GLOSSARY Academy . Reference ..................... Every word you will hear in this shop, in one place. Badges used to carry their own word lists. They live here now, together, in alphabetical order. If you hear a word in the shop that is not in here, tell us and it gets added. That is a real job and we mean it. ..................... ACCENT A small amount of a loud colour. ADHESION How well the print sticks to the plate. ARROW The direction mark on an LED strip. Data goes in at the tail. Always find it before power. BASE What the piece sits on and is fixed to. BASE COAT The main colour. BIN Your named tub. It holds work in progress, not rubbish. BLOCKED Stuck in a way you cannot get past on your own. This is when you ask. BOUNCE White card used to throw light back into shadow. BREADBOARD The reusable board with the holes. Wrong is free on a breadboard, which is why rovers live on one. BRIDGE, PRINTING A flat span printed between two supported points. BRIDGE, SOLDER Solder connecting two pads that should not be connected. Wick it off. BRIM A flat ring printed around your part to help it stick. CALIPERS The measuring tool. Digital or dial. CHAMFER An angled edge. CHIPPING Small marks imitating worn paint. CLEARANCE The deliberate gap you design in. CLOG A partial or full blockage in the nozzle. COACH Somebody who asks questions. COLD JOINT A solder joint that looks grey and crumbly. It might work today and fail next week. We fail these. COLD PULL Heating, cooling slightly, then pulling filament out to bring debris with it. CONSTRAINT A rule that stops part of your sketch moving. CONTRAST The difference between your lightest and darkest. CROP Cutting the edges of the frame. CURE Fully hardened, not just dry to touch. CUT Using a shape to remove material. DIFFUSER The milky layer that turns LED dots into glow. DIMENSION A number that fixes a size or a distance. DRIVER The chip board that turns brain signals into motor muscle. Brains point, drivers push. DRY BRUSH Almost no paint, flicked over raised edges. DRY FIT Every joint together, no glue, before any glue. DRY RUN The whole job walked through cold before the iron or the glue comes out. E STOP The emergency stop. Big, obvious, and you never need permission to hit it. ELEPHANT FOOT The first layer squashing out wider than the rest. EXTRUDE Pulling a flat shape up into a solid. FILLET A rounded edge. FIRMWARE The program a machine keeps inside itself. Atlas gets its firmware from installatlas dot com. FIRST LAYER The one that decides whether the print works. FIRST LAYER TEST A single thin square printed to check the nozzle distance. FIRST MATCH WINS The rule of rules in Mouse. The list is read top to bottom and the first rule that fits is the one that runs. FLASH Writing firmware onto a board. From the browser, no installs. Flashing never eats your badges or your levels. FLIGHT READY The shelf a rocket must be on before it flies. The tag means the full check card passed. FLUX Cleans the metal so solder will stick. It is the smoke you see. GANTRY The moving frame the head rides on. GCODE The printer instructions themselves. Just a list of moves. GRADE One step in the sanding sequence. GRIT How coarse the paper is. Lower number is rougher. GROUND The return path. Drawn as the little downward symbol. HANDS OFF The rule about other people's work and machines. Ask them. HERO SHOT The main photo. The one that sells it. HISTORY The list of steps you used, in order. HOT ZONE The part of a bench where hot things live. Nothing else goes there. JOINT Where the wire and the pad are joined. JUNCTION DOT A dot on a schematic meaning the lines join. LAY ON FACE The tool that puts a chosen face flat on the plate. LEVELLING Setting the distance between nozzle and plate. MAKE SAFE Leave a machine or a bench in a state where the next person cannot get hurt by it. MASKING Covering a part you do not want painted. MATT AND GLOSS Flat finish or shiny finish. MILLIAMPS The small unit current comes in. One LED at full white drinks about sixty of them. Multiply before you power. MOUNT The physical fixing between piece and base. NODE A point where things are connected. NOMINAL The number you designed. Not the number you get. NOSE WEIGHT Weight added to a rocket's nose to bring the balance forward. Nose leads, fins follow. OVERHANG Anything leaning out past what is under it. PAD The metal ring on the board you solder to. PALETTE The set of colours you chose. PAR The smallest rule list that can solve a Mouse level. Not an opinion. A checked fact. PARALLEL Components side by side on their own paths. PCB Printed circuit board. The board itself, with its copper roads already made. Your Atlas is built on ours. PIN A rod through both parts. The strongest simple mount. PINOUT Which leg of a chip does what. PLANE A flat surface you draw on. PLAQUE The label. PLATE The surface the print sits on. Some shops say bed. PLINTH A raised base. POLARITY Which way round it goes. Batteries and LEDs care. Resistors do not. PPE Anything you wear to protect yourself. Glasses, gloves, an apron. PREPARE The slicer tab where you set the job up. PRESS FIT Tight enough to hold with friction alone. PREVIEW The slicer tab where you check it. PRIMER The first coat. Makes paint stick and shows you your mistakes. PROCESS The slicer panel with all the settings. RAIL The long power strips down the sides of a breadboard. RAKING LIGHT A light held at a low angle to show every flaw and every bit of depth. RANGE BOSS The one voice on launch day. Argue after, on the ground. RANGE HOT, RANGE COLD Hot means nobody moves toward the pads. Cold means recovery walks may happen. RECESS A low area on the surface. REFACTOR Changing working code so it is simpler without changing what it does. Deleting a rule and still winning. REPRODUCE Make the problem happen again on purpose. Half of fixing is this. RESISTOR Limits current. Protects the LED. RUN, PAINT A drip in wet paint. SANDING BLOCK Something firm behind the paper. Keeps flats flat. SCHEMATIC The diagram. Shows connections, not layout. SCRAP Offcuts we keep because they are still useful. It is sorted, not a bin. SERIES Components one after another on the same path. SHARED KIT Anything not assigned to one bench. SHORT A path from positive straight to negative with nothing in the way. Bad. SKETCH A flat drawing you build solids from. SKIRT A loose outline printed first to prime the nozzle. SLICE Turning a model into printer instructions. SNUG The finish line for a screw in plastic. Snug, then stop. SOCK The silicone cover round the hot end. SPARSE INFILL The pattern inside a part. Other slicers just call it infill. STRAIN RELIEF Fixing a lead so a tug pulls on the case, not on your solder joints. STUCK Normal. Not a judgement. SWEEP Background paper curved up so there is no corner line. TEST PIECE A small print used to check a change without spending six hours. THREE QUARTER Angled slightly, so you see front and side. TIN A thin coat of solder, on the tip or on a wire, before the joint. TOLERANCE How far off the number a part is allowed to be. VALUE How light or dark a colour is. Matters more than the colour itself. WALL LOOPS How many shells go round the outside. WARM AND COOL Reds and yellows against blues and greens. WARPING Corners curling up off the plate as the part cools. WASH Thinned dark paint that settles in recesses. WET SANDING Sanding with water. Fine grades only. WICK Braid that soaks up solder you did not mean to put there. WIP Work in progress. A job that is not finished and is not abandoned.