# Presentation: 689206

## Eastec DemonstrationWalkthru 

**Martin Hardwick**
**David Loffredo **
- _[info@steptools.com](mailto:info@steptools.com)_
**STEP****-NC Manufacturing Center**
**Watervliet Arsenal, Building 20**
**Metal Processing Manufacturing Division**
**Watervliet, New York 12189**
**(518) 687-2848 / (518) 687-4420 fax**
**http://www.steptools.com**

## Eastec demonstration walkthru

**Stage 0**
- Export Part model from UGS NX
**Stage 1**
- Roughing operation from UGS NX
**Stage 2**
- Probing operation from Mastercam
**Stage 3**
- Probing results from DMG
**Stage 4**
- CNC Tool diameter compensation
**Stage 5**
- Finish operation from Mastercam

## Stage 0 – Export part model

**Export model as STEP AP-203 CAD file**
**Read model into compositor**

**UGS**

**Compositor**

**Compose**
**data for CNC**

**AP-203**

**AP-203**

**testpiece.stp**

## Model in UGS (Pratt and Whitney test part)

## Header of STEP File

**testpiece.stp**

## STEP File in compositor

**We are going to machine this boss**

## Stage 1 – Export Roughing operation

**Tool paths in UGS NX**
**AP-238 CC1 file containing the tool paths**
**AP-238 CC1 added to AP-203 in Compositor**
**AP-238 CC2 sent to the Converter for machining**

**UGS**

**Compositor**

**AP-238 CC1**

**Converter**
**on CNC**

**AP-238 CC2**

**AP-203**

## Toolpaths in UGS NX

## Header of AP-238 CC1 STEP File

**stage 1.stp**

## AP-238 CC1 file added to Compositor

## Siemens codes generated by the converter

**stage1.mpf**

## Stage 2 – Export probing operation

**Probing operation in Mastercam**
**AP-238 CC1 file exported from Mastercam**
**AP-238 CC1 file in Compositor**
**Siemens codes**

**Mastercam**

**Compositor**

**AP-238 CC1**

**Converter**
**on CNC**

**AP-238 CC2**

**AP-203**

## Probe data in Mastercam

## AP-238 CC1 Probe file

**stage 2.stp**

## Probe data in compositor

## Siemens code generated by converter

**stage2.mpf**

## Stage 3 – Read probe results into compositor 

**Probe results as produced on DMG machine**
**Probe results merged into the AP-238 CC2 file**

**Compositor**

**Converter**
**on CNC**

**AP-238 CC2**

**AP-238 CC2**

**probelog.txt**

## Probe results produced on the DMG

**probelog.txt**

**DMG machine uses metric units**
**Pratt and Whitney test part uses inches**
**Converter converts between the units**

## AP-238 CC1 probe results

**stage 3.stp**

**In “stage 2.stp” entity 177 has a NULL initial value**

## Stage 4

**Set value of compensation register**
**We could decide this in a CAM and send new toolpaths**
**We could decide this in the converter using a STEP-NC expression**
**Instead we let the operator set the value using a window in the compositor**
**Value sent as a STEP-NC register assignment**

**Compositor**

**Converter**
**on CNC**

**AP-238 CC1**

**Operator**

## AP-238 CC1 file sent to the converter

**stage 4.stp**

## Stage 5 – Final finish using compensation

**Mastercam with cutter compensation**
**AP-238 CC1 data with cutter compensation**
**Siemens codes generated by converter**

**Mastercam**

**Compositor**

**AP-238 CC1**

**Converter**
**on CNC**

**AP-238 CC1**

## Mastercam data

## AP-238 CC1 file with cutter compensation

**stage 5.stp**

**Surface normal describes left or right**

## CC1 tool path in compositor

## Siemens codes

**stage5.mpf**

## Final assembly

**We can assemble a STEP file to record all the operations executed on the machine**
**UGS NX data for the roughing**
**Mastercam data for the probing**
**DMG probe results**
**Cutter compensation assignment**
**Mastercam data for the final finish**

**Compositor**

**AP-238 CC2**

## Final assembly data in compositor

## AP-238 CC2 data for final assembly

**final assembly.stp**

## More information

**See **