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Forum topic by klr650teach posted 03-20-2017 02:34 PM 184 views 0 times favorited 8 replies Add to Favorites Watch
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klr650teach

3 posts in 5 days


03-20-2017 02:34 PM

Hello Everyone, I’m sure most of you have seen Bruce Lee Kung Fu movies where he practices his moves on a wooden dummy called a Mook Yan Jong. The main body of the dummy is traditionally 9 inches in diameter and 5 feet tall – a smooth cylinder it’s whole length.

I joined a local Wing Chun temple and when the instructor heard I was somewhat skilled with wood working he approached me to make wooden dummies for the school to sell to students. The problem is my light duty Shopsmith lathe won’t turn anything that long.

I’ve looked at commercial lathes with long beds and WOWZERS they are expensive. I can’t afford to buy anything like that which leaves me wondering if there isn’t something I could build. I’ve retired and now live full time in Mexico where hard wood is readily available and cheap by north of the border standards.

Does anyone know where I might find free plans online? Or perhaps other info on a DIY lathe to build at home. I really only need details on the components of the headstock for parts…....I think the rest would be fairly simple to build. It would not necessarily even need to be adjustable for stock of different lengths. It could be made for turning 5 foot lengths only to simplify it’s design.

Suggestions anyone please?


8 replies so far

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papadan

1915 posts in 2938 days


#1 posted 03-20-2017 02:58 PM

Start looking for an old Craftsman or Ridgid tube lathe. They are perfect for this type work. The head and tail stocks just have a piece of pipe between them and can be replaced by a longer pipe. Sorry I’m not closer, I have one I’m not using right now and could lend it to you. The Craftsmans were very popular back in the day and should be easy to find one.

-- Carpenter assembles with hands, Designer builds with brains, Artist creates with heart!

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higtron

226 posts in 2247 days


#2 posted 03-20-2017 03:16 PM

I see a lot of people on you tube building pole lathes and treadle lathes it seems just take some of those ideas to create motor driven lathe expressed out of wood or metal https://www.youtube.com/watch?v=xUiW2LUzL5c
https://www.youtube.com/watch?v=H_aRLCKrzfI
https://www.youtube.com/watch?v=XCt3LooUVsQ
these are just a few I think you could adapt one of these concepts to your needs or search you tube for other ideas.

-- A friend will help you move, a good friend will help you move a body

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Wildwood

1956 posts in 1705 days


#3 posted 03-20-2017 04:34 PM

Did not known anything about a Mook Yan Jong so went looking for information. Guess they come in various lengths & diameters. Seen them made from wood and PVC pipe. Wanted to know the cost of a Mook Yan Jong Dummy before posting so here is what I found. If were just making one would not want to build a lathe, and would go for a PVC model. If had a steady market for wood dummies might be worth my time & money. to build a lathe.

PVC Dummies
https://www.everythingwingchun.com/pvc-wing-chun-dummies-jongs-s/281.htm

Wood Dummies
https://www.everythingwingchun.com/Wood-Dummies-Made-Built-to-Order-s/315.htm

Since these thing can be anywhere from 4’ to over 7’ long and as much as 9” in diameter need a pretty strong lathe with at least at least 8’ or 10’ between centers, 12” swing or larger if using wood to make them.

8’ or 10’ Vega non-copy lathes new not that expensive and lot cheaper if can find one used.
http://vegawoodworking.com/wp-content/uploads/2014/12/Vega-Enterprises-Price-List-20141.pdf

Good luck with it!

-- Bill

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klr650teach

3 posts in 5 days


#4 posted 03-20-2017 05:41 PM


I see a lot of people on you tube building pole lathes and treadle lathes it seems just take some of those ideas to create motor driven lathe expressed out of wood or metal https://www.youtube.com/watch?v=xUiW2LUzL5c
https://www.youtube.com/watch?v=H_aRLCKrzfI
https://www.youtube.com/watch?v=XCt3LooUVsQ
these are just a few I think you could adapt one of these concepts to your needs or search you tube for other ideas.

- higtron

My original thoughts were to do just this and make a wooden pulley that could be used as an end cap/s and turn the spindle between two dead centers. But upon further thinking decided that adding a motor and proper headstock would make life much easier.

These mook jongs would not be a one off project as every time a new student wants one I would build another. Plus the lathe could be used for every other type of turning I might want to do afterwards into the future.

I have no real interest in buying another lathe when I can have a fun project building one at a fraction of the cost like this;

https://i.ytimg.com/vi/39t4yE9_9YU/hqdefault.jpg

So really as I already stated, I need input and suggestions on how to build the headstock ie. types of bearings and features for the headstock spindle for the most common thread sizes, morse tapers etc. tnx

View Loren's profile

Loren

8523 posts in 3218 days


#5 posted 03-20-2017 05:42 PM

I’ve talked to one or two guys who tried making
these dummies and it’s a lot of work… aside
from the turning they generally require deep
through mortises which are difficult to execute,
which is why they are expensive.

Assuming that it’s necessary for the dummy
to be perfectly round (I doubt it) you can
turn tree trunks round using a fairly simple
to build router-lathe contraption where you
scoot the router back and forth the whole
length, turn the log a little, and repeat.

Personally I think it would be a lot more fun
to carve them “round” using a adze and/or an
electric hand planer.

View MrUnix's profile

MrUnix

4849 posts in 1769 days


#6 posted 03-20-2017 05:55 PM

9” diameter at 5 foot is going to be a pretty substantial hunk of wood, so the lathe would need to be pretty substantial as well. I would try to find some 9” diameter fence posts/poles… I know my local tractor supply has stuff like that, although they are typically much longer than 5 feet, so would need to be cut into sections.

Cheers,
Brad

-- Brad in FL - To be old and wise, you must first be young and stupid

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higtron

226 posts in 2247 days


#7 posted 03-20-2017 05:56 PM

Check this one out https://www.youtube.com/watch?v=39t4yE9_9YU this one is a beast, this one uses metal pulleys and bearings, it has a 19” swing 68” between centers it could build a 36” dia. blank 68” long I’m sure you could make the lathe any length and swing that you wanted.

-- A friend will help you move, a good friend will help you move a body

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klr650teach

3 posts in 5 days


#8 posted 03-20-2017 06:49 PM



Check this one out https://www.youtube.com/watch?v=39t4yE9_9YU this one is a beast, this one uses metal pulleys and bearings, it has a 19” swing 68” between centers it could build a 36” dia. blank 68” long I m sure you could make the lathe any length and swing that you wanted.

- higtron

This was actually my inspiration after watching the video. But the plans call for a 1.5×5 in finished dimension for the ways…...too small in my opinion. Looks like the one in the video is more like 2×8 or 2×10 for the ways which would be more to my liking. I need input for the headstock build re bearings and spindle dimensions for ease of use with other accessories.

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