I had ten woodturners sign up for a "make your own woodburner" workshop. We used car battery chargers connected to light dimmer switches as the power supply. Then we made handpieces on the lathe.
As you can see from the above picture my workshop is a busy looking place.
Many thanks to Harry who arrived with a completed woodburner but was a great help with the electrics. Sorry about your charger Ron. I'm sure you will get a charge out of the story sometime...
The resistance wire I used was from a stainless steel boat cable as used for stays. One multistrand cable provides a plethora of wire for the pen tips. This design is from the Graeme Priddle style self made brands. The bit of extra copper acts as a heat sink to keep the heat away from the operator. However it also reduces the operator's control over the burn. So more sophisticated burners can be made - stay tuned.
Using fine brass tubing will enable one to get the tip closer to the operators hands.
Here is a link to a full description of the woodburner we were copying: Graeme Priddle style wood vaporizer.
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