M ASS P RODUCTION IN M ANUFACTURING Copyright © Texas Education Agency, All rights reserved Principles of Manufacturing 1

T YPES OF M ASS P RODUCTION  Custom Manufacturing  Intermittent Manufacturing  Continuous Manufacturing  Just-In-Time  Flexible Manufacturing 2 Copyright © Texas Education Agency, All rights reserved

C USTOM M ANUFACTURING  Producing a small number of products made to customer specifications. 3 Copyright © Texas Education Agency, All rights reserved

I NTERMITTENT M ANUFACTURING  Producing parts in groups instead of continuously. Making small batches of parts when needed, and then changing to different parts. 4 Copyright © Texas Education Agency, All rights reserved

C ONTINUOUS M ANUFACTURING  Producing parts in a steady flow. 5 Copyright © Texas Education Agency, All rights reserved

J UST -I N -T IME The use of a production strategy to make products when ordered and not stock piling materials or finished products. Material and parts arrive at the production line when needed. 6 Copyright © Texas Education Agency, All rights reserved

F LEXIBLE M ANUFACTURING The ability to easily change tooling, materials, and equipment to produce different products. 7 Copyright © Texas Education Agency, All rights reserved

P RODUCT P ROTECTION  When a product is invented the person or company will apply for a patent.  Patents are licenses assigned by the government to protect the inventor from someone else copying their product.  The US Patent Agency keeps track of all new ideas and inventions. 8 Copyright © Texas Education Agency, All rights reserved

P ATENTS  The United State Patent and Trademark Office has educational material for students.  Inventnow is a game for students to use to invent a product and start the patent application. Inventnow  Icreatm Curriculum has information about Patents and Trademarks. Icreatm Curriculum    ds/kid_tm_curriculum.html ds/kid_tm_curriculum.html 9 Copyright © Texas Education Agency, All rights reserved

T EXAS P APER T OWEL H OLDER Mass Production Project 10 Copyright © Texas Education Agency, All rights reserved

P LANS 11 Copyright © Texas Education Agency, All rights reserved

T EXAS P APER T OWEL H OLDER  All jigs, fixtures and patterns will be provided by the teacher.  Base is made from a 1 X 10 pine board, 1”, 3/8” and ¼” dowels, a wood screw and 4 rubber bumpers / felt pads. 12 Copyright © Texas Education Agency, All rights reserved

P ARTS OF P APER T OWEL HOLDER Cap with ¼” dowel Post Tear Bar Base 13 Copyright © Texas Education Agency, All rights reserved

B ILL OF M ATERIALS FOR ONE P APER T OWEL HOLDER Bill of Materials Part Name QuantityThicknessWidthLength Board Footage Base1¾”9 ½”.75 Cap1¼”2” dia. Post11” dia.10 ¼” Bar13/8” dia.6 ¾” Cap Peg1¼” dia.1 ½” Wood Screw 1 #8 Flathead 1 ½” 14 Copyright © Texas Education Agency, All rights reserved

T EXAS B ASE Cut base to 9 1/2” x 9 1/2” square size using radial arm saw. Use oversized pattern to draw layout, cap and hole placement on base. Use 2” hole saw to cut out cap. Cut out shape on band saw or scroll saw. Drill holes in base using drill press. Attach finishing jig to bottom of base with screws. Use router with a straight bit to cut base to final size. Remove jig from base and route the top edge with a round over bit. 15 Copyright © Texas Education Agency, All rights reserved

16 Drill 1” hole 3/8” deep for towel post as marked. Drill 3/8” hole 3/8” deep for tear bar as marked. Drill 1/8” hole in bottom center of 1” hole. Sand surface with 120 grit sandpaper. Sand surface with 220 grit sandpaper. Copyright © Texas Education Agency, All rights reserved

P OST Cut 1” dowel to 10” length using the fixture. Drill ¼” hole ¾” deep in center of one end of the post using fixture. Sand post with 120 grit sandpaper. Sand post with 220 grit sandpaper. 17 Copyright © Texas Education Agency, All rights reserved

T EAR B AR  Cut 3/8” dowel to 6 ½” length using fixture.  Sand dowel with 120 grit sandpaper.  Sand dowel with 220 grit sandpaper. 18 Copyright © Texas Education Agency, All rights reserved

C AP Using jig to hold cap, sand edges using disk sander. Use the non slip router pad to hold the cap and rout both edges using a router and round over bit on. Sand cap with 120 grit sand paper. Sand cap with 220 grit sand paper. Cut 1/4” dowel to 1 ½” length using fixture. Glue into hole in center of cap. 19 Copyright © Texas Education Agency, All rights reserved

A SSEMBLY Mount rubber bumpers or felt pads to cover the holes on bottom of base made when attaching finish jig. Glue post into 1” hole on base. Install screw into 1/8” hole from underneath side. Glue tear bar into 3/8” hole in base. Allow glue to dry. Inspect and sand again if necessary. Finish project using approved finish materials. 20 Copyright © Texas Education Agency, All rights reserved

R ESOURCES How It’s Made videos New VW Car Factory in Dresden, Germany New VW Car Factory in Dresden, Germany ‏ el=0 21 Copyright © Texas Education Agency, All rights reserved