User Tools

Site Tools


hot-end-thermal-management

Link to this comparison view

hot-end-thermal-management [2013/01/15 08:38]
buildrob
hot-end-thermal-management [2013/04/04 05:13] (current)
buildrob
Line 105: Line 105:
 Looks like rubbish, but it insulates the heater block fairly well. Looks like rubbish, but it insulates the heater block fairly well.
  
-Another alternative to taping the 19mm piece of material to the heater block itself is to instead tape it to the other 14mm strip. The position of the 19mm piece in this option is adjusted so that it extends down the side of the heater block to match the width of the 14mm skirt (which is put around the other three sides as described above). This should give the appearance of a continuous skirt all the way around the heater block which is subjectively ​slightly neater looking. The bottom of the heater was left open primarily again for aesthetic reasons (the cooling fan won't reach the bottom and heater block is now insulated on all the other sides). ​+Another alternative to taping the 19mm piece of material to the heater block itself is to instead tape it to the other 14mm strip. The position of the 19mm piece in this option is adjusted so that it extends down the side of the heater block to match the width of the 14mm skirt (which is put around the other three sides as described above). This should give the appearance of a continuous skirt all the way around the heater block which is subjectively slightly neater looking. The bottom of the heater was left open primarily again for aesthetic reasons (the cooling fan won't reach the bottom and heater block is now insulated on all the other sides). However if you are using a PLA cooling fan then you might consider covering the bottom side as well as there is a lot more indirect airflow.
  
 {{:​buildrob_hot_end_thermal_management_1.jpg?​400}} {{:​buildrob_hot_end_thermal_management_2.jpg?​400}} {{:​buildrob_hot_end_thermal_management_1.jpg?​400}} {{:​buildrob_hot_end_thermal_management_2.jpg?​400}}
  
 The threaded tube above the heater block is left uncovered, so it can be cooled. ​ If it were covered, the thermal barrier (the brown material above it) would probably overheat and leak molten plastic. The threaded tube above the heater block is left uncovered, so it can be cooled. ​ If it were covered, the thermal barrier (the brown material above it) would probably overheat and leak molten plastic.
 +
 +It should also be remembered that the importance of such insulation is relative to the hot-end temperature you are trying to reach and the ambient temperature of the room. If you bought a PLA-only Bukobot then because much lower temperatures are required by PLA, thus far less insulation & shielding is needed, that is, ceramic tape based insulation is likely to be overkill. Simply wrapping some Kapton tape around the heater block and managing air flow from the cooling fan is likely to be sufficient - that seems to be how many other people deal with the problem.
  
 //The contents of this page may be re-used under any of the following licenses: ​ The [[http://​creativecommons.org/​licenses/​by-sa/​3.0/​|Creative Commons Attribution-ShareAlike 3.0 Unported License (CC BY-SA 3.0)]], or the [[http://​www.gnu.org/​copyleft/​fdl.html|GNU Free Documentation License (GFDL, version 1.2 or later)]].// //The contents of this page may be re-used under any of the following licenses: ​ The [[http://​creativecommons.org/​licenses/​by-sa/​3.0/​|Creative Commons Attribution-ShareAlike 3.0 Unported License (CC BY-SA 3.0)]], or the [[http://​www.gnu.org/​copyleft/​fdl.html|GNU Free Documentation License (GFDL, version 1.2 or later)]].//
hot-end-thermal-management.1358260733.txt.gz · Last modified: 2013/01/15 08:38 by buildrob