Tough questions. I need to ponder on these a while.

What control are you running?

Does the control support the Fanuc style G45 and G46 tool offset codes as
well as the more common G43? The G43 would be used for the offset from the
centerline of the horizontally mounted cutting tool to Z home. The G45 could
be used for the length offset measured from the spindle centerline to the
tip of the cutting tool.

Do your canned cycles support multiple parallel planes, i.e.

 G17 G81 X0.0 Y0.0 Z1.25 R.1 F10.0 (TOP, XY_PLANE)
 G17 G81 X0.0 Y0.0 W1.25 R.1 F10.0 (BOTTOM, OPPOSITE XY_PLANE)
 G18 G81 X0.0 Z0.0 Y1.25 R.1 F10.0 (FRONT, XZ_PLANE)
 G18 G81 X0.0 Z0.0 V1.25 R.1 F10.0 (BACK, OPPOSITE XZ_PLANE)� 
 G19 G81 Y0.0 Z0.0 X1.25 R.1 F10.0 (RIGHT, YZ_PLANE)
 G19 G81 Y0.0 Z0.0 U1.25 R.1 F10.0 (LEFT, OPPOSITE YZ_PLANE)

If so, you need to know the specific syntax (this can vary depending on
parameter settings) for your machine.

==================================================
 Fred Lauzus, CAM Programming Coordinator
 High Steel Structures, Incorporated
 mailto:[EMAIL PROTECTED] http://www.highsteel.com
==================================================
 



-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
Sent: Thursday, November 06, 2003 9:02 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: RE: [mfg-smartcam] FW: right angle programming
Importance: High


Fred (and group),

What about the instances when machining will be done on the back of a block
or the left side of a block, where the drilling motion is opposite to the
"normal" XZ or YZ planes?

The other issue is activating another offset for the tool length. The right
angle head needs a Z length offset (from the centerline of the horizontally
mounted cutting tool to Z home,) and a length offset measured from the
spindle centerline to the tip of the cutting tool.

Any comments or suggestions would be appreciated.

Chris Kocourek
Tool Designer
FLEXTRONICS CTC

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Thursday, September 18, 2003 7:27 AM
To: [EMAIL PROTECTED]
Subject: RE: [mfg-smartcam] FW: right angle programming



A method I've used in the past was to treat the 90� head as a 4th axis and
build the toolpath on the XZ_PLANE tool plane. The machine define file (SMF)
of the code generator is modified to support A axis indexing (question
292=1). The machine template file (TMP) of the code generator is then
structured to output the inverted coordinates in the template file.

for example:

@RAP
< #MOV>< X#XPOS>#IF(#INDXA=270)<< Y#ZPOS>< Z#YPOS>>#ELSE<< Y#YPOS>< Z#ZPOS>>

You would need to add this type of logic to all template sections.

In your example you're drilling all 4 sides which would require both the A
(G18 sides)and B (G19 sides) axis set up in the SMF file

I have not tried this logic, but as long as all your work planes share a
common origin it should work:

@RAP
#IF(#INDXA=270,#OR#INDXA=90)<
< #MOV>< X#XPOS>< Y#ZPOS>< Z#YPOS>>#ELSE<
#IF(#INDXB=270,#OR#INDXB=90)<
<#MOV>< X#ZPOS>< Y#XPOS>< Z#XPOS>>#ELSE<
< #MOV>< X#XPOS>< Y#YPOS>< Z#ZPOS>>
>

You would need to add this type of logic to all template sections.




==================================================
 Fred Lauzus, CAM Programming Coordinator
 High Steel Structures, Incorporated
 mailto:[EMAIL PROTECTED] http://www.highsteel.com
==================================================
 


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Wednesday, September 17, 2003 2:45 PM
To: [EMAIL PROTECTED]
Subject: [mfg-smartcam] FW: right angle programming


Hi all,

I sent this on the 10th, but never saw it come up in the forum. Did anyone
else receive it? Next, can anyone help with my questions in my original
post? The attached zip file contains an R12 .dxf drawing I drew.

Chris


-----Original Message-----
From: Chris Kocourek 
Sent: Wednesday, September 10, 2003 10:46 AM
To: 'Smartcam Forum (E-mail)'
Subject: right angle programming


Hi all,

My company purchased a right angle head attachment, and we are now figuring
out how to program it. Attached is a crude drawing I made to illustrate
programming on different workplanes, at least how I see it.

- Is my drawing correct, or should I approach programming the 4 sides in a
different manner?

- How do I set up my workplanes and tmp file to produce correct code?

- Will tool motion/direction display correctly in Showcut?



As always, thanks for any help or advice you can provide.

Regards,

Chris Kocourek
Tool Designer
FLEXTRONICS CTC

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