Draw a stapler in Aquarell: give upper arm and base a shared rear hinge

A stapler combines a thick shell and narrow metal channel, making it easy to draw two parallel but disconnected blocks. Show a desktop stapler with its front slightly open and a clear rear connection, using paper only for scale and occlusion. Build upper arm, base and shared hinge manually in Aquarell without firing, disassembly or internal-spring diagrams. The aim is a readable exterior, not an assessment of real operation.

Establish the base and front-to-back direction

Use an approximately 1800×1400 px landscape canvas with a pale blue-grey background. Put the rear upper left and front lower right. Draw the long narrow base top and a little near-side thickness, keeping its bottom on the tabletop rather than lifting with the upper arm. Separate sketch, base, upper arm, metal channel, paper and shadow. Omit buttons, branding and staples. Check lower edges against the table if ramp-like; reduce thickness if brick-like. Leave space around the lower-right opening and retain the rear so its hinge remains inspectable.

Raise the upper arm around the rear connection

Set a small rear hinge region and bring the upper arm back to it, lifting only its front enough for an opening. Check two axes meeting at the rear rather than a whole upper arm translated parallel above the base. Give it a slightly thick blue-green top and darker near side, with length comparable to the base but not necessarily identical. Lower an excessive front opening if it resembles a wide clamp. Reconnect the rear and remove unjustified gaps if two separate objects seem stacked. Suggest one exterior hinge rather than two circular pins defining incompatible axes.

Seat the metal channel beneath the upper arm

Draw a narrower silver-grey channel beneath the upper arm, rising in the same direction, rear near the hinge and front toward the base front. Do not let one half follow the arm and the other become horizontal with the base. Inspect arm and channel alone for width, length and connection, then restore the base. Shorten excessive exposure and show enclosure if it resembles a falling blade. A small visible silver near edge is enough if layers otherwise merge. Do not invent gears, springs or staple rows for mechanical richness; show exterior boundaries visible from this angle.

Separate the base front from paper contact

Place two or three thin sheets in front of the base, entering near the opening from the right without a pressing action. Use warm white with thin grey near edges, never a stack thicker than the base. Align the channel front above roughly the same working region as the base front. Paper occupies part of that space without passing through a plastic side. Repair occlusion if sheets grow from inside the base; add slight tabletop contact if floating. Sheet count and placement are compositional choices, not a claim that they are stapled or a depiction of actual use.

Differentiate shell and metal reflections

Keep a broad soft upper-left highlight on the blue-green shell, turning gently darker lower right. Give metal only a few narrow grey-white reflections. Darken the base modestly so opening layers remain readable, without painting it black. Reduce sharp white shell lines if chrome-like; add a few crisp value transitions if the channel resembles plastic. The rear hinge need not outshine the front. Hide reflections to confirm continuous arms, then restore them and remove any bright band crossing the opening and merging layers. Material detail must clarify, not conceal, connections.

Keep the opening from becoming a black triangle

Use occlusion shadow between arms, deeper at the rear and more open at the front, not one uniformly black triangle. Retain small value differences among visible channel, base top and paper, then add tight contact accents. Reconnect an excessively hollow rear hinge if it resembles a scissor gap. Expose a little more front space if box-like. Cast ground shadow lower right, tightest under the base, rather than an equally black border following the raised arm. These checks explain exterior space, not real mechanical travel or moving-part behaviour.

Verify the shared hinge with two axes

In a sketch copy retain only base and upper-arm direction lines and extend them toward the rear, checking that they meet one small hinge region. Restore contours, locate shell offsets despite correct axes, and repair locally without shifting already connected paper. Hide decoration and reflection and test the opening in monochrome. If only a circular dot implies a hinge while a long rear edge remains broken, reconnect that edge. A changed view needs new axes and side visibility, not simply a mirror image retaining old upper-left light and paper occlusion.

Read connections first in the exported image

Save the layered native work and inspect rear hinge, front opening, channel-to-base alignment and paper edges in a PNG at use size. Strengthen local rear connection if the arm floats rather than blackening the whole gap. Reduce sheet-edge cues and lighten lines if paper becomes a thick block. Keep the axis sketch and record a definite fault, such as a white gap between rear arm and hinge. Real staple holes or motion trails are unnecessary; static exterior structure identifies the object. Shell colour may vary later, but altered angle or opening requires fresh axis and occlusion checks.

Related tutorials and sources

Draw pliers in Aquarell: turn both halves around one pivot; Draw stacked books in Aquarell: distinguish spines, page edges and layers.

Sources checked on 8 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.