CircuitMess, inc.

Yes, all solder in CircuitMess kits is lead-free and RoHS compliant; still solder in a well-ventilated room.

Is your solder lead-free?

Usually a dirty or oxidised tip: clean it while hot and re-tin it. If it still will not heat, send us a video and we will sort out a replacement.

My soldering iron is not working. How can I fix it?

What to do if you have soldered a pin header to the wrong side of the board.

I have soldered the pins to the wrong side of the board. How do I turn it around?

Clear a solder bridge with flux and a desoldering pump or wick, or reheat and drag the iron away.

I messed up a soldering joint and the solder is touching two pins. How do I fix it?

That is oxidation: clean the hot tip on brass wool or a damp sponge and re-tin with fresh solder.

What should I do if my soldering iron tip turns black and stops melting solder?

Yes: breadboard-test parts, dry fit them on the PCB, and solder low-profile components first.

Is there a way to test components before I solder them?

Adjustable goggles that shield your eyes from solder splashes and trimmed component legs; no certified safety-standard rating is published.

Protective Goggles — Frequently Asked Questions

Size, heat resistance, anti-static properties, flexibility and cleaning for the CircuitMess Silicone Work Mat.

Silicone Work Mat — Frequently Asked Questions

What is in the Complete Workshop Bundle: Tools Pack, Silicone Work Mat and Protective Goggles, and when you need the Tools Pack.

Complete Workshop Bundle — Frequently Asked Questions

The Mars Rover kit contains no tools, so here is what the Tools Pack holds and when you actually need it.

What tools do I need to build the Mars Rover?

What comes in the Electric Screwdriver box, how to charge it, its speed and torque, and whether you actually need one.

Electric Screwdriver: what is in the box, charging and use

The lab coat comes in size L only, fits 136 to 145 cm, and is machine washable on a warm cycle.

Children's Lab Coat: sizing, fit and washing

Albert Gajsak

The Tools Pack, the work mat, goggles and soldering technique.

Tools and soldering

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