build a bicycle trailer from old parts
TRANSCRIPT
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Food Living Outside Play Technology Workshop
CSA and Compost Bicycle Trailerby GiggleWhiskers on May 6, 2011
Table of Contents
CSA and Compost Bicycle Trailer .................................................................................................
Intro: CSA and Compost Bicycle Trailer ..........................................................................................
Step 1: Schematics & Shopping List ............................................................................................
Step 2: Assemble Top of the Trailer (part 1) .......................................................................................
Step 3: Assemble Top of the Trailer (part 2) .......................................................................................
Step 4: Paint the Top of the Trailer ............................................................................................. 1
Step 5: Bend the Conduit .................................................................................................... 1
Step 6: Bolt on the Parallel Metal Beam .......................................................................................... 1
Step 7: Attach Conduit ...................................................................................................... 1
Step 8: Bolt on the Axels ..................................................................................................... 1
Step 9: Put in Pins to hold the Wheels ........................................................................................... 1
Step 10: Assemble the Hitch .................................................................................................. 1
Step 11: Put in the Eye Bolts .................................................................................................. 1
Step 12: Attach the Kick Stand ................................................................................................ 1
Step 13: Finishing Touches ................................................................................................... 1
Related Instructables ........................................................................................................ 1
Advertisements ............................................................................................................... 1
Comments ................................................................................................................ 1
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Intro: CSA and Compost Bicycle TrailerThe CSA / Compost Bike Trailer project addresses the underutilized potential ofthe bicycle as a cargo carrying transportation device in the urban landscape of New YorkCity. Implemented in order to meet the local transportation needs of the Ditmas ParkCSA and Compost for Brooklyn, the CSA / Compost Bike Trailer ultimately seeks toconnect and build relationships between environmentally minded groups and individualsin the Brooklyn neighborhood of Ditmas Park by helping them work together to make ourfood cycle healthier and more sustainable.
The final iteration of the CSA / Compost Bike Trailer meets the needs of allprogrammatic elements required by the Ditmas Park community groups involvedand ultimately is designed to be reconstructed many times over by groups in otherneighborhoods with similar needs. To pursue this goal a detailed set of free constructiondocuments has been made available online and all materials used to make the bike trailer
are easily and inexpensively accessible at local hardware stores. It is our hope that theCSA / Compost Bike Trailer will ultimately connect people within the communitiesit functions within, promoting a healthier food cycle and the bicycle as a viable cargocarrying transportation device in the urban city environment.
by Pavel Mamontov and Greg Diedrichurbanbike.parsons.edu
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Image Notes1. This holds the bucket in place. Repeat 3 times.2. Drill 6 holes on each side for the threaded rod. Easy way to figure out theirplacement is by setting down the milk crates, spacing them out the way you needthem and marking the spots to drill
Image Notes1. These will later hold the milk crates.
Image Notes1. Washer, lock washer, and bolt on each side. Cap nuts optional.
Image Notes1. Sink the nuts into the wood.
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Image Notes1. Bike wheel will go here2. Hitch that attaches to the seat post will go here3. Attach to the trailer here
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Image Notes1. Pin goes into each hole (4 total)
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Image Notes1. 1st put in just one bolt2. Then you can drill the other holes on each side, this way they are going to beperfectly aligned.
Image Notes1. View from the other side
Image Notes1. The whole thing complety and held in place with 3 bolts.
Image Notes1. This will prevent the conduit from scratching your seat post.
Image Notes1. 2 foot chunk of hose can be bolted to this end so it wraps around the seat post.
Image Notes1. We later switched the eye bolts so they point the other way around (the eyefacing up and rotated 90 degrees)
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Image Notes1. Bolt straight through the plywood.
Image Notes1. Make sure it folds inside
Image Notes1. These side panels are optional. They could be used to advertise theorganization(s) that are going to use the trailer.
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Step 1:Schematics & Shopping ListHere's the plan of how to assemble the trailer. Also included is he shopping list which is around $150. However, if you decide to skip on the paint job and advertising othe sides it can be reduced by $50. Also, some parts on the list can be scavenged, like the milk crates, buckets, hose, plywood etc. reducing the cost even more.
Step 2:Assemble Top of the Trailer (part 1)This part holds the buckets in place.
Cut the plywood to appropriate size and dril l 6 holes on each side for the threaded rod. The way we measured everything out is by placing the milk crates on the plywospacing them out the way we wanted them and marking the spots to drill.
Then cut 2" by 2" into appropriate chunks and drill holes at the ends. We have 2 long ones going parallel to the plywood, then shorter ones perpendicular (so they holdthe buckets in place).
Then even shorter ones on the top of threaded rods which will later hold the crates.
Image Notes Image Notes
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1. This holds the bucket in place. Repeat 3 times.2. Drill 6 holes on each side for the threaded rod. Easy way to figure out theirplacement is by setting down the milk crates, spacing them out the way you needthem and marking the spots to drill
1. These will later hold the milk crates.
Image Notes1. End pieces for holding the crates.
Image Notes1. Washer, lock washer, and bolt on each side. Cap nuts optional.
