Building a "Universe Cycle"

 by bdring
Featured
uc_done.JPG
While searching on-line for a unicycle, I saw something similar to this. It looked like a fun project and a good addition to our collection of dangerous toys. The kid next door came up with the name. Others called it a unicycle with training wheels.

 
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Step 1: Parts List

3/4" Plywood. A little more than 3 sq.ft.
2x6. About 24" long
1/2 NPT Steel Pipe. 2 pieces @ 8" long.
1/2 NPT Steel Pipe Flange qty 4
1/4-20 x 1" Flat head screws qty 16
1/4-20 Nuts (I used T-Nuts) qty 16

Cost To Build. I had everything except the plumbing parts which were about $18.
Duration: About 2 hours not including the decorating time.
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wakojako says: Dec 9, 2011. 9:16 AM
Hahaha! I remember as a kid I used to play around with these (we had one at school). Great fun it was!

Now I ride muni (mountain unicycle) and sometimes do some trials - it's great fun
brupielink says: Oct 3, 2011. 6:55 AM
Ah, those things! Still have them around here for the kids.
the cat expert says: Oct 2, 2011. 4:48 PM
Go unicycles!!! I am downloading the PDF immediatly.
TheHawkeye says: Oct 2, 2011. 12:59 PM
Cool idea! It might be easier to balance if there was a handlebar. Make it sort of like a Segway. How do you turn on this though?
Chikara says: Nov 15, 2009. 12:11 PM
omgish add a gyroscope. then it would be awesome.. and even better if you add a T bar like the legway!
Tenebrioun in reply to ChikaraJul 27, 2011. 1:20 PM
If you added a T-Bar, wouldn't it just be a legway?
pie R []ed in reply to ChikaraMar 20, 2010. 12:20 PM
the concept is meant to be simple. that's why there's no t bar. I'm just guessing here but i think this is meant to be a fun little thing not hi tech. what you just described was a segway this is and the legway are meant to be simple mechanical systems if you added a gyro it would lose its charm.
dragonsniper says: Jun 28, 2011. 11:55 AM
i think u could turn a whole lot easier if u make the wheel that's in the middle slightly larger than the side wheels
* v *
tranoxx says: Dec 21, 2010. 2:35 PM
who needs a band saw when you have a... HAND SAW!!! :)
bertzie says: Sep 7, 2009. 2:04 AM
How in gods name do you turn on that thing?
SCrock in reply to bertzieAug 2, 2010. 8:25 PM
Lightly with a mallet.
sci5 says: May 26, 2010. 11:41 AM
The universe cycle was a great idea!! But I did make a few modification... Instead of cutting designs in the wheels, I went ahead and left them solid so they could support more weight. Also, next to the pedals on the steel pipe, I put metal hose clamps to keep the pedals from shifting.

Also, I just left 2 by 6 pedal solid instead of glueing the two cut pieces together. I just wallowed the pedal out from each side with a 7/8 in. paddle bit. I think this made the pedals stronger.

I put sand paper on the wheels facing up and it worked good on carpet but the glue I used to glue it to the wheel got a little lumpy at times so make sure you get all the lumps out. My suggestion would be to find some kind of rubber to fit around the wheels to get better traction.
bdring (author) in reply to sci5May 26, 2010. 12:10 PM
Sounds great!

Tires....

My Legway used plastic edge moulding.  It works, but degrades quickly.  My Streamroller used split rubber hose.  That has held up to a lot of riding.
excessive.insurgence says: May 25, 2010. 10:17 AM
could 1/2'' thick wheels work... plywood is too expensive and we dont have any 3/4'' in our garage stash
bdring (author) in reply to excessive.insurgenceMay 25, 2010. 11:13 AM
 I don't know.  My guess is yes.  You might want to protect the perimeter with some sort of "tire"
xerxesx20 says: May 6, 2009. 5:14 PM
I had a feeling the correct name was an "orbital cycle" The name spouting from the orbital motion... Perhaps somebody will clarify -- is this correct?
bdring (author) in reply to xerxesx20May 6, 2009. 8:01 PM
The working name was "unicycle with training wheels" until the second grader next door coined the name "Universe Cycle" and that stuck.
xerxesx20 in reply to bdringMay 8, 2009. 12:01 PM
Haha, cool. :-)
yangus in reply to xerxesx20Apr 11, 2010. 5:02 AM
Hmmm. well, a unicycle without a seat is called an "ultimate wheel" so I would think the name ultimate-tricycle would fit.
Achan20 says: Mar 21, 2010. 9:08 AM
kewl. id brake it or me. lol. sounds like it could use some wd40. lol. verry cool. im sure you could make some money off that.
bdring (author) says: Apr 16, 2009. 3:57 PM
The Legway is done...check it out
front.JPG
Aklash, The hunchback in reply to bdringFeb 27, 2010. 7:00 AM
 I love it
Bright Shadow in reply to bdringJul 23, 2009. 10:38 PM
That = pure anti-corporate WIN.
xerxesx20 in reply to bdringMay 6, 2009. 5:22 PM
A far superior product! No tecnical fannying about here!
xerxesx20 in reply to bdringMay 6, 2009. 5:22 PM
Marvellous! I hate the Segway, this is a perfect knife in the back for the overpriced monsters!
the_mad_man in reply to bdringMay 5, 2009. 5:06 AM
epic win
fwjs28 in reply to the_mad_manMay 27, 2009. 5:40 PM
you mean EPIC WIN!!!!!111
the_mad_man in reply to fwjs28May 28, 2009. 12:19 AM
YES, I DID!
fwjs28 in reply to the_mad_manMay 28, 2009. 12:20 PM
YAAAAY!!!!!!!!!!!!!!!!!!!!!!!11111
DuctTapeRules! in reply to fwjs28May 29, 2009. 4:56 PM
Huzzahs are in order!
fwjs28 in reply to DuctTapeRules!May 29, 2009. 4:58 PM
i agree me lord...HuuzzzzaaH!
reywolf says: Apr 25, 2009. 12:14 PM
i'm no engineer (yet) but i think i have a pretty nice way to coast...
bdring (author) in reply to reywolfApr 28, 2009. 10:55 AM
I am ready to hear any ideas. I am also willing to CNC cut pieces for anyone who wants to more the design forward. No charge...just material and shipping or less if you live in the Chicago area.
reywolf in reply to bdringMay 29, 2009. 6:42 PM
it would take a bit to explain... i'll draw up some pictures and send to yoy
Evidenceremoved in reply to reywolfJan 20, 2010. 12:30 AM
Make an instructible!
Zaphod Beeblebrox says: Dec 16, 2009. 7:51 AM
pretty scary goin down hills i bet!!!!!!!
Danrobjones says: Sep 11, 2009. 1:24 AM
Hi, whos the creator of this great piece of work. Because he is the genius I am addressing, Im doing a product design course at college and would love to do something based on the legway. Problem is I need a "client" who I can talk to about the designs ect ect. Would you bdring?? be interested in being that person.
abcnow says: Jul 11, 2009. 11:27 PM
so now try to make one with bigger outside wheels. then you could go faster.
ReCreate says: Jul 11, 2009. 9:58 PM
Wow this is Genius XP Thumbs up! Rated!
Sandisk1duo says: Apr 7, 2009. 7:43 AM
Look what i found!

The DuoPed!


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