Australia Post Postie Bike

This is a simplified model of the Kyburz Electric Deliver Vehicle used by Australia Post.

It's made in several parts, so you can print each part in different colours. I've added pins and sockets to the major parts to simplify alignment when glueing them together. I used PLA and glued it together using CA glue, but I'd assume any filament and adhesive should work. Depending upon your printer & settings, it's possible the pins may be tight or loose in their corresponding holes - if so, just use a small drill bit to clean out the holes, or some sandpaper to make the pins slightly smaller. 

The STL files were exported straight out of Shapr3D in their original alignment, so you'll probably need to rotate them in your slicer before printing. The wheels have one flat side to simplify printing without supports. The front section (containing the front forks & mudguard) was initially a pain to print because I kept damaging it when removing the supports, but it worked fine when I printed it with the forks pointing upwards, using organic supports. 

The rear wheels are held in with pins, which if you're careful when glueing them not to get any glue on the wheel, will allow them to turn. The front wheel is held in with a 2mm metal pin, which is a press-fit into the forks, but will allow the wheel to spin freely. If you don't have any suitable pins, a small bullet-head nail or brad would work perfectly well. The nail head will hold it on one side, and a tiny dab of glue on the other side will hold it in place. If it's too long, you can easily cut it to the correct length with pliers etc.

I used organic supports, when printing the major parts, and external brims when printing the smaller bits (the axle pins and mirrors). I made the rear box hollow so it can be used as a pen holder.

My version in the photos was straight off the printer without any sanding or clean-up. A little work would make it look pretty good. 

Any problems, let me know, but everything should print and fit together with minimal work. Good luck.