Instructables

How to make a 200 lb. fully rotating Wing Chun Dummy - PVC and Concrete version

Yep, as a martial artist, especially after having watched Donnie Yen in Ip Man at the beginning of the summer, I set out with the intention to build something that would inspire me to train to greater heights everyday, as well as make it out of something cheap and affordable, like PVC. Ultimately, I ended up spending just under $150.00, which, for half the supplies, that got me extras for making another one in the future.

Oh, here's a list of the materials for an update, as well as the prices:
-One 10 ft section of 6 inch diameter PVC pipe - $26.33
-One 10 ft section of 3 inch diameter PVC pipe - $5.49
-One 10 ft section of 1/2 inch diameter PVC pipe - $2.79
-Two 6 inch diameter PVC endcaps - $24.46 ($12.23 individually)
-One 3 inch diameter PVC end cap - $2.98
-Three 1/2 inch diameter PVC endcaps - $2.31 ($0.77 each)
-One 45 degree PVC Elbow (the angle depends on the style you prefer, I have the leg penetrating further in due to the Hung Gar style of utilizing a wider gait and a wider gate) - $2.38
-Epoxy spray paint - Red - $4.97
-Epoxy spray paint - Black - $4.97
-1 can of Plasti-Dip spray - $4.97
-Four 60 lb. bags of concrete - $9.00 ($2.25 per each of them)
-Two 10 ft sections of 1/2 inch thick iron rebar - $5.50
-1 Hacksaw - borrowed this from my roommate
-1 Miter Saw - borrowed this from my roommate
-1 Jigsaw (even though it's mentioned in one of the steps that you can eliminate the actual need for this as Menards sells a Round Edge Glued Pine Panel 5/4" x 12" for $5.49) - I borrowed this from Master Sonny Couch's brother-in-law's father
-One 12 inch round Lazy Susan Plate, 1000 lbs. capable (you can get this off Amzaon.com) - $8.63
-One 12" x 18" Galv. Sheet Metal - $4.98
-2 x 4 studs - these were just lying around in my garage
-Loppers (for cutting the sheet metal - trust me, the hacksaw would just be a pain in the ass) - borrowed these from my roommate (Did I bother mentioning Danny is a Construction worker)
-3/4" x 2' x 2' Oak Plywood Sheet - $ 6.99
-2 Menards buckets (One to mix the concrete, one to form it, lol) - I got these as a deal of 2 for $5.00
-About 30 Drywall screws, 1.25 inches long - $5.96 for a box of 500 pieces, but i actually ended up borrowing them from Master Sonny Couch
-A hammer (for knocking the ends off the drywall screws, but you could honestly leave them up since they'll be covered in concrete anyway - Yeah, I just generally own a hammer, myself
-About ten 2 inch long Construction Screws - $5.96 for a box of 270
-Flat Head Stove Bolts,3.5 inches long, .25 inches thick - $0.82 for a pack of 4
-20 fender washers, about 1/4 inch thick should do it - $2.07 ($0.69 for a pack of 7)
-extra steel washers thicker than 1/2 inch - The definition of extra is that I didn't buy them for this project, they were just lying around and were thicker than a 1/2 inch)
-12 inch long eye bolt, 1/2 inch thick - Again lying around, but either way, it should be about $3.49
-One 1/2 inch drill bit (a drill press is easier than a hand drill, but whatever works) - this one however, was very much so lying around in my garage
-One heavy duty can of PVC glue - $7.99
-A sharp knife to cut the plastic bucket - if it's your roommate's, and he finds out by reading this instructable, that's just priceless
-Masking tape - $1.79
-2 Power Poxy Weld containers - $5.14 ($2.57 per each container) (I will be doing this step later today)
-A shipload of patience, lol

Sum total: $148.97! Good luck to anyone on the attempt, and I'll be updating the process for the base-spinning plate in a few days!

Btw, Special Thanks to MENARDS for giving me every piece of material for this project - I will eventually give them a print out/poster of this instructable to hang in their store.
 
