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heater_fabrication [2020/02/25 12:53] gerryheater_fabrication [2020/02/25 12:58] (current) gerry
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 {{ :heater:heater_parts_before_assembly.jpg |}} {{ :heater:heater_parts_before_assembly.jpg |}}
  
-==== Resistor Location ====+===== Resistor Location =====
  
 The leads of the heater resistor should not protrude far beyond the edge The leads of the heater resistor should not protrude far beyond the edge
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 Change the position of the spreader in the vise, and use a file to remove the burr. Change the position of the spreader in the vise, and use a file to remove the burr.
  
-Make sure the surface of the spreader is above the vise.  You don't want to dull the file or scratch the vise by filing the vise instead of the burr.+Make sure the surface of the spreader protrudes above the vise jaws.  You don't want to dull the file or scratch the vise by filing the vise instead of the burr.
  
 {{ :heater:heater_drill_burr_file.jpg |}} {{ :heater:heater_drill_burr_file.jpg |}}
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-==== Attach the resistor to the heat spreader ====+===== Attach the resistor to the heat spreader =====
  
 Secure the resistor to the heat spreader with the small screw.  The screw should be snug.  Be careful not to over-tighten the screw as you may strip the soft Aluminum.  Secure the resistor to the heat spreader with the small screw.  The screw should be snug.  Be careful not to over-tighten the screw as you may strip the soft Aluminum. 
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-Before proceeding with the assembly, use a multimeter to verify that the leads have been attached securely and that the resistor is still functioning.+Before proceeding with the assembly, use a multimeter to verify continuity of the heater assembly.  You want to make sure that the leads have been attached securely and that the resistor is still functioning.
  
 {{ :heater: heater_multimeter_verify_resistance.jpg |}} {{ :heater: heater_multimeter_verify_resistance.jpg |}}
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- +Use a multimeter again to test the continuity of the heater assembly.
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-Do not heat the heat shrink tubing until the instructor +
-adds sealant to the wires. +
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-Heat the free end and crush it in a vise to seal it +
  
heater_fabrication.1582664000.txt.gz · Last modified: 2020/02/25 12:53 by gerry