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Single Wheeled Bike Trailer

Step 3Trailer Frame Parts

Trailer Frame Parts
The next step was cutting the following pieces using the electrical conduit:

bottom frame (1)*
top frame (1)*
horizontal supports (3)
angled support (1)
vertical supports (2 large, 2 small)
fork supports (3)
stress spars (2)
wheel guard (1)*

*These are U shaped that required being bent with the pipe bender.

I wanted to have a trailer that was 16" wide (to accommodate the tub I had planned on using) so I took a piece of electrical conduit, cut it to length (~72") and then, using the pipe bender, bent it so that it was a U shape. I had a little difficulty getting the U to be even (the bend was tighter on one side vs. the other, as seen in the picture), but after a few attempts at bending/straightening, I was able to get it close enough.

Once I got the bottom frame cut and bent, I did the same thing for the top frame. I cut a piece of conduit that was ~48" long and bent it to match the bottom frame.

NOTE: The radius of both the top and bottom frames is 8" (to make a 16" frame). If you want a different sized frame, make the radius of your frame 1/2 the width.

I then measured and cut the horizontal, angled, vertical and fork supports to size, followed by the wheel guard. I found it easier to measure and cut these pieces once I had the two frames cut and shaped vs. cutting everything to plan and then having to figure out how to deviate from the plan if the frame wasn't true...which it wasn't.

(At this point in the process, I didn't realize I was going to use stress spars and had only planned on three vertical supports, so I didn't cut them yet. That being said, if you're making your own, you might as well cut these now.)
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Author:samfelis