Picture of Make a simple bike-flag-holder with a 3D printer
A simple clamp for holding a flag on a bike trailer, designed in CAD and printed on a 3D printer.

Step 1: The Problem

Picture of The Problem
I like pulling the kids in a bike trailer, but the old trailer I bought didn't come with a flag. I'm sure you are an excellent driver, but have you seen how the rest of them drive? So I went to the local bike shop and bought the trailer flag they had.
The flag pole seated in a metal bracket, which seated on the axle between the hub and the frame of the trailer. The metal bracket lasted about two months before it got squished and bent and loose.
dscott43 years ago

I would love to see it added to the 3D print group I have just started


BearForce16 years ago
I think the 3D printer is a little too much just to make a bike flag holder. Cool idea though. :|
Cool, but how much are thos printers?? i want 1 :-)
That type starts at about $19k, and the print media cost is typically ~$5-$10 per cubic inch.
EnigmaMax oskay7 years ago
oi. that sucks. should make an instructable on how to make one.
There is a cheaper solution. Ok, in the near future, I should say. It is called RepRap for Replicating Rapid Prototyper.
Infos are here here.
Looks very promising to me. I will try to build one as soon as they solved most of their problems.
those things (the 3D printer and CAD) are damn expensive but reeeeeaaaallly cool we have em at our skool for the drafting and design class i make stuff for my bike all the time
ivanirons7 years ago
Great excuse to play with the 3D printer. Nothing like thinking of something, modeling it, then using it!

Have a good one,
Rapid Prototyping Info
at my school we have a machine similar to this, but our printing trays are plastic.
Couldn't you just do the same thing with a block of plastic and a drill press? Still, cool concept withthe 3d printer thing. I'm going to build a CNC machine this summer, so it'll be nice to have a prototyping machine like that.
Doc Workingday (author)  mothflavour28 years ago
Yes I agree it could have been done much more simply. This was more an excuse to play with the 3D printer than anything else. :-)