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Add square cutouts to openGrid #130

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Add square cutouts to openGrid #130

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27 changes: 27 additions & 0 deletions openGrid/openGrid.scad
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,8 @@ Change Log:
- Like 2 openGrids back to back for rigidity in freestanding / side hung installations and double sided use
- Original Heavy design by @KYZ Design on Makerworld https://makerworld.com/en/@KYZDesign
- Implementation by sfcgeorge
- 2026-03-19
- Add square cutouts to openGrid



Expand Down Expand Up @@ -108,6 +110,14 @@ Max_Tile_Width = 8;
Max_Tile_Depth = 8;
Tile_Spacing = 5;

/*[Beta - Square Cutout]*/
//Removes a rectangular section of full grid squares. Coordinates are zero-based from the top-left tile.
Enable_Square_Cutout = false;
Square_Cutout_Start_X = 0;
Square_Cutout_Start_Y = 0;
Square_Cutout_Width = 1;
Square_Cutout_Length = 1;

adjustedStackCount = Add_Adhesive_Base ? 1 : Stack_Count;
adjustedInterfaceThickness =
Stacking_Method == "Interface Layer" ? Interface_Thickness : 0;
Expand Down Expand Up @@ -297,6 +307,7 @@ module openGrid(Board_Width, Board_Height, tileSize = 28, Tile_Thickness = 6.8,

//TODO: Modularize positioning (Outside Corners, inside corners, inside all) and holes (chamfer and screw holes)
applyTileCornerModifications(Board_Width, Board_Height, tileSize, Tile_Thickness, Screw_Mounting, Chamfers, anchor);
applySquareCutoutModifications(Board_Width, Board_Height, tileSize, Tile_Thickness);

if (Connector_Holes) {
//top and bottom connector holes
Expand Down Expand Up @@ -458,6 +469,22 @@ module openGrid(Board_Width, Board_Height, tileSize = 28, Tile_Thickness = 6.8,
}
}

module applySquareCutoutModifications(Board_Width, Board_Height, tileSize = 28, Tile_Thickness = 6.8) {
cutout_start_x = max(0, Square_Cutout_Start_X);
cutout_start_y = max(0, Square_Cutout_Start_Y);
cutout_width = min(max(0, Square_Cutout_Width), max(0, Board_Width - cutout_start_x));
cutout_length = min(max(0, Square_Cutout_Length), max(0, Board_Height - cutout_start_y));

if (Enable_Square_Cutout && cutout_width > 0 && cutout_length > 0)
tag("remove")
translate([
-Board_Width * tileSize / 2 + (cutout_start_x + cutout_width / 2) * tileSize,
Board_Height * tileSize / 2 - (cutout_start_y + cutout_length / 2) * tileSize,
Tile_Thickness / 2
])
cuboid([cutout_width * tileSize, cutout_length * tileSize, Tile_Thickness + 0.02], anchor=CENTER);
}

module applyTileCornerModifications(Board_Width, Board_Height, tileSize = 28, Tile_Thickness = 6.8, Screw_Mounting = "None", Chamfers = "None", anchor = CENTER) {
Intersection_Distance = 4.2;
tileChamfer = sqrt(Intersection_Distance ^ 2 * 2);
Expand Down