Soldering 101 for VESC (incl. Video)

This guide will provide a basic overview of soldering and wiring connections, focusing on their importance in VESC builds.

:warning: DISCLAIMER: The VESC Bible is currently being republished and rewritten to encompass all necessary beginner guides. All guides with a beta tag are still preliminary and need to be vetted and reviewed by VESC experts.

Basic Soldering Tutorials

This video which an EXCELLENT starting point for all VESC and electronics beginners. If you are not sure, what tools and materials you need and how to solder properly, watch this video.

Other resources:

  • The Board Garage on YouTube offers videos on VESC builds, including BMS setup and configuration which may include soldering demonstrations.
  • Online Resources: A search for “basic soldering tutorials” will yield numerous results, including videos and articles, that can guide beginners through the soldering process.

Importance of Proper Soldering Techniques

Proper soldering techniques are essential for creating reliable and durable electrical connections in VESC builds. A poorly executed solder joint can lead to:

  • High Resistance: A bad solder joint can introduce high resistance into the circuit, reducing current flow and potentially causing performance issues or even component failure.
  • Intermittent Connections: Loose or poorly soldered connections can create intermittent signals or power disruptions, leading to erratic behaviour and safety hazards.
  • Corrosion: Insufficiently soldered joints can be susceptible to corrosion, further degrading the connection over time.

Tools and Components Required

The following tools and components are typically required for soldering and wiring in VESC builds:

  • Soldering Iron: A soldering iron with adjustable temperature control allows for precise heat application.
  • Solder: A lead-free solder with an appropriate flux core is recommended for electronics work.
  • Soldering Iron Stand: A stand provides a safe place to rest the hot soldering iron when not in use.
  • Wire Strippers: Used to remove insulation from wires, exposing the conductive core for soldering.
  • Wire Cutters: Used to cut wires to the desired length.
  • Helping Hands: A tool with adjustable clamps to hold components in place during soldering.
  • Heat Shrink Tubing: Provides insulation and protection for soldered connections.
  • Electrical Tape: Can be used as an alternative to heat shrink tubing for insulation.
  • Multimeter: Used to test connections for continuity and voltage.

Tips for Beginners

  • Practice on Scrap Components: Before soldering on your VESC components, practice on scrap wires and connectors to develop your technique.
  • Clean Surfaces: Ensure that the surfaces to be soldered are clean and free of dirt or oxidation.
  • Use Flux: Flux helps the solder flow smoothly and bond effectively to the metal surfaces.
  • Apply Heat Evenly: Heat both the component lead and the wire or pad to be soldered before applying solder.
  • Don’t Overheat: Excessive heat can damage components. Use the lowest effective temperature and work quickly.
  • Inspect Your Joints: After soldering, visually inspect the joint for a smooth, shiny surface and good wetting of the solder to the metal.
  • Test with a Multimeter: Use a multimeter to test for continuity and voltage to confirm that the connection is sound.

Conclusion

Soldering and wiring are fundamental skills for building and modifying VESC systems. By understanding the importance of proper techniques and using the right tools, beginners can create safe, reliable, and durable connections that ensure optimal performance and a safe riding experience.

2 Likes

A note regarding the soldering wire. No, they are definitely not all the same. Most hardware store will sell you almost pure tin soldering wire, that is because of the restrictions in regards to lead. Pure tin soldering is used nowadays mostly for water pipes for obvious reason, but the melting point is very high.

I would suggest anyone who wants to solder wires to specifically look for lead soldering wires, because of their lower melting points. It makes everything easier. However, do not breath the smoke, and wash your hands after each use.

I’d also highly recommend a high quality leaded solder. Cheap lead-free solder just feels starchy and just won’t melt as well, you will have a real hard time. Best to go on reddit soldering subreddit and look in their wiki for recommended solder brands and tools.

Do you have a link to a good recommendation?

Some of the recommended brands are Kester, MG chemicals, Chipquik, Multicore etc. Personally I’ve used a roll of MG chemicals 63/37 and it worked very well. You can get it on Amazon and the unit price is actually cheaper than the cheap Chinese solder.

Also see this stickied post regarding safety when working with leaded solder.

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Cries in European (leaded solder is banned here)

I live in the NL, no problem getting lead/tin. Bought mine on eleshop.

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Great tip! In general it would be great if we make some sort of shopping list and link to shops, which actually sell high quality electronics supplies. While Amazon is soooo convenient, I would rather stock up on quality wires, shrink tube etc

I won’t lie, a lot of decent stuff can be bought either on Amazon via non Amazon vendors mostly located in China, or simply Aliexpress.

You will have far more choices in terms of length, width, even color if that’s something important for you, for cheaper on Aliexpress.

Amazon still sells quite some decent wiring in various gauges, same regarding XT connectors for instance.