go to work right now, Sorry..

 

Dan.

 

PS, why is your WCS not on top plane?

[Dan@home]

You have mail, I think this is what you are looking for. I don't get to use this forum at work. We're not hooked to the Internet. So it's weekends, mornings and after work at home.

 

Dan.

[ROB]

danbo

thanks that is exactly wat i was looking for.

have a nice weekend.

[Dan@home]