Difference between revisions of "Nesting"

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The process of efficiently positioning plate parts in a standard dimension sheet called nest.
 
The process of efficiently positioning plate parts in a standard dimension sheet called nest.
 
Distance between parts and nest edge is 20mm. Nesting must be done in such way to reduce material waste.
 
Distance between parts and nest edge is 20mm. Nesting must be done in such way to reduce material waste.
 +
'''
 +
Before starting'''
 +
 +
*Check project: ShipConstructor » Check  3D Unit DWG and Structure DWGs
 +
*Delete all files from the Nestprts folder
 +
 +
'''Rules'''
 +
 +
*Plate name is ‘PLXX’, thickness in 2 digits    example: ‘PL06’
 +
*Add callibration plate – in every nest except MDF
 +
*Plate margin 20mm
 +
*Nest gap 20mm
 +
*Nest form- and bending parts  together (insert them first by selecting these parts in the plate insert menu)
 +
*When a plate is not full then nest the parts in the left side and/or lower left corner
 +
*Arranging nest lay outs in drawing:
 +
**5 layouts in a row
 +
**Horizontal distance between layouts 500
 +
**Vertical distance between layouts 1000
 +
*Nesting procedure
 +
*In exceptional situations the margin/gap may be reduced by maximum 5mm, add the ‘Tight Nesting’ warning block to the nest.
 +
 +
'''Nesting steps'''
  
−
Nesting steps:
 
 
*01.Set up nest template: ShipConstructor/navigator/templates/Nest01:units:mm, text style : KP arial narrow
 
*01.Set up nest template: ShipConstructor/navigator/templates/Nest01:units:mm, text style : KP arial narrow
−
*02.Check stock plate in manager
+
*02.Check stock plate in manager.
 
*03.Create the Nest files.
 
*03.Create the Nest files.
−
*04.In every nest file insert nest plate.0,0 insertion point. In general are 5 nest in a row with distance 500mm.Second row 1000 mm under.
+
*04.In every nest file insert nest plate.0,0 insertion point.
 
*05.Insert the parts: array individually.
 
*05.Insert the parts: array individually.
−
*06.Nest the parts: first the big plates starting lower left corner.
+
*06.Nest the parts.
 
*07.When nest is done assign the parts to the nest.
 
*07.When nest is done assign the parts to the nest.
 
*08.Nest/Check collision.Rearenge parts if necessary.
 
*08.Nest/Check collision.Rearenge parts if necessary.
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*12.Navigator/Unit/check nests. If '''OK''' you get an overview of all nests and at the end the message :0'' parts remain unnested!''.
 
*12.Navigator/Unit/check nests. If '''OK''' you get an overview of all nests and at the end the message :0'' parts remain unnested!''.
 
*13.Empty Nesprt folder.
 
*13.Empty Nesprt folder.
−
 
  
 
If after Navigator/Unit/check nests you get results for some or all nets with text : parts moved to REV layer,than the steps are:
 
If after Navigator/Unit/check nests you get results for some or all nets with text : parts moved to REV layer,than the steps are:
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*04.Nest/Reinsert parts.
 
*04.Nest/Reinsert parts.
 
*05.Insert remaining parts if existing and nest them.
 
*05.Insert remaining parts if existing and nest them.
−
*06.Nest/Check colision.Rearenge if necessary.
+
*06.Nest/Check collision.Rearenge if necessary.
 
*07.Assign to nest
 
*07.Assign to nest
 
*08.Update nest and BOM.
 
*08.Update nest and BOM.
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*03.Assign to nest.
 
*03.Assign to nest.
 
*04.Update nest and BOM.
 
