Exact match. Not showing close matches.
'[OT]: Hot air pencil'
Peter L. Peres
|part 1 1579 bytes content-type:text/plain; charset=us-ascii (decoded 7bit)
Content-Type: text/plain; charset=us-ascii
Here are the promised images of my attempt to make a hot air pencil from
Weller iron parts. These items spent about six months working (kind of)
and were shelved for good. The year was 1994 or 1995.
Complete view of the device. The handle of the iron has melted, it used
to be straight before. The white box is the aquarium pump (with two
outlets). The green parts are aquarium air hose 'T' joints. The two film
cans hide a certain kind of balloon. It was supposed to smooth the
airflow (which comes in pulses from the pump).
Two views of the front end of the tool. As I have said, the original
heater only lasted for a few minutes. It was replaced by a spiral made
of 2A wire (1/10 of the length of 220V 500W heater wire), fed with 24V
ac. The small screw retains the front end of the spiral. The spiral is
fed between the body of the element and an internal wire that runs
insulated up to the beginning of the airhose in the handle, where it
pierces the hose, and is connected to the other power wire.
This device had serious problems:
- It made too much heat (about 50W)
- The pulsed airflow tended to move small parts after melting the solder
- The heat was so intense that the handle melted and the airhose was
replaced once a week or so (by cutting the melted part and splicing it
in the handle).
Wear this in good health and let's hope that you will not make the same
mistakes I made.
part 2 10703 bytes content-type:multipart/related; boundary="------------19CB46E7F3BB9027AF20744F" (decode)part 3 154 bytes
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics
More... (looser matching)
- Last day of these posts
- In 2001
, 2002 only
- New search...