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Bicycle Cargo Trailer Build – Take2

by on Feb.27, 2011, under Bicycles, Projects

In our last episode, I was failing at welding and making things even. In this episode, we’ll try something new. This time, things turned out pretty well!

Trailer without hitch

I did some reading and found that the wire that came with the cheap Harbor Freight welder was pure garbage. I’d have much better luck with Lincoln Electric flux-core instead of the HF stuff. I picked up a one pound spool for about $10. I also picked up 40 feet of 1/2 inch square steel tube. It’s a 1/16inch side wall.

Add to that a 4inch angle grinder and a 6inch cut-off saw and we’re in business. I’d be cutting and grinding metal like a pro pretty soon. Sure as hell beats a vice, a hack saw, and a couple of hand files.

So I got to work. The cargo box dimensions would be 36x22x12. Cut up some metal. Mitred the ends, and did a bit of welding. Before I knew it, I’d have the top and bottom rectangles done. My welds weren’t gorgeous, but they were certainly better than my last attempt:
Welds with the new wire.

A little grinding to smooth out the welds produced this:
Corner after grinding

The top and bottom rectangles came together in about an hour.
Top and bottom rectangles

Next day, I moved on to getting all of my metal cut. It didn’t take me long. The worst part was having to get out an allen wrench to reset the stop on the cut-off saw a few times. 45, no 90, no 45, no 90… ARGH! Got all of the metal cut, burrs removed, and ready for welding:
Metal cut and ready to weld

Spent a couple of hours this weekend making the wheels’ drop-outs, welding, and then grinding everything down. As it sits, the trailer is ready to have the mount made and attached (not sure about the design, yet). And I still need to find a bottom and sides for the thing. Here is how she sits, now:
Trailer box done. Needs hitch.


4 Comments for this entry

  • Da'Mama

    Looks good! The only thing that will make it perfect is a bucket of 9 inch yellow lake perch.

  • William Harkey

    i would like to know if i can have list for this trailer? please email me as soon

  • simmy

    Email you a list? Not sure I can help you there. What I CAN tell you is that the hitch is just a few replacement parts for Burley. They make bike trailers. The tow arm is a 1/2 inch square tube. The rest of the frame is 1/4 inch square tube. The grate (not pictured, currently), I picked up from a customer that does fence work.

  • William Harkey

    hey can i have info so i can build this trailer by myself please reply me as soon. like direction what i need for this

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