| Electronics > Projects, Designs, and Technical Stuff |
| A Simple Electrical Powered Vacuum Desolder Suction Pump - Beginner Level |
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| Mechatrommer:
ok.... took some effort and time here to complete this report... esp the first picture... but, just for the sake of sharing. WARNING: this is the simplest circuit around, so for PRO, dont expect to learn anything, but CC are welcomed. WARNING: its ugly! its gross! so dont expect the luxury of Altium, PCBCart or Polycase etc. intro: I've been using Vacuum Desolder Suction Pump (Manual) and try to create the electrical powered version using PIC Microcontroller. So i got some pictures here, but i think, its better if i start with this one, as majority here expecting and are EE literate people. How it works? 1) We press the S1 (switch) for the first time, the motor will pull the Suction Pump to energize it (pictures follow) 2) There are S2 and S3 to detect the position of the Pump Handle, which upon closing, the motor stop pulling or releasing (S3, S2) 3) The next S1 press, the motor will release the handle even further, which in effect, pulling a string connected mechanically, to push the blast button on the Desolder Pump (Yellow Button) 4) After the blast, motor will automatically re-energize the pump as in Step (1) and (2) and back to Step (3) again and again. |
| Mechatrommer:
Here is the "photoshopped" picture i use to make the PCB, the brown colored are the copper running below, the blue are the components (above), the yellow are the conductor running above. and here are some of the real deal (plssss, dont laugh): |
| Mechatrommer:
and here is the source code :) http://www.ximplify.com/members/soasystem/2010593151.c Hope some beginners will find the info usefull :) Cheer! p/s: for the LM317, pic12f509, C945. you can google the net for the datasheet my favourite http://www.datasheetarchive.com/ |
| Pyr0Beast:
Seems nice. How is with the performance on such a long tube ? Might use windshield wiper motor. They are really cheap and pretty strong :) |
| Mechatrommer:
"Might use windshield wiper motor" thats the motor for "black screen for my previous car rear mirror, i dont know what to call in english, its like a curtain that you can move up or down by the motor to block/allow sun light from coming in. the curtain is like semi transparent. The motor got built in gearing, casing and shaft. so i just use it as it is with no extra effort. Quite strong with its low gearing ratio. "Seems nice. How is with the performance on such a long tube ?" really really bad! that i dismiss this project right after i completed the software and fully tested it. The suction performance is really poor. Since from observation, the suction mechanism should be assited by certain level of shock/vibration on to the PCB (just as when we use it manually) maybe to lift a little bit the molten solder up and easily being sucked up. One of main reason i built this stuff, is to remove that vibration, coz i really hate it, its like cracking the component next to it while sucking. it turn out, it is this vibration that help the suction performance. Really Bad Design Criteria! I concluded it as mechanical failure. But the circuit might be applicable for another usage, i dont know, use your imagination :) |
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