rickyjar
Member level 2
Surely, every electronic engineer was willing to throw their desoldering pump into the waste bin at times because of torn pathways, annoying recoil or constant suction. To avoid these problems, user “Gość” constructed his own desoldering pump.
At first, it was necessary to get an old 1kg fire extinguisher and a tomasetto electrovalve.
Body:
All the body consists of total four pieces of flat bars that were properly cut, drilled and welded. Two arms were welded to the bottom of the cylinder (the cylinder in the horizontal position) as a stand and two other to the top as handles to assemble the unit.
Tank:
The old fire extinguisher served as a tank. The valve was unscrewed and a trick nut was welded in, and a tube to assemble a hose was welded in the nut. Two more were matched with the tube. One of them was the same as the main tube (to assemble a vacuum switch) and the second one was thinner to accumulate underpressure.
Vacuum switch:
The whole switch is a piece of a flat bar, bar welded to assemble a vacuum pump from a Lada Waz 2106, spring, mechanism to tighten and regulate underpressure.
Pneumatics:
All the equipment, unit, cylinder, electrovalve, vacuum switch.
Impressions.
The soldering pump works very well. It sucks out more efficiently than a traditional one. The traditional one is no match to this one, it has no recoil, a solder does not hale to be sucked in. It is enough to press the switch and it works. One modification is intended that is to make a footswitch and add a microswitch to the vacuum switch. At the beginning, reed switches and relay connected in the same way as contactors with two buttons but it did not work properly. .
Total expenses:
About 60 PLN. There is no possibility to buy such a desoldering pump with such a suction power and so user-friendly.
Photos:
Video:
Link to original thread - Elektryczny odsysacz do cyny.