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Just curious how durable has this proven so far? We used to go pretty hard on our wooden dummies at my school. I've heard of PVC dummies before but was always skeptical about the durability of PVC vs wood for a repeated impacts.

pro52001 year ago
nice work friends :D
had occurred to me to make this dummy, but my idea is to use a welded steel pipe, maybe a little more expensive but it will be more durable and stronger to withstand punches and kicks, especially on the legs dummy. Of course, the iron must be coated soft materials, such as foam
That is one sweet wing chun dummy, I would love to construct one for my own. Is there any chance I can grab a PDF file format for that? Thanks in advance.
EagleScout316 (author) 4 years ago
Well, as an update to this project, I'm super happy I work Security for CAT, it allows me to talk with CAT technicians/welders/engineers most of the day.  Anywho, got to talking to a guy who saw a pic of my lazy susan plate, and basically told me it was the wrong one to use from the get go, but instead to use the plates they use on the pivot seats you have on boats these days.  More info to follow, I'll see if I can't just hack off part of the base this weekend and stick the new one on.  Will fill you all in as the information becomes cognizant in my mind.  ;)
neonack4 years ago
 Unfortunately the Characters for Study and Diligence are switched just have o mention it. Although sweet instructable!! 
EagleScout316 (author)  neonack4 years ago
Well, yeah, that's how they are written for the dialect my professor used, but when read to be madde understandable in an English sentence, she says to flip the words.  Really though, just looking at the characters as a whole and understanding that the meaning is in there, just not left to right, is what's important.
EagleScout316 (author) 4 years ago
Well, my Sifu came over and had a look at it, and decided that the vertical recoil exists not between the bottom plate of the lazy Susan and the base sheet of plywood, but between the top plate of the Lazy Susan and the two disks of sheet metal and 3/4 inch plywood. He suggested I get liquid nails for it and try to glue the edges of the top plate to the the sheet metal, and the sheet metal to the wooden disk. Hopefully, that should do it. I'll keep you all updated, and take a good bit of video when it's finally finished.
theRIAA4 years ago
I think I get what this is but a better final picture would help... I think the "recoil" problem would be best solved with lots of oil on the ball bearings... the lazy suzan DOES have ball bearings right?
EagleScout316 (author)  theRIAA4 years ago
As I said, still working on getting the videos working. Movement is hard to capture with a picture, though. The recoil problem is not on a horizontal plane (there's over 100 ball bearings in the lazy susan plate, and she doesn't bend), but on a vertical plane. It rocks back and forth if you sink too much force on it...seems the problem is with putting the 2 x 2 square pieces of wood on the bottom plate. I would eliminate them all together, but another design problem is created: I can't drill up from the 2 ft by 2 ft plywood sheet into the lazy susan, as there's nothing to attach to the bottom plate of the lazy susan. Vice versa, I can't just screw from the topside of the bottom plate down into the plywood sheet, as I would still need access to the bottom side of the top plate of the lazy susan for screwing all necessary screws up through the sheet metal and wooden disk. Alas, a major design issue is raised. If anyone has any ideas, I'm more than willing to hear them - it's really a bugging matter. With the concept behind this Wing Chun Dummy, it's that you would be able to develop short power and hard qigong power training on it: that is, by having a subject weighing 200 lbs that can be spun 360 degrees around, one might be able to come to understand the amount of force required to move said subject from either using a short range redirect, or even a hard and rough strike. Hope that helps a bit.
EagleScout316 (author)  EagleScout3164 years ago
On an update to my problem, I think I may pull the studs off the bottom of the lazy susan plate, sand the metal surface down, and use a heavy duty metal epoxy glue and just glue the sucker down directly to the plywood sheet. I'll let you all know what happens with it.
Wolf Seril4 years ago
Very nice. Just one suggestion- add a materials list on the first step or introduction.
EagleScout316 (author)  Wolf Seril4 years ago
i will, gotta find my receipts first. Just wanted to get this up here so my fellow martial arts friends from across the globe could see how things turned out.
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