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- SMT components: 315 degree C (600 F)
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- TH components: 370 degree C (700 F)
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3. Wait for rod temperature to reach the set value
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1. Applying solder/flux
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1. Solder
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- Solder wire should be placed between terminal and soldering rod
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its efficacy.
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- External flux (paste, liquid)
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- Inside solder wire (rosen)
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1.4. Timing / Sequence
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1 Timing / Sequence
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1. Sequence:
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1. Bring terminal of component to PCB pad
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2. Bring soldering lead + rod
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... | ... | @@ -53,9 +54,7 @@ Ontario Institute of Technology. |
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2. Removing lead after removing rod leads to ‘whiskers’ or even lead
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stuck to board.
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3. Heating for too long can damage component as well as PCB pads
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1.5. Mechanical
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1 Mechanical
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1. Do not apply pressure on the rod with your hand
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- A good solder joint happens because of temperature not force
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- e.g. broken rod in our lab
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... | ... | @@ -63,9 +62,7 @@ Ontario Institute of Technology. |
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- Need to buy
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3. Hot melt glue for mechanical strength.
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- Where is our glue gun?
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1.6. Safety
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1 Safety
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1. Personal
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- Eye protection
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- Splattering solder
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... | ... | @@ -80,9 +77,7 @@ Ontario Institute of Technology. |
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- Prefer desoldering wick over desol pump
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## Wiring and connectors
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2.1. Wiring
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-----------
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1. Wiring
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1. Selection of wire
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- Gauges based on max current
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- Insulation types
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... | ... | @@ -98,10 +93,7 @@ Ontario Institute of Technology. |
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- Ziptie holders
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- Avoid loose connections e.g. wire in hole.
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- Heat shrink sleeves vs insulation tapes
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2.2. Connectors
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---------------
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2. Connectors
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1. Start of every project
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2. Weakest link; Cause of most common problems
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3. Selection of connector
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... | ... | |