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Bending Data Format LRA to CNC

07/21/2009 6:30 AM

We recently installed and have in operation a new CNC tube bender. The machine uses XYZ and or YBC coordinate bending data. We have alot of prints that have the bend data in LRA (Length, Rotation, Angle) format. I'm trying to figure out how to convert the LRA data into XYZ or YBC. Is there a site may offer free conversion software or is there a formula?

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#1

Re: Bending Data Format LRA to CNC

07/21/2009 9:19 AM

http://www.tubenet.org.uk/technical/addison_m.html

The above site may be of some help.

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#2
In reply to #1

Re: Bending Data Format LRA to CNC

07/21/2009 12:19 PM

Thanks for the input, the information was very helpful and answered my questions. The machine in question just happened to be an Addison McKee bender.

Thanks again.

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#3

Re: Bending Data Format LRA to CNC

07/30/2009 10:15 AM

Just a thought.... considering you just bought a new bender from Addison Mckee, I would put the problem to them for a solution. Make them work for you.

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#4

Re: Bending Data Format LRA to CNC

07/03/2017 9:37 AM

LRA data converts directly to YBC.

Y = Length

B = Rotation

C = Bend Angle

YBC is a traditional way of designating the three major axes on a CNC draw bender like yours. The Y is a carriage motion that is the same as "Length". The B is the rotation spindle motion that is the same as "Rotation". And C is the bend arm. Different machines name the machine axes different names. The SMT bender (with our software) calls

Different machines name the machine axes different names. The SMT bender (with our CNC Bender ProControl) uses FRB = Feed Rotate Bend. Some Japanese benders use FPB (P = Plane of bend).

Be careful of some Italian benders because they use XYZ to mean LRA. (They use UVW for our XYZ coordinates.) This is also the same on the Portuguese AMOB benders.

If you ever need to convert from Bender to XYZ, then you could use our Bender to XYZ software for that task. However, I don't believe that is what you need in this case.

Michael Cone

Advanced Tubular Technologies

advancedtubular.com

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