Shared rails, threading and junctions
Draw a four-hole button in Aquarell: pass two stitch pairs into their holes
Check a tilted disc, four-hole rectangular array and two parallel stitch pairs through rim occlusion and continuous thread direction.
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Four black dots and two lines do not establish threading. This small still life uses two parallel stitch pairs, not crossed stitches, to coordinate holes, button thickness and thread entry. Arrange the illustrative path manually in Aquarell. Keep hidden return thread in the checking sketch only; the illustration is neither sewing instruction nor a universal button construction.
Establish disc tilt and thickness
Use an approximately 1400×1400 px square with warm off-white background. Centre the button slightly low in a mild overhead view, its right side a little farther away. Draw an outer ellipse and narrow near lower wall; use grey-blue above and a darker side. Separate sketch, face, holes, thread and fabric shadow, initially without texture. Flatten the wall and retain a broad flat face if spherical. Add near-edge thickness if paper-thin rather than thickening the whole outline. Canvas size is a layout suggestion; hole spacing and edge thickness suit this invented button, not a manufacturing specification.
Give four holes one surface perspective
Place holes at the four corners of a pale guide rectangle: upper left/right and lower left/right, two rows and two columns. Tilt the array with the face and slightly narrow the far row instead of retaining a screen-aligned square. Leave enough material between holes and rim, especially at upper right. Check each centre against rows and columns, then remove guides. If it resembles four die pips, clarify intervening material and hole walls rather than inventing a fifth point. Four holes define this chosen style, not every button.
Make holes recesses rather than painted dots
Fill each opening dark blue-grey and retain a slightly lighter near inner wall, varying its width with the overhead view. Every hole need not reveal its bottom simultaneously, and four identical flat black circles are insufficient. Test a thread-free version for depth, adjusting ellipses and wall values. If rivet-like, reduce exterior highlights and bring the light edge inside the opening. Smooth broken-looking rims while retaining continuous face material. Establish holes first so thread cannot conceal a mismatched hole plane.
Connect one hole column per parallel pair
Connect upper left to lower left and upper right to lower right, forming roughly parallel groups. Each may contain two adjacent strands, all entering the same two holes rather than creating extra holes. Use soft ochre thread against grey-blue. Slightly curve it across the face while retaining each column’s direction. If groups merge into one central band, widen the column gap or narrow the strands. If accidentally crossed, reconnect labelled endpoints rather than calling a different stitch pattern completion of the chosen one.
Occlude entry points with the hole rim
Curve the thread down into each opening and hide a short end behind the near wall or rim instead of stopping flat at the black centre. Extend its hidden path in the checking sketch, showing only visible portions in the finished layer. Add a tiny contact shadow without a black halo merging hole and thread. Increase downward turn and occlusion if it looks pasted on. Check every endpoint against the original four holes if it seems to pierce elsewhere. Upper and lower entries can expose different lengths because of viewpoint and bending, but both must trace to the same column.
Use back return thread only for path checking
Keep a pale, non-exported checking layer showing how thread returns behind the button within each pair. Do not draw rear lines through its face or make the button transparent to display continuity. This hidden path is an invented simplification; actual sewing needs appropriate craft instructions. Support the disc on a grey-beige fabric plane with a slightly sharper near contact shadow, without exaggerated needle holes. If floating, correct contact rather than burying an all-around light gap in fabric fibres. An intentionally propped pose needs separate support evidence.
Use fibre marks to support thread volume
Keep a soft central light on the thread and darken turns into holes. Sparse oblique fibres should follow its length, not identical black spirals on every strand. Retain one or two soft button reflections without erasing rims. At roughly quarter size, locate all four holes separately, keep columns distinct and show thickness mainly near the front edge. Reduce hard glints and soften the line if staple-like. Remove surrounding texture and restore inner walls if holes look stained. Material follows correct routing; abundant detail does not establish threading.
Verify four holes and two groups without texture
Keep the layered native file, export a PNG and open it separately. Check an intact outer rim, four coplanar holes, two groups entering their own holes and no exported hidden return paths. If holes disappear, adjust image scale or opening contrast rather than merging two into a slot. Label this a parallel-stitch style; save a new study for crossed stitches and revise its checklist. Another reader should identify each group’s two entries, not merely a threaded disc. Fabric texture and highlights may be omitted; entry occlusion must remain.
Related tutorials and sources
Draw a keyring in Aquarell: show the ring passing through the key holes; Draw a rope knot in Aquarell: trace the continuous path before adding fibres.
Sources checked on 11 November 2026: the official Aquarell App Store listing and Apple Lookup show version 1.0.7, requiring iOS / iPadOS 15.0 or later. The drawing uses the publicly described brush, colour, layer and saving capabilities manually. Sizes, shapes and colours are practice suggestions; confirm controls against the installed version. Keep the native artwork for further editing and use PNG for previews. This batch does not claim step-by-step device testing.