First post in the series: ACA Ceiling Grids: The Cell Component
Previous post in the series: ACA Ceiling Grids: Anchors
AutoCAD® Architecture Ceiling Grids provide an easy way to generate a representation of the ceiling grid for an acoustical panel ceiling. And, as we have seen in previous articles in this series, they have feature that make it easy to locate and organize ceiling devices. There are occasions, such as when using 2x4 luminaires in a 2x2 ceiling grid,
In this article, we will make use of an out-of-the-box Mask Block to show how one is used. A future article will show how to create one.
The Design Tool Catalog - Imperial includes a 2x4 fluorescent luminaire Mask Block tool in Electrical > Lighting > Fluorescent, 2x4. For those using Metric units, the Design Tool Catalog - Metric has a 450x900 fluorescent luminaire Mask Block tool in Electrical Services > Fluorescent, 450x900. The images here were taken from the Imperial content. Using the tool to place the Mask Block results in what is seen in the image above. Select the Mask Block and, on the Mask Block Reference contextual ribbon tab, on the Modify panel, choose the Attach Objects tool.
Anchors can also be applied to Mask Blocks, so you can use a node anchor to keep your 2x4 luminaire locked to a node of the grid, as discussed in the previous article. Since the insertion point for this Mask Block is at a grid point, no offset is required.
Note also that, unlike copies of anchored AEC objects, copies of the Mask Block will not inherit the mask. You can, however, select multiple Mask Blocks that occur within a single Ceiling Grid and mask them all at once, so it is probably best to place all of your instances and then apply the mask for all at one time. Once masked, you can move the Mask Block around in the same grid and it will continue to mask any part of the grid that falls behind the mask.
Next post in the series: ACA Ceiling Grids: Creating a Mask Block