I am currently finishing an education class so that I can teach Technology Education (shop class). My last assignment was to create a project that checks for the understanding of the previous lessons. I chose to do my lessons on shop tool safety and usage so it only fits to do a project to show off those new safety skills.
I know you all are experts here ;) so I thought you might enjoy picking this apart! I created a simple project that uses the majority of common shop power tools. Here it goes…
Assessment Project You (the student) will build a checkers board with checkers pieces to demonstrate you knowledge of tool safety and procedures. Follow the procedure list below in order to create your checkerboard.
1. Crosscut two 4 ½” wide rough boards 36” on the Radial arm saw. Make sure that the boards are of two contrasting species (oak and walnut, purpleheart and yellowheart). Use any two that you choose but make sure that they contrast one another well. These will be boards A and B.
2. Using the Radial arm saw, crosscut a 4 ½” wide rough board to 40” long using the Radial arm saw. This part is for the border, you may use any species you like. This will be board C.
3. Joint two perpendicular surfaces on each board.
4. Plane the material to 7/8” using the thickness planer.
5. Rip parts A, B and C to 2” wide on the table saw. You should now have 2 of each piece.
6. Crosscut parts A and B in half using the miter saw. You should now have 8 pieces 2” by 18”. (excluding part C)
7. Align all 8 pieces of parts A and B parallel to one another. Be sure to alternate the species every other. Glue and clamp these parts together. Be sure to clean up excess glue once it has filmed over and easily peels off. Wait at least 30 minutes before removing clamps and at least 24 hours before machining. This is now part A/B
8. Once the glue up is cured, scrape off any missed excess glue. Flatten the board with the jointer and planer where necessary. sure to put part C through so that it is the same thickness as part A/B.
9. Using the Radial Arm Saw, or the Table Saw with a crosscut sled, crosscut part A/B into 8- 2” strips.
10. Align the strips parallel to one another, flipping each strip to create a checkerboard pattern. You may wish to use the biscuit jointer or doweling jig to assure proper corner alignment. Glue and clamp as in step #7.
11. Repeat step #8 making sure that the grain is facing the correct direction. If a large drum sander is available, this machine is best. A hand plane is a possible alternative to flattening the checker board.
12. Now that the center checkerboard is complete, it is time to create the border with parts C. Crosscut the two C parts from 40” to 18” and 16”. (two 18” and two 16”, AKA C1 and C2)
13. Using a dado stack in the table saw, create a tenon on both ends of part C1 that is 1” and ¼” thick. Only cut the top and bottom. Do not cut the sides!
14. Use the router table with a ¼” straight bit to create a groove on parts C2 that spans 2 1/8” from the ends and is 1” deep. These grooves should be centered and on the same edge. These are the grooves that accept the tenons from C1.
15. Glue and clamp parts C1 to the sides of part A/B so that the grain is parallel.
16. Slip parts C2 onto the checker board so that they are perpendicular to the grain. Drill two ¼” holes over top of each tenon spaced 1” apart and 1/2” from the edge of C2.
17. Remove part C2 and widen the dill holes using a 5/16” bit so that the ends allow for wood movement.
18. Place a small amount of glue on the center, as well as the drilled holes of parts C2. Slide over the tenons and fill the holes with a ¼” dowel. Cut the dowels flush to the surface.
19. Route a decorative edge on the frame of the checker board.
20. Sand, sand and sand again up to 180 grit or higher. Apple a few coats of shellac, polyurethane or another clear coat to finish the checker board.
Almost every tool is replaceable with another tool. The radial arm saw specifically may be replaced by the table saw with a cross cutting sled.
Remember… IF YOU HAVE ANY QUESTIONS….. ASK! It is always better to ask first than to have to apologize later, especially when it comes to being able to count with 10 fingers!
The student will be graded upon their effort and determination, safety, accuracy, shop clean up and attitude during this project. Each of the 5 sections are worth 20 points.
What do you think? Would you have added anything? Would you have taken anything away? Was it clear? Don’t worry, I already submitted it so you don’t need to worry about helping me cheat :). if anyone decides that they want to make one of these simple checker boards let me see the finished product. Thanks and enjoy!
-- Let the favor of the Lord our God be on us; establish the work of our hands- establish the work of our hands! Psalm 90:17