CNC Broaching - Incremental Spindle Orientation?

R

runninwideopen

Aluminum

Joined

Oct 31, 2014

• Feb 6, 2019

• #1

Hi all,

I don't want to start another debate about CNC broaching on a mill. There's a hundred of them already out there.

What I do need to know, is if there's a way to do incremental spindle orientation so I can loop a 20T spline without multiplying my code 20x. I tried G91 M19 P18, no cigar. Anything like that exist? Without using macros? I don't have that option. Haas VF2.

 

mhajicek

Diamond

Joined

May 11, 2017

Location

Maple Grove, MN, USA

• Feb 6, 2019

• #2

I was going to say macro, until you said no macro. I think you're up a creek.

 

R

runninwideopen

Aluminum

Joined

Oct 31, 2014

• Feb 6, 2019

• #3

I have that sinking feeling.

 

B

Booze Daily

Titanium

Joined

Sep 18, 2015

Location

Ohio

• Feb 6, 2019

• #4

My Haas has it. Maybe it depends on the year.

 

R

runninwideopen

Aluminum

Joined

Oct 31, 2014

• Feb 6, 2019

• #5

You have to pay extra for it. I have not. It's like buying a Ferrari and having to pay extra for it to shift into 5th and 6th gear.

 

3

316head

Aluminum

Joined

Jul 27, 2008

Location

finland

• Feb 6, 2019

• #6

- Indexing head or a custom-made fixture (means manual indexing, should the joy of it outweigh the cost of Macro-B option?)
- Run the program over ethernet or from a memory card so code size won't be an issue

 

U

Utry2win

Aluminum

Joined

Aug 17, 2011

Location

Lakeland, FL

• Feb 6, 2019

• #7

How big is the spline your broaching? Maybe something you can do with a rotary broach from someone like polygon solutions?

 

R

runninwideopen

Aluminum

Joined

Oct 31, 2014

• Feb 6, 2019

• #8

I just finished copying and pasting the code 20x and changing the orientation on each copy. Program size isn't a problem - it just opens up more opportunity for user error - one missed or miscalculated orientation angle and I could break my tool or hit the spindle too hard. I don't really want to buy the macro option for a 20 year old VF2. But when I buy a new machine, it will have it.

 

G

GENERALDISARRAY

Hot Rolled

Joined

Jan 3, 2019

• Feb 6, 2019

• #9

Always look on the bright side of life!

at least you have arbitrary angle orientation

 

A

alphonso

Titanium

Joined

Feb 15, 2006

Location

Republic of Texas

• Feb 8, 2019

• #10

You don't have G68 available?

 

mhajicek

Diamond

Joined

May 11, 2017

Location

Maple Grove, MN, USA

• Feb 8, 2019

• #11

alphonso said:

You don't have G68 available?

Click to expand...

I don't think that would help with spindle orientation.

 

DouglasJRizzo

Titanium

Joined

Jun 7, 2011

Location

Ramsey, NJ.

• Feb 9, 2019

• #12

Depends on Tool Builder. For Doosan we use an M150 Sxxxx for multi orient.