Cover legend and over position in the part

Top | Previous | Next

 

When generating manufacturing information (part code, name, size, and material) or linking system data to the information in the part labels, it is important to indicate which side of the part a cover is applied to and what type of cover it is. For example, the part is covered with a 2 mm edge band on the right side and 0.45 mm edge band on the left side. On the other hand, it is important to bear in mind that the part is covered with veneer on the top and with paper film on the bottom.

 

Cover legend

 

As it was mentioned, a furniture part can have one fill material workpiece covered with cover workpieces. So, the part can have several cover workpieces. To identify the workpiece, one needs to know what kind of workpiece it is and what is the position of this workpiece in relation to the part. Each cover workpiece has its own position index describing its position in relation to the part. Parts have the following cover position indexes:

 

Front
Back
Right
Left
Top
Bottom

 

For example, if you enter the following word in the BOM template {Item.CoverWorkpiece.Right.Material.colour.Code}, you will get the information about the cover workpiece colour code on the right side of the part. Using keywords, the user may obtain any information about covers generated by Woodwork for Inventor.  For more information about setting the positions-indexes, please read below.

 

After indicating the required attributes in MS Excel specification template, the relevant part cover data will be exported to these columns during BOM generation.

 

 

Left Cover

Right Cover

Front Cover

Back Cover

 

{Item.CoverWorkpiece.Left.Material.Color.Code}

 

 

{Item.CoverWorkpiece.Right.Material.Color.Code}

 

{Item.CoverWorkpiece.Front.Material.Color.Code}

 

{Item.CoverWorkpiece.Back.Material.Color.Code}

 

For more information about generating BOM templates, please read here.

 

Until now, it was possible to obtain information only about covers applied to edges matching the edges of the Surrounding Box. In other words, in case of parts that are not rectangular, specifications did not include information about the edge cover. Now, the ninth version of Woodwork for Inventor offers extended possibilities to export cover information to specifications. This means that the user can access more detailed information without risking overlooking instances in which part cover does not match the edges of the Surrounding Box.

 

Now, Woodwork for Inventor has a new keyword, i.e. Legend. Using the keyword in BOM template {Item.CoverWorkpiece.<Side Index>.Material.Legend}, the user can obtain more detailed information about the covers on the specified side.

 

The content generated by the keyword Legend can be configured and the user can specify what kind of information will be included in the specification.

 

 

Cover legend explanation

 

 

 

All covers that come into any contact or direct contact with any Surrounding Box side can be grouped as follows:

 

Coincident – coinciding with the Surrounding Box side.
Tangent – with the tangent coming into contact with the Surrounding Box side.
Point – with a point coming into contact with the Surrounding Box side.
Indirect – with other edges coming into contact with the Surrounding Box side.

 

When configuring the content generated by the keyword Legend, the user can specify the types of covers to be exported to the legend. For more information about such configuring, please read here. Once the Tangent, Point and Indirect covers are excluded from the Legend, you will get the identical situation that was prior to the issue of the ninth version of Woodwork for Inventor. In this case, only the information about coincident covers will be generated.

 

The user can also configure a template for the information generated by the Legend, where the cover information can be presented as a line combining several database fields. For example, R4573 22x0.45 line combines the colour code, Edge Banding width and thickness information.

 

 

Cover position setting

 

When generating manufacturing information (part code, name, size, and material) or linking system data to the information in the part labels, it is important to indicate which side of the part a cover is applied to and what type of cover it is. For example, the part is covered with a 2 mm edge band on the right side and 0.45 mm edge band on the left side. On the other hand, it is important to bear in mind that the part is covered with veneer on the top and with paper film on the bottom.

 

It might be important for the user to know how Woodwork for Inventor identifies part sides and how this is related to entries in specifications generated. The figure below shows how Woodwork for Inventor identifies the sides of the part.

 

Part side setting according to the person

Part side setting according to the person

 

As mentioned in the previous section, Woodwork for Inventor automatically sets the grain direction of the material during the initial material assignment process. The grain direction algorithm searches for the largest flat face, which is called Main Face or Reference Face, and the two longest edges on that face that are perpendicular to each other. The reference face is used as reference for all other calculations: when generating BOM and working in CAM module environment. If the system cannot detect a reference face, other rules are applied which allow setting the initial grain direction of the material. If the constructor is not satisfied with the reference face that has been automatically set, he/she may modify it using the Woodwork for Inventor tools, by specifying other reference plane for calculation and/or other grain vector orientation..

 

Thus, if a part is oriented with respect to the view as shown in the figure, it is considered that the Main Face or Referenace Face is pointing upward, and it is treated as a Top side. The Bottom Face is on the opposite side of the part. The red arrow shows the grain orientation to the Right. The Left is on the opposite side. The Front and the Back faces of the part are arranged respectively.

 

Part sides are always defined in terms of the geometry of the part rather than the workpiece. But the rotation of the grain direction determines which side is treated as Front, Right, etc. The image below shows how the rotation of the grain direction affects the part sides.

 

 

Texture 0 deg

Texture 15 deg

Texture 50 deg

 

 

As the grain direction is shifted to the next grain direction angle segment, the part sides change. The image shows how a minor change to the angle of the grain direction has no effect on the part sides; however, once the 45-degree angle is exceeded, the sides change.