Step 3:Assemble Top of the Trailer (part 2)We decided to sink the nuts into the wood on the 4 small pieces on the ends. The way you do it is by drilling a slightly larger hold on top of the one that is already therebut not the whole way through, then you hammer the bolt in there and screw the whole thing on as i f it was one big nut.
Use gorilla glue (or some other type of wood glue) to place medium length wood on top of the short chunks of wood that sit on the ends of the threaded rod. You couldscrew them in but these things are there only to prevent the crates from sliding back and forth.
Image Notes1. Sink the nuts into the wood.
Image Notes1. Wood glue these pieces together and clamp. Let sit for about 12 hours
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Step 4:Paint the Top of the TrailerThis step is optional but it will prevent the wood from rotting and make the trailer last much longer. In this case we put on 1 coat of primer and 2 coats of medium graypaint (indoor/outdoor, high gloss, latex).
Step 5:Bend the ConduitCut and bend the conduit into this shape using conduit bender. The curve on the right should be about the curve of a bicycle wheel. Trace a wheel on the floor with chand then slowly bend the conduit until its about the right shape using the chalk outline as a guide.
Image Notes1. Bike wheel will go here
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2. Hitch that attaches to the seat post will go here3. Attach to the trailer here
Step 6:Bolt on the Parallel Metal BeamCut the 8020 metal to appropriate size, drill 4 holes into it and bolt it to the bottom of the trailer. Make sure there is a little bit of metal sticking out on one side, that's whthe conduit is going to attach to. And, most importantly, make sure it is straight.
Step 7:Attach ConduitAttach the conduit with 2 bolts. Remember, the shorter end is the one that is getting attached to the trailer.
Step 8:Bolt on the AxelsPlace the thing Steel tube (which is going to be the axle) into the slot of 8020 metal and bolt it to the bottom of the trailer with long thin bolts. The easiest way to do it isfirst drill one hole in the center straight through both the steel and 8020, bolt it on temporarily, then drill the other holes so you don't get misaligned holes.
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Image Notes1. 1st put in just one bolt2. Then you can drill the other holes on each side, this way they are going to beperfectly aligned.
Image Notes1. View from the other side
Image Notes1. The whole thing complety and held in place with 3 bolts.
Step 9:Put in Pins to hold the WheelsPut on the wheel and mark spots on each side of it to dr ill. Put the pins into the resulting holds to hold the wheels in place.
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Image Notes1. Pin goes into each hole (4 total)
Step 10:Assemble the HitchThis is the means of attaching the trailer to your bike.
Plug the end of the conduit with a cork or a sliced up piece of hose you got. The bolt that is going to go through the conduit is going to help prevent it from going all theway in.
Then wrap a 2 foot long piece of hose around your seat post and bolt i t to the end of the conduit.
Image Notes1. This will prevent the conduit from scratching your seat post.
Image Notes1. 2 foot chunk of hose can be bolted to this end so it wraps around the seat post
Step 11:Put in the Eye BoltsPut in the eye bolts, 3 on each side. Make sure they are in the center of each slot that holds the bucket + milk crate.
Image Notes1. We later switched the eye bolts so they point the other way around (the eye facing up and rotated 90 degrees)
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Step 12:Attach the Kick StandThis step is pretty straightforward. Drill a hole in the plywood where you want the kickstand to go and bolt it on. We decided to put it on the side so it folds under thetrailer.
Image Notes1. Bolt straight through the plywood.
Image Notes1. Make sure it folds inside
Step 13:Finishing TouchesPut on the wheels. Put on, paint and stencil the side panels (optional). Get 2 foot bungees (6 of them) to hold the crates in place.
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Image Notes1. These side panels are optional. They could be used to advertise theorganization(s) that are going to use the trailer.
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Comments
7 comments Add Comment
CluthaDubh says: Mar 15, 2012. 2:53 PM REP
Is this plug going to help against surging during braking? like the simplicity.
GiggleWhiskers says: Mar 15, 2012. 8:48 PM REP
Well, mostly we put i t there so the conduit wouldn't scratch the seat post. We used another piece of rubber hose that we folded into a "U" shape and puaround the seat post with the ends of the "U" attached to the bolt you see in the picture. To make it adjustable we made several holes on one side of th"U" like a belt. It looks kinda like what this guy did: http://www.instructables.com/id/Hammer-Time-Bike-Trailer/step5/The-Hitch/
Originally we were going to use a heavy spring at the end of the hitch to help with surging but I think we got the wrong size spring or something at HomDepot so we had to settle for the hose.
CluthaDubh says: Mar 15, 2012. 1:34 PM REP
Like the schematics, would like to use them as a base for my own build, at the moment it's see what i can find and adapt.
GiggleWhiskers says: Mar 15, 2012. 8:29 PM REP
Awesome! Glad this is helping somebody
Kaptain Kool says: May 8, 2011. 6:26 PM REP
Awesome idea, how cool would it be if you made (or got others to help) an entire fleet of these in New York.
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GiggleWhiskers says: May 8, 2011. 7:33 PM REP
Thanks! Yea it would be cool, gotta have the organizations that would use them though. Like CSAs or community gardens. If you know any that coulduse it point them to this instructable :)
Kaptain Kool says: May 11, 2011. 4:19 AM REP
Sadly, I'm not involved in any community gardens, but if I was I would show them this instuctable!