Baby Scale Drawing: Dial, Tray, and Body Form

How to use this drawing lesson

This lesson teaches a reliable way to draw a baby weighing scale: a round dial, a shallow tray, and a supporting body. You will use simple shapes and a defined drawing convention so your result is clear and checkable. The convention is: draw all construction lines lightly first, then darken final outlines; place the dial circle above the tray ellipse; keep the tray ellipse wider than the dial; and show the body as a tapered form connecting tray to base. Label styles and exact proportions may vary, so the rubric rewards correct relationships rather than one universal answer. All measurements below are hypothetical examples for practice; measure your own paper and tools when drawing.

Construction order and shape relationships

Start with the dial because it sets the drawing's visual center. Draw its outer circle, then a smaller concentric circle marking the inner boundary of the rim band. Next, draw a wide, shallow tray ellipse centered below the dial. For the introductory and worked example, choose a tray width twice the dial diameter. This is a chosen drawing ratio, not a device standard; explicit task values take priority. Sketch two body sides tapering inward from attachment points on the underside of the tray toward a flat body baseline. Add the short stem between dial and tray, then a base bar below the body. This is a stylized form study, not an equipment or calibration diagram.

Keep the vertical axis consistent: the dial center, tray center, and base center should align on one imaginary vertical line. This single alignment check prevents the scale from looking tilted. Use light construction lines for all shapes, then darken only the final outlines. If you change a proportion, adjust the construction lines before darkening so the drawing stays coherent. For a numerical body height, measure the vertical span from the shared level of the two upper body attachment points beneath the tray to the flat body baseline. Do not include the dial, tray depth, stem or base-bar thickness in that body-height measurement.

1. Draw a light vertical axis line.
2. Draw the outer dial circle centered on the axis, then a smaller concentric circle for the inner edge of its rim band.
3. Draw a wide shallow tray ellipse centered on the axis below the dial; make it wider than the dial.
4. Sketch two tapered body sides from the underside of the tray down to the flat body baseline.
5. Add a short stem between dial and tray, and a base bar under the body.
6. Darken final outlines and erase construction lines.

Dial details and tray depth

The dial needs only a few marks to read as a dial: a center point, a short pointer line, and several evenly spaced tick marks around the rim. Do not attempt to show real measurement values; this lesson is about form, not reading measurements. For the tray, show depth with a second ellipse slightly below the first and connect the two with short side curves. This creates a shallow basin. Keep the tray depth small relative to its width so it reads as a baby tray rather than a bowl.

For the introductory and worked example, choose tray width equal to twice the dial diameter and body height equal to one and a half times that diameter. These are this lesson's hypothetical drawing ratios, not common equipment standards. An exercise may choose different values: task 2 explicitly uses a 5 cm body with a 4 cm dial, so its body-to-dial ratio is 1.25 rather than 1.5. When a task leaves a dimension unstated, label any value you choose as illustrative instead of treating it as required.

1. Mark the dial center and draw a short pointer line.
2. Add evenly spaced tick marks around the dial rim.
3. Draw a second tray ellipse slightly below the first for depth.
4. Connect tray ellipses with short side curves to show a shallow basin.
5. Compare tray width to dial diameter and adjust if the tray looks too narrow or too wide.

Body form, base, and labeling

The body should look stable. Use two side lines that curve outward slightly near the tray and inward near the base, then finish with a flat base line. Add a base bar or rounded rectangle beneath the body to suggest a stand. Label the drawing with three terms: dial, tray, and base. Place labels outside the outline with straight leader lines that touch the part they name. Keep labels horizontal and avoid crossing leader lines.

Because letter styles vary, labels may be printed, cursive, or mixed case as long as they are legible. The rubric checks that each label points to the correct part and that the three parts are visually distinct. Valid alternatives include a round base instead of a bar, or a slightly different dial rim thickness, provided the dial-tray-base relationships remain clear.

1. Draw tapered body sides from the tray-underside attachment level to the body baseline.
2. Add a flat base line and a base bar or rounded rectangle.
3. Write labels for dial, tray, and base outside the outline.
4. Draw straight leader lines from each label to its part.
5. Check that no leader lines cross and that all labels are legible.

Worked example

Draw a baby scale with a dial circle of 4 cm diameter, a tray ellipse about 8 cm wide, and a body about 6 cm tall. Label dial, tray, and base.

A completed drawing shows a 4 cm dial circle centered on a vertical axis, an 8 cm wide shallow tray ellipse below it, a tapered body with a vertical span of about 6 cm from its upper attachment level to its flat baseline, followed by a separate base bar, and three legible labels with straight leader lines pointing to dial, tray, and base. Construction lines are erased and final outlines are darkened.

Four exercises with answers

Check your drawing

• Dial is a clear circle with a center point, pointer, and tick marks.
• Tray is a wide shallow ellipse, visibly wider than the dial.
• Body tapers from tray to a flat base and looks stable.
• Dial, tray, and base are centered on one vertical axis.
• Labels for dial, tray, and base are legible and correctly placed with straight leader lines.
• Construction lines are light or erased; final outlines are darkened.
• Valid alternatives such as a rounded base or different rim thickness are accepted if part relationships remain clear.

Common mistakes

Drawing the tray narrower than the dial.

Widen the tray ellipse so it is clearly wider than the dial circle; in the hypothetical guide, about twice the dial diameter.

Letting the dial, tray, and base drift off the vertical axis.

Redraw a light vertical axis first and center each major shape on it before darkening outlines.

Making the tray look like a deep bowl.

Keep the second tray ellipse close to the first and use short side curves to show only shallow depth.

Using leader lines that cross or point to the wrong part.

Place labels outside the drawing and draw one straight leader line per label to the correct part.

Frequently asked questions

Do I need to show numbers on the dial?

No. This lesson focuses on form. A center point, pointer, and tick marks are enough to read as a dial.

Can I use a different base shape?

Yes. A rounded base or a bar is acceptable if the body still looks stable and the base is visually distinct from the tray.

How wide should the tray be?

Use the hypothetical guide of about twice the dial diameter, then check by eye or ruler and adjust so the tray reads as wider than the dial.

What if my handwriting is uneven?

Legibility matters more than style. Printed, cursive, or mixed-case labels are all acceptable if each label clearly names its part.

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