LED Work Party - Get Those Strands in Shape! v2.0
Feb 6, 2014 4:45:45 GMT
Post by abraxas3d on Feb 6, 2014 4:45:45 GMT
Cliff, Andrew, Jessica, Paul, Abraxas, Jeff, and Kerrin and anyone else interested in LEDs, lighting, and programming:
Proposed work party for Tuesday 11 February 2014 5:30 - 7:30.
Drop by whenever you can to help test and repair LED strands for Sol Diego/CORE.
Bring your favorite soldering equipment. :+)
Party at Paul's Place
5371 Carmel Knolls Drive
San Diego, CA 92130
House phone:
858 925 7073
Report from first meeting:
Photos here! www.flickr.com/photos/w5nyv/sets/72157640566270585/
Steve Frost, Cliff, Michael Easton, Abraxas3d, Brandie, and Paul attending. Thank you all for coming out and working on the LEDs. Please accept my apologies for the meeting going over on time. We will make efforts to not let this happen in the future. Your time and patience are valuable commodities, and we greatly respect them.
Two types of solenoids available for the project were investigated. The “printer” solenoids from Cliff drew 0.5 amps at 6 volts, and 1 amp at 9 volts. The “pallet magnet” sample solenoid from Abraxas3d drew 30mA at 5 volts and 20 mA at 3 volts.
Strands of LEDs were tested and repaired with splicing, hot glue, and shrink wrap tubing.
Here are the stats:
25 "good" strands of 18 LEDs each, tested and physically inspected, including several that were repaired during the session. One of these is two strands of 9 LEDs with connectors in the middle.
13 "bad" strands of 18 LEDs each, with various faults detected and not yet repaired. Each is tagged with the detected fault(s).
1 strand of 14 (working) plus a fragment of 3 (untested).
Faults detected included:
- many strands with two of the wires cut near one or the other of the connectors, probably for power distribution.
- strands with staple damage to one or more wires
- strands with wires apparently yanked out of the LED sealed unit
- crushed LED units
- LED units with apparent electronic behavioral problems. Missing colors, failure to pass through data signals, etc.
Peculiarities noted:
- some strands are fitted with replacement connectors, and the short stubs of wire that came with the connector use a different color code than the wires in the strands.
- the spacing between LEDs on these strands is not very consistent. We didn't measure them all, but a spot check shows 13" to 19" between LEDs.
Brandie learned how to solder, Michael learned about how to use a multimeter.
Next work party was scheduled for 11 February.
Proposed work party for Tuesday 11 February 2014 5:30 - 7:30.
Drop by whenever you can to help test and repair LED strands for Sol Diego/CORE.
Bring your favorite soldering equipment. :+)
Party at Paul's Place
5371 Carmel Knolls Drive
San Diego, CA 92130
House phone:
858 925 7073
Report from first meeting:
Photos here! www.flickr.com/photos/w5nyv/sets/72157640566270585/
Steve Frost, Cliff, Michael Easton, Abraxas3d, Brandie, and Paul attending. Thank you all for coming out and working on the LEDs. Please accept my apologies for the meeting going over on time. We will make efforts to not let this happen in the future. Your time and patience are valuable commodities, and we greatly respect them.
Two types of solenoids available for the project were investigated. The “printer” solenoids from Cliff drew 0.5 amps at 6 volts, and 1 amp at 9 volts. The “pallet magnet” sample solenoid from Abraxas3d drew 30mA at 5 volts and 20 mA at 3 volts.
Strands of LEDs were tested and repaired with splicing, hot glue, and shrink wrap tubing.
Here are the stats:
25 "good" strands of 18 LEDs each, tested and physically inspected, including several that were repaired during the session. One of these is two strands of 9 LEDs with connectors in the middle.
13 "bad" strands of 18 LEDs each, with various faults detected and not yet repaired. Each is tagged with the detected fault(s).
1 strand of 14 (working) plus a fragment of 3 (untested).
Faults detected included:
- many strands with two of the wires cut near one or the other of the connectors, probably for power distribution.
- strands with staple damage to one or more wires
- strands with wires apparently yanked out of the LED sealed unit
- crushed LED units
- LED units with apparent electronic behavioral problems. Missing colors, failure to pass through data signals, etc.
Peculiarities noted:
- some strands are fitted with replacement connectors, and the short stubs of wire that came with the connector use a different color code than the wires in the strands.
- the spacing between LEDs on these strands is not very consistent. We didn't measure them all, but a spot check shows 13" to 19" between LEDs.
Brandie learned how to solder, Michael learned about how to use a multimeter.
Next work party was scheduled for 11 February.