layerling 1.150.0

• Stencil bridges: the middle of letters cut through a plate stays held in a printed stencil (Discussion #1438): A plate with text cut through it lost the middle of letters like o, a and b, and only the DXF and SVG export could add bridges, for a laser. Stencil bridges (Modify group of the ribbon, right-click, Ctrl+K) takes the plate with its text hole, grouped or not yet, looks at it from above as the SVG export does and gives every part lying inside a hole the same bridges as the export (stencilBridges.ts, which now also counts the parts): Bridge width (0.5 to 5 mm, 1.5 to start), Bridges per part (1 to 4), Bridge height (the plate's thickness to start) and Position for lower bridges, flush with the bottom, in the middle or flush with the top, so paint gets under them on a spray stencil. The bridges show in orange while the numbers change and become ordinary boxes grouped with the plate; a plate and text not grouped yet are grouped first, so the text cuts the plate and not the bridges. Each box carries stencilBridge, and run on that group again the tool puts new bridges in place of its own, so it still works after the text changes. A text engraved but not cut through is whole from above and gets none; nothing to hold, or no bridge that fits at the width, is said in the window (lib/stencilBridgeTool.ts, StencilBridgePanel.tsx). MCP layerling_stencil_bridges (ids, width, count, height, position). Texts in 19 languages, guide chapter 8 in 15 with its own ? anchor, the MCP table in chapter 14, quick guide, welcome page, search words, README. Kernel test on a plate with "OB" cut through: four pieces before, one after, none for engraved text, the same bridges with plate and text not grouped, and new ones in place of the old. Asked for by @MikeyDil.
• Move arrows: a red and a green arrow move the selection along X or along Y only (Discussion #1434): Dragging a body follows the point where the mouse meets the workplane, so in a low view a small move of the mouse threw it far off, and Shift only chose the axis. Beside the black lift arrow there are now a red arrow for X and a green one for Y. Pulled, the selection moves along that line only and follows the mouse along it, in a low view too: in grid steps, snapping to the edges and middles of other bodies on the flat workplane (Alt lets go), and with the move dimensions to click and type afterwards. An axis the view looks along gets no arrow, and one that would cover the lift arrow or the other arrow points the other way. The guide has them in chapters 3 and 4, in every language.
• Lid: a bayonet lid for round bodies, pushed on and turned to lock (Discussion #1424, PR #1436): A twist lock to join lamp sections or close a container had no kind in the Lid tool. Bayonet, the sixth kind, built on the screw lid, puts lugs on the outside of the body's top (they reach 0.8 mm into the wall, so it keeps its strength) and an L-shaped slot for each inside the cap's rim. Set the cap on with its slots over the lugs, push it down and turn it clockwise: a ledge in the cap lies under each lug and holds it down, a stop ends the turn, and a round rib behind each locked lug clicks so the cap does not turn back by itself. The lugs stand a fortieth of the diameter out of the wall and the turn is a third of the way to the next lug, 45° at most (40° for three lugs). Lugs (2 to 4, 3 to begin with), Rim depth (8 mm), Gap in height (0.3 mm) and Detent height (0.3 mm, 0 for none) are the settings; the gap round the lugs starts from the printer's play. Everything prints without supports. The body has to be round at the rim and down the cap's reach, with a wall of at least 0.8 mm, as for the screw lid; other bodies, too low or too thin ones are refused with a message, and magnets, hinge, click bumps and handle are off for this kind. The MCP tool takes type: bayonet, bayonetLugs, bayonetDepth, bayonetAxialGap and bayonetDetent and reports bayonet. 17 new texts in 14 languages, guide chapter 6 in 15. Asked for by @iron-bro, built by @marcus040473.
• Split: a dovetail that holds the halves together without glue (Discussion #832, PR #1437): After the dowels and plugs, a split part still needed glue or a pin to stay together. Dovetail, the fourth kind under Connectors in the Split panel, puts a tongue that widens away from the cut face on the half named with a minus, running straight across its piece of the cut face from edge to edge, and cuts the matching groove, open at both ends, into the other half. The halves slide together sideways along the tongue and cannot be pulled apart across the joint. Per cut face (0 for as many as suit), Width at the cut face (6 mm), Depth into the other half (4 mm), Flank angle (15° per side, 5° to 30°), Direction (0 runs along the long way of the cut face, -90° to 90°) and the clearance per side, from the printer's play as for the dowels, are the settings. A tongue is left out where the other half is too thin to hold its groove; the grooved half prints on its cut face without supports. It works on primitives, exact bodies and meshes and on tilted planes, in one undo step; the MCP tool takes connectors: dovetail and dovetailWidth and the other settings. New texts in 14 languages, guide chapter 6 in 15. Asked for by @makinglayerschannel, built by @marcus040473.
• Snap grid: a short middle click opens the snap menu at the pointer (Discussion #1439): The snap step could only be changed in the menu at the bottom right or with Alt+1 to Alt+0 and comma and period. A short click with the middle mouse button, without moving the mouse, now opens the same menu right where the pointer is, in the 3D editor and in a sketch, as AutoCAD opens its object snap menu there. It opens when the button is let go and stays open until a step is picked, a press lands beside it, Escape is pressed or the wheel turns outside it; in the 3D editor it carries the switch for snapping to other shapes too. Holding the middle button and dragging still moves the view, and a press in a text field is left to the field. The shortcut list and the guide name it.
• Support rib: a part with a rounded or chamfered bottom edge takes one too (Discussion #1385): Rounding the edge a tilted part stands on, so the slicer finds its first layer, ended its flat lower face a little above the plate, and the rib was refused there: the rounding is curved, and the face no longer reached the plate. The face may now stop up to 3 mm above the plate; the rib follows its plane down to the plate and its bridges begin above the rounding. Beside a 45° chamfer the flat face was even taken for part of a round wall and refused as curved: the two faces and the chamfer have their corners on one circle, as every such trapezoid has. A facet of a round wall now spans at most 60° round its axis, so the face reads as flat, for the hole pattern too. Clicking the rounding itself says to click the flat face above it.
• Twist & Lean: the twist turns about the rotation pivot when one is set (PR #1441): Twist always turned a body about the middle of its box, so a rotation pivot set under Mirror & Pattern changed nothing: a bar with its pivot on the top edge still twisted about its own centre. Now the twist turns about the vertical through the pivot, in the editor, in the export and in exact bodies, and moving the pivot rebuilds the twisted shape. Without a pivot nothing changes. Lean stays a plain shift of the top, which has no centre. By @AbhiRoutray21.
• Server designs: the count on the tab drops when a design is deleted (asked by mail): The Server tab counts every design in the server store from the listing, and deleting one took it out of the list but left the count, so "Designs (2)" stood over a single design until the page was reloaded. Deleting one design or several together now lowers the count at once.