DESIGNITUDLE

HOW TO PLAY

Every day there’s a brand-new engineering drawing. Model the part in the workshop, then send it to inspection. You get six checks.

1 · READ THE PRINT

• Third-angle projection: TOP sits above FRONT, RIGHT sits to the right of FRONT.
• Every number is an ordinate: a distance from the datum corner (0, 0, 0) at the front-left-bottom. X runs right, Y runs back, Z runs up.
• Solid lines are visible edges, dashed lines are hidden edges, red chain lines are centerlines. Holes, bosses and slots are tagged and listed in the round-features table.

2 · SKETCH

• Start 2D Sketch, then click an origin plane (XZ Front, XY Top, YZ Right) or any flat face of your part. Finish the sketch, then extrude it.
• Use the view cube (top right of the 3D view): click a face, edge or corner to look from there, drag it to orbit, ⌂ for home.
• Draw with R rectangle, C circle, L line (click the first point to close), S slot. V selects, Del deletes, Esc cancels.
• To reshape a profile, select it (V) and drag its blue handles. Rectangles have corner and edge handles, circles a rim handle, slots end and width handles, polygons a corner handle, and line profiles a handle on every point. Handles snap to the grid and to other points.
• Type exact numbers any time: start typing and the number bar takes the coordinates or size. Tab moves between fields, Enter places it. Select a profile to change its numbers.
• Made a mistake? ↶ Undo or Ctrl/⌘+Z. Overlapping profiles merge; a profile fully inside another becomes a hole.

3 · BUILD FEATURES

• Extrude: Join adds material, Cut removes it, by a distance, symmetric, or through all. Drag the yellow arrow in 3D or use the slider.
• Revolve: draw half a profile beside an axis and spin it 360°. Shafts, pulleys, knobs.
• Hole: click a face, drop centers, then pick simple, counterbore, countersink, or a tapped thread size (M3–M24).
• Coil: springs, set by axis, ⌀, wire ⌀, pitch and turns. Thread: click a shaft or hole to add a thread callout.
• Fillet and Chamfer: click edges in 3D (straight edges or the rim of a hole or boss), then set the size. Outside corners get rounded or cut off, inside corners get filled.
• Pattern and Mirror: repeat a hole or pocket in a grid, around a bolt circle, or across a plane.
• Sketch extras: G polygon (type across-flats for hexes) and a corner radius on any rectangle.
• Features rebuild top to bottom, like the browser tree in Inventor or SolidWorks.

4 · INSPECT

• ENV overall size. FRONT / TOP / RIGHT whether your part draws the same lines in that view. VOL material volume.
• All greens passes. Parts with threads get a sixth tile, THREAD, that checks the callouts. Red marks on the print show where your lines are off.
• Monday’s part is the easiest. Sunday’s is the hardest.
• New to CAD? Pick a Training lesson (T01–T14) from the menu. A tutorial sits above the workshop and walks you through every step. Each step ticks off by itself once your part matches it.
• After each drawing, open the step-by-step solution to see how the part is modeled feature by feature and where every number comes from on the print.
• The timer starts when you start your first sketch and stops when inspection ends. It pauses while the tab is in the background.

YOUR STATS

CHECKS TO PASS

Saved in this browser. Only daily drawings count.