Post on 18-Jan-2016
transcript
1
Step On It:A Footstool ProjectPrinciples of Manufacturing
Copyright © Texas Education Agency, 2012. All rights reserved
2
A footstool is: *functional *simple to construct
*inexpensive
The material used is a 1 X 12 from the lumber yard.
Copyright © Texas Education Agency, 2012. All rights reserved
3
Alternative Designs
The student can change the end and rail designs to personalize their footstool.
Copyright © Texas Education Agency, 2012. All rights reserved
4
Footstool Plans
Copyright © Texas Education Agency, 2012. All rights reserved
5
Pictorial Plan
Copyright © Texas Education Agency, 2012. All rights reserved
6
Exploded View
Copyright © Texas Education Agency, 2012. All rights reserved
7
Three View Plans
Copyright © Texas Education Agency, 2012. All rights reserved
8
Top Plan
11 1/2
143/4
Copyright © Texas Education Agency, 2012. All rights reserved
9
End Plan
10
8
2 1/2 2 1/2 2 1/2
1
Copyright © Texas Education Agency, 2012. All rights reserved
10
Rail Plan
10 1/2
2 3 1/2 3 1/2
2
1
Copyright © Texas Education Agency, 2012. All rights reserved
11
Bill of MaterialsPart Name
Quality Thickness Width Length Board Footage
Cost
Top 1 3/4 11 1/2 14 1.12 $1.67*
End 2 3/4 10 8 1.11 $1.66*
Rail 2 3/4 2 10 1/2 0.29 $0.44*
Totals 2.52 $3.77*
*Prices will vary
Copyright © Texas Education Agency, 2012. All rights reserved
12
Simple Production Steps
Copyright © Texas Education Agency, 2012. All rights reserved
13
Beginning the Project
• Ask instructor for material.• Cut material to the dimensions of the parts.• Lay out the designs on the ends and sides.• Cut the designs. • Smooth the design cuts with a file and
sandpaper.
Copyright © Texas Education Agency, 2012. All rights reserved
14
Steps in Sanding
• Coarse sand all surfaces of the parts using 80 or 100 grit sandpaper. (removes all saw and file marks)
• Sand all surfaces of parts with 120 or 180 grit sandpaper. (removes coarse sanding marks)
Copyright © Texas Education Agency, 2012. All rights reserved
15
Placing Screw Holes in Rails
• Use a drill press and drill two holes in each rail to install the top. The hole needs to be counter bored for the screw head.
1 1
3/8
Copyright © Texas Education Agency, 2012. All rights reserved
16
Counter Boring for Screws
1/8” drill through the rail first
3/8” drill ½ deep in bottom of rail
The counter bore will hide the screw head inside the rail.
Copyright © Texas Education Agency, 2012. All rights reserved
17
Assemble Rails to Ends
• Nail the rail to the ends with 8d nails.
•drive two nails per rail end
•add glue to the end of the rails
Copyright © Texas Education Agency, 2012. All rights reserved
18
Mounting Top on Footstool
• Turn the top upside down on the work surface.• Set the end/rail assembly on the top and
measure 1” from all top edges and the assembly. This centers the top on the assembly.
• Install 4 screws into the holes to hold the top to the assembly. The screws are #8 wood screws that are 2“ long. This length of screw will hold the top on the footstool.
Copyright © Texas Education Agency, 2012. All rights reserved
19
Measuring for Top Alignment • Measure 1” in from each side of the top for placement
of the rail/end assembly.
Top
Rail/EndAssembly
1”
1”
1” 1”
Copyright © Texas Education Agency, 2012. All rights reserved
20
Steps to Finishing
• Use the 180 grit sandpaper and sand all surfaces of ends and rails after the assembly has been put together.
• Finish the footstool using the steps you learned in the lesson in “Finishing a Project.”
Copyright © Texas Education Agency, 2012. All rights reserved
21
Resources
• Lumber and Supply Store site• Woodcraft
http://www.woodcraft.com/• Rockler
http://www.rockler.com/• Brazos Forest Products
http://www.brazosfp.com/sitemap.html
Copyright © Texas Education Agency, 2012. All rights reserved
22
Resources
• Woodworking Magazine sites• Wood Magazine
http://www.woodmagazine.com/• American Woodworker Magazine
http://americanwoodworker.com/default.aspx
Copyright © Texas Education Agency, 2012. All rights reserved