Tools and materials

There are some materials necessary in order to make the cargo wagon fully functional. Suggestions are provided where you can acquire these, but they should be generally available. However if you find that passing electricity is too much hasstle for you to build you can skip it. If you don't need electricity for any other wagons behind the coal wagon you don't need to wire up the connectors. You can just insert magnets into them and that is it. But I still hope you will make it with electricity, that is why I did my best to explain in my tutorials the best that I can :)

• Magnets 6mmx3mm 2pcs - You will need these to make connectors. Locomotive needs 2. They are pretty cheap, especially if you buy in bulk. Check out on AliExpress.
• Flat cable - You will need this for wiring the vehicles. Try to look for old used IDE flat cables. I have tons of them in my PC scraps. If you do not have any ask your friends or search on the internet for "used IDE flat cable". Worst case scenario, you can buy cheap ones from AliExpress. We do not need to much wire from a flat cable, so one IDE flat cable will provide wiring for a lot of wagons and locomotives.
• Super glue
• OPTIONAL - Double sided sticky tape - You will need this to stick the wheel carriage to the bottom of the wagon. That way it is removable and replaceable.

Aside from usual tools used for 3D printing, here is a list of additional tools you will require to make the locomotive:

• OPTIONAL - Thin tweezers - makes life easier when assembling connectors.