Crafts And Hobbies – Readers Digest

‘e ~ Bose 1. To prepare mold for polyester-resin or concrete 2. Apply a uniform layer of paste wax as shown. _3. For polyester-resin compound casting, first mix 4. Use the spatula to mix the promoter and putty casting, first brush on three coats of shellac. Then coat each section with silicone spray. a small amount of putty with promoter. into a completely homogeneous mass. 5. ae Aaa of the amie into the first piece 6. Spread polyester-resin over mold so that it fills 7.

Leave a little extra putty on the edges, and put _‘8. Add the third piece, and tie the three together. to cover it with a 1/4-in. coat. each recess. Do the same for other mold pieces. __ the first two pieces of the mold together. Add putty to fuse the seams from the inside. oe Apply putty to the top ee ean a little 10.

Use the spatula to add putty, fusing all the 11. After about 1/2 hr, when the putty hardens, 12. Remove any flashings from the casting with extra around the edges, and press it in place. seams and leaving an even 1/4-in. layer. gently open the mold. the plaster knife. Modeling, moldmaking, and casting sculpture Working in pewter Pewter spoons are thicker than silver or stainless steel because the metal is very malleable. Pewter is a soft, silver-white alloy of tin and other metals.

Because of its silvery sheen, low melting point, and relatively low price (compared to the precious metals) pewter is an excellent metal for casting at home. Chemical and physical properties of pewter. Until modern times pewter was composed of tin and lead (about 80 percent tin and 20 percent lead). Lead caused the pewter to darken with age.

Because of its toxicity, however, lead is no longer a component of pewter. Most modern pewter is composed of tin (91 to 93 percent), antimony (6 to 7 percent), and copper (1 to 2 percent). Tin is a brittle metal that gives pewter its sheen and resistance to corrosion. Antimony hardens and whitens the alloy and also has the unusual property of expanding as it cools, which pre- serves the sharpness of the casting.

Copper increases ductility and mallea- bility, especially important when hand forming pewter (see Metalworking, pp. 276-289); copper also makes the pewter harder. Modern pewter is harder than old pewter, and it does not lose its silver-white color. The melting points of different pewters vary with their compositions.

Metrication in Canada is in a state of flux: some industries have “gone met- ric,” others will do so in a few years. The projects in Crafts & Hobbies draw from a variety of industries. Although most of the materials mentioned will be available in imperial measure (inches, pounds, gallons, etc.) for the foreseeable future, it is wise to become familiar now with metric equivalents. LINEAR MEASURE in. (64ths) cm 0.04 0.08 0.12 in. (64ths) 24 (%””) 25 The following tables have been pre- pared with this in mind. Use them where you require metric conversions—but re- member that metric sizes are not always direct counterparts of imperial measure- ments.

When in doubt, determine the nearest equivalent and consult your local crafts shop or supplier. Where pos- sible, avoid mixing the two systems— work either in metric or in imperial. WEIGHT 16 (1 Ib.) VOLUME (Liquids) pints litres 1 (1 quart) 3.98 4.55 2 3 4 5 6 7 8 (1 gallon) Units used in recipes are translated into metric as follows: 125 ml 15 ml 5 ml 1 cup 1 tablespoon 1 teaspoon ~ MULTIPLES prefix means mega — one million times kilo one thousand times hecto one hundred times deca __ ten times So Ny ee SS eee TEMPERATURE =30′.—20) 10) 10 10° 20.5 -30r=- 40:-“50; 160″ 970”,

To convert Fahrenheit to Celsius, subtract 32 from the °F reading and multiply the result by 5/9. When buying lumber, look at these figures: inches* 2×6 2×8 2x 10 2% 12 3×4 4×4 4×6 millimetres 38 x 140 38 x 184 38 x 235 38 x 286 64 x 89 89 x 89 89 x 140 millimetres 19 x 38 19 x 64 19 x 89 19 x 114 19 x 140 19 x 184 19 x 235 19 x 286 38 x 38 2×3 38 x 64 6×6 140 x 140 2×4 38 x 89 8×8 191 x 191 *Keep in mind that these measurements are commercially standardized.

Actual dimensions are slightly smaller. inches* ANZ axes, 1×4 1×5 1×6 1×8 1x 10 1x 12 2×2 pounds kilograms OMNOAARWMH— For hardboard, use this: feet millimetres* feet 4 1,200 10 3,000 8 2,400 3,600~ *Keep in mind that these measurements are commercially standardized. Actual dimensions are slightly bigger. millimetres* litres Plywood thicknesses: Sanded hardwood. Available in 3-, 4-, 5-, 6-, 7-, 8-, 9-, and 10-mm sizes.* OnNOnhWM — Sanded softwood.

This is a short excerpt from the opening of “” by Unknown, quoted for review and introduction purposes. All rights belong to the copyright holders.

Book Information

• Unique ID: 2615bd71039c60cb
• File Extension: .pdf
• File Size: 63,515,939 bytes (60.574 MB)
• Title: –
• Author: Unknown
• ISBN: 0888500890
• Pages: 465
• Language: English (en)

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• Estimated Reading Time: 1412.52 minutes
• Total Words: 282,504
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• Average Words per Page: 607.54
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