*04.Update nest and BOM.
 +
 +
'''Guidelines'''
 +
 +
*Nest the biggest parts first, the smallest last
 +
*Nest rectangular parts together and curved parts together
 +
*Use the smallest possible sheet for parts >15mm thickness
 +
 +
''Note'': if several sheet dimensions are used in one nest drawing, it can be useful to draw a temporary rectangle for the sheet instead of inserting a new nest. But '''NEVER COPY''' a rectangle from an existing nest and '''NEVER DRAW''' the rectangle '''INSIDE''' an existing nest since this will give conflicts with the database 
 +
 +
'''Check'''
 +
 +
*Check if all parts are nested (SC Nesting » Part » Insert  deselect Same stock as plate)
 +
*Collision check (especially after re-nesting parts)
 +
*Marking of bending and forming parts in BOM
 +
*Grouping of bending and forming parts
 +
*Presence of callibration part in every nest
 +
*Not full nested plates: parts are nested in left side/lower left corner of plate?
 +
*Run ‘Check’  for every nest
 +
  
 
[[Category:Marine Engineering]] [[Category:ShipConstructor]]
 
[[Category:Marine Engineering]] [[Category:ShipConstructor]]

Revision as of 09:42, 5 June 2009

The process of efficiently positioning plate parts in a standard dimension sheet called nest. Distance between parts and nest edge is 20mm. Nesting must be done in such way to reduce material waste. Before starting

  • Check project: ShipConstructor » Check 3D Unit DWG and Structure DWGs
  • Delete all files from the Nestprts folder

Rules

  • Plate name is ‘PLXX’, thickness in 2 digits example: ‘PL06’
  • Add callibration plate – in every nest except MDF
  • Plate margin 20mm
  • Nest gap 20mm
  • Nest form- and bending parts together (insert them first by selecting these parts in the plate insert menu)
  • When a plate is not full then nest the parts in the left side and/or lower left corner
  • Arranging nest lay outs in drawing:
    • 5 layouts in a row
    • Horizontal distance between layouts 500
    • Vertical distance between layouts 1000
  • Nesting procedure
  • In exceptional situations the margin/gap may be reduced by maximum 5mm, add the ‘Tight Nesting’ warning block to the nest.

Nesting steps

  • 01.Set up nest template: ShipConstructor/navigator/templates/Nest01:units:mm, text style : KP arial narrow
  • 02.Check stock plate in manager.
  • 03.Create the Nest files.
  • 04.In every nest file insert nest plate.0,0 insertion point.
  • 05.Insert the parts: array individually.
  • 06.Nest the parts.
  • 07.When nest is done assign the parts to the nest.
  • 08.Nest/Check collision.Rearenge parts if necessary.
  • 09.Update nest and BOM.
  • 10.Add a calibration plates in every nest using tool pallete.
  • 11.Delete content of Nestprt from project folder folder after every check nest.
  • 12.Navigator/Unit/check nests. If OK you get an overview of all nests and at the end the message :0 parts remain unnested!.
  • 13.Empty Nesprt folder.

If after Navigator/Unit/check nests you get results for some or all nets with text : parts moved to REV layer,than the steps are:

  • 01.Delete content of Nestprt folder
  • 02.Open only nest file where are problems.
  • 03.Nest/Check nests
  • 04.Nest/Reinsert parts.
  • 05.Insert remaining parts if existing and nest them.
  • 06.Nest/Check collision.Rearenge if necessary.
  • 07.Assign to nest
  • 08.Update nest and BOM.
  • 09.Navigator/Unit/check nests. If OK you get the message :0 parts remain unnested!.

If the nest is ready and still 1 or 2 parts were modified and you now the thickness and name of the parts than:

  • 01.Delete content of Nestprt folder
  • 02.Nest/part list/ find the part/ select it and than Nest/ part/Reinsert.
  • 03.Assign to nest.
  • 04.Update nest and BOM.

Guidelines

  • Nest the biggest parts first, the smallest last
  • Nest rectangular parts together and curved parts together
  • Use the smallest possible sheet for parts >15mm thickness

Note: if several sheet dimensions are used in one nest drawing, it can be useful to draw a temporary rectangle for the sheet instead of inserting a new nest. But NEVER COPY a rectangle from an existing nest and NEVER DRAW the rectangle INSIDE an existing nest since this will give conflicts with the database

Check

  • Check if all parts are nested (SC Nesting » Part » Insert deselect Same stock as plate)
  • Collision check (especially after re-nesting parts)
  • Marking of bending and forming parts in BOM
  • Grouping of bending and forming parts
  • Presence of callibration part in every nest
  • Not full nested plates: parts are nested in left side/lower left corner of plate?
  • Run ‘Check’ for every nest
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