Electronics > Projects, Designs, and Technical Stuff
Solder paste and flux dispenser
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pvit:
About needle caps. I never seen before silicone heat shrink tubes https://atopelec.aliexpress.com/store/group/Silicone-Heat-Shrink-Tubing/118669_505069419.html. Those should be ideal for inner layer. I did not tied yet, but ordered. Will post result.
pvit:
Tested silicone tubes for inner layer. Certaintly better than ordinary ones. Recommend instead of previous recipe.



Also, found PVC tube for dispencer's display. It looks more clear:

MarkR42:
Great, but you really want a remote control e.g. foot switch.

Activating a button on the actual device is not convenient, if you're trying to simultaneously position it very accurately. This is why the compressed-air driven ones all have a foot switch.

But as I usually apply solder paste with one hand, my other hand is actually free to press a button or whatever, I will have any lights/ magnifier / board holders clamped so I don't need to hold those.

You just want it activated by anything *except* a button on the device.

NB: I really like the idea of a lead screw + small syringe, much more efficient than compressor+ dispensing machine + loads of tube flopping about all over the bench.
pvit:

--- Quote from: MarkR42 on February 10, 2020, 09:48:59 am ---but you really want a remote control e.g. foot switch.

--- End quote ---

Current solution is to solder wires with pedal connector in parallel to button. If you see schematic, it contains required filters & protection units. I did not added connector on PCB, because it occupies a lot of place and is demanded not too often.

In other words, such request is known and solution exists. But i'm open to any suggestions how to improve.
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