This Instructable will show how to make a wooden dummy; a centuries old training aid for martial arts to develop powerful blocks and hand speed. While originally from the Wing Chun style, this version is slightly tweaked to make it more applicable for Karate's straight in techniques.
I am a 4th Dan black belt instructor in Isshinryu karate, and I make this a part of my regular training routine. This is the second one that I have built, the first one that I built to a similar design having lasted in good condition through 5+ years or training. In fact, the only reason that I build this second version is so that I would have one that folds so I can put it in my car to take to class. The cost is very reasonable at $106.56 +tax (possibly a lot cheaper - see parts list), when compared to the $902 for a wooden dummy from www.Tigerclaw.com. The attached PDF gives dimensioned drawings of the wooden dummy, as well as multiple 3D views.
See below for a video of some of the drills that I use it for - you will see that it is very versatile. Also be sure to check out step 9 for extra features. I am planning on building several of these in the future that I can leave permanently at my school, so if you have any ideas for improvements please feel free to post.
Step 1: Parts List
Below is a list of everything you will need to make this project.
Unless otherwise noted, all item numbers are from Lowe's. Just go to www.lowes.com and enter the item number in the search bar to see exactly what I am talking about.
1. 10-foot 10"x2" board, cut into a 6' section and a 3.5' section (Item #78045, $9.45)
2. 2 10-foot long 2"x4" boards, cut by your friendly Lowe's representative into the following pieces:
(Item #27172, $4.27 each)
a. 4" piece (x4)
b. 9" piece (x2)
c. 5.75" piece (x2)
d. 19" piece (x2)
e. 3' piece (x1)
f. 5' piece (x2)
3. 12"x24"x1" Red Oak board (Item #9355, $12.96)
4. 4 3/8"-16X3-1/2 Grade 8 bolts (Item #136102, $1.46/2 pack)
5. 4 Flat washers 3/8-16 Grade 8 (Item #136056, $1.09/pack)
6. 4 Hex nuts 3/8-16 Grade 8 (Item #136068, $1.21/pack)
7. 3 3" 5/8R Satin brass door hinges (Item #308904, $2.17 each)
8. 3" screws, approx. 41 (Item #112363; buy from local store where you can buy just what you need by weight)
9. 1.25" screws, approx. 8 (Item #227168; same as above)
10. 3 Rubber bands (From www.walmart.com, item ULG1047, $1.89/bag - should just have some lying around :) )
11. Large cloth makiwara (from www.tigerclaw.com, Item #20-85, $30.79)
12. Small cloth makiwara (from www.tigerclaw.com, Item #20-84, $24.59)
Note: The makiwaras make up most of the expense of this project. You could
substitute cloth over foam similar to my Homemade Leg Press machine instructable
for a lot less cost.
12. 60" straight bo staffred oak, cut into 3 equal sections (from www.tigerclaw.com, Item #30-60, $24.99)
Note: I used this to be sure it was extra sturdy, but after using it I think standard 1" dowels
would work just fine and cost a lot less (Lowes, 2 of the 1"Dia. x 36"L Oak Round Dowels,
item #19425, $4.25/each)
13. Optional: Minwax wood finish, English Chestnut 233 (Item # 74469, $4.77)
14. Optional: Minwax polyurethane, clear semi-gloss (Item # 45870, $6.47)
2. Measuring tape
3. 12" drill bit extension
4. Various drill bits, including a 1-1/8" spade bit
5. Small hand saw
While building this wooden dummy, you will be using several things that could be potentially dangerous. For chemicals (stain, varnish), make sure to only use them where there is plenty of ventilation and no open flames around. For the tools (drill, saw), make sure you have read the owners manual for your specific tool and know how to use it, and wear the appropriate protective clothing (safety glasses, gloves). For safety in using the finished wooden dummy, this instructable assumes that the person building it has been trained in its use at a qualified martial arts school.