Closed LoopClosed Loop Programming using

the STEP-NCthe STEP-NC Explorer

Demo 2

STEP Tools, Inc.14 First Street, Troy, NY 12180, y,

(518) 687-2848 / (518) 687-4420 faxhttp://www.steptools.com

STEP Tools, Inc.Demo 2

• Closed Loop demo 1 shows how to read measurements and adjust setups.

• Demo 2 shows how to add compensation workingsteps to a STEP-NC data set.

DefineDefine compensations using STEP-NC

Machine

Define tool paths using

CAM

Define Workpieces using CAD

CNCCAD CAMSTEP STEP-NC

Slide 2© Copyright 2009 — STEP Tools, Inc.

STEP Tools, Inc.Define a frame

• A frame measures part of the machine against three datum’s.

– First we add a Frame Definition workingstep to the program» Give it a name» Pick three faces on the part

– Second we put the workingstep in the correct location» Move it down to the correct point in the sequence

Slide 3© Copyright 2009 — STEP Tools, Inc.

STEP Tools, Inc.Load the demo_2 data set

Slide 4© Copyright 2009 — STEP Tools, Inc.

STEP Tools, Inc.Pick the first setup

Slide 5© Copyright 2009 — STEP Tools, Inc.

STEP Tools, Inc.Unlock the editor and pick insert frame

Unlock

Slide 6© Copyright 2009 — STEP Tools, Inc.

STEP Tools, Inc.Pick three faces (top, front and right)

Slide 7© Copyright 2009 — STEP Tools, Inc.

STEP Tools, Inc.Pick move item down to move it down

Slide 8© Copyright 2009 — STEP Tools, Inc.

STEP Tools, Inc.Keep moving until it is at the end of the setup

Slide 9© Copyright 2009 — STEP Tools, Inc.

STEP Tools, Inc.Define a compensation

• A compensation uses a frame to define the new location of a part

– Pick the workpiece model that is going to be measured» Select the second setup» Select the as-is model (before machining)

– Insert a compensation workingstep» Give the step a name» Pick three faces on the workpiece

Slide 10© Copyright 2009 — STEP Tools, Inc.

STEP Tools, Inc.Pick the second setup

Slide 11© Copyright 2009 — STEP Tools, Inc.

STEP Tools, Inc.Turn Raw on and Finished off

Slide 12© Copyright 2009 — STEP Tools, Inc.

STEP Tools, Inc.Rotate so that you can see three datum’s

Slide 13© Copyright 2009 — STEP Tools, Inc.

STEP Tools, Inc.Pick Edit and Insert Compensation

Slide 14© Copyright 2009 — STEP Tools, Inc.

STEP Tools, Inc.Pick the three faces in the order they will be measured

Slide 15© Copyright 2009 — STEP Tools, Inc.

STEP Tools, Inc.Congratulations you have made demo 2 into demo 1into demo 1

Slide 16© Copyright 2009 — STEP Tools, Inc.