So you're going to need some stuff,
Very few raw materials went into this but the few that did are...
- Car wheels, obviously!
- Some mild steel tubing, 1 1/4" and 3/4" about 4 meters of both
- A donor bike
The donor bike was used because it was an easy way of getting all the bicycle parts that were needed, after all it is a bike! also there are some bits of the frame that have very precise dimensions, the inside of the head tube and bottom bracket shell where the bearings go have what is called an interference fit meaning the bearing cups are pressed in and won't fall out, the tolerance of an interference fit is a tiny amount something in the hundreds of a millimetre, I would never be able to create these dimension with the tools I have so it was easier to cut these parts from an old frame, you can see in the third picture all the parts that I used from the BMX.
Again I didn't use that many tools to build the bike but here's a little list.
- A welder, any welder will do as long as it sticks metal together, I have a MIG welder
- An angle grinder with cutting and sanding disc's, I found a flap disc work best for sanding
- Measurement devices, tape measure, vernier gauge
- A drill and a couple of bits
- Spanners and Allen key's for the bicycle parts
- And a hammer, bigger ones are more fun but smaller ones still do the job
I also used a bench grinder and belt sander but you can do it all with the angle grinder if needs be.
And of course there's some safety stuff, goggles, ear defenders, welding mask and gloves, and a fire extinguisher.
I didn't start out with the extinguisher that was a later addition after my shirt caught fire while cutting with the grinder,
I have figured out that all these tools want to do is hurt you, please be sensible, concentrate on what you're doing, wear eye and ear protection, ask someone for help if you're not confident and don't weld while wearing shorts, those hot bits of metal will find their way into your shoes, trust me.