heated build chamber September 17, 2013 12:01AM |
Registered: 11 years ago Posts: 544 |
Re: heated build chamber September 17, 2013 12:18AM |
Registered: 11 years ago Posts: 313 |
Re: heated build chamber September 17, 2013 12:41AM |
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Re: heated build chamber September 17, 2013 12:47AM |
Registered: 11 years ago Posts: 544 |
Re: heated build chamber September 17, 2013 01:25AM |
Registered: 11 years ago Posts: 661 |
Quote
The build chamber 24 of the oven 12 is accessible through an insulated oven door 25. As shown in FIG. 2, the build chamber 24 has a floor and right and left sides which are surrounded by a heating duct 26. The heating duct 26 is formed of sheet metal and opens to the build chamber 24 at the top right and top left sides of the chamber 24. A pair of blowers 28 (one shown), located underneath the oven 12 on the right hand side, create a clockwise air flow path through the heating duct 26. Thus, the opening at the top right side of the chamber 24 is an air intake vent 30 and the opening at the top left side of the chamber 24 is an air exhaust vent 32. Two identical banks of six 750 Watt fin-strip heaters 34 are mounted in the heating duct 26 on the air intake side thereof. A venturi 36 is positioned in the heating duct 26 to create a straight flow pattern of air returning to the build chamber 24 through the air exhaust vent 32. The build chamber 24 is heated by convection as air is pulled through the heaters 34, circulated through the duct 26, and returned to the chamber. A sheaf of insulation 37 surrounds the right and left side, the bottom, and a back side of the oven 12 to keep in the heat (insulation 37 is removed in FIG. 1 for purposes of illustration). The build chamber 24 is designed to reach temperatures of at least 200° C. Preferably, a thermocouple and a thermal fuse are placed over the air intake vent 30 so that the temperature in the chamber 24 may be monitored, and, if the chamber 24 becomes too hot, the heaters 34 can be shut off.
Re: heated build chamber September 17, 2013 07:32AM |
Registered: 12 years ago Posts: 156 |
Re: heated build chamber September 17, 2013 08:03AM |
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Re: heated build chamber September 17, 2013 08:37AM |
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Re: heated build chamber September 17, 2013 05:15PM |
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Re: heated build chamber September 18, 2013 03:56AM |
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Re: heated build chamber September 18, 2013 06:12AM |
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Re: heated build chamber September 18, 2013 10:51AM |
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Re: heated build chamber September 18, 2013 01:20PM |
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Re: heated build chamber September 18, 2013 01:56PM |
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Re: heated build chamber September 18, 2013 09:58PM |
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Re: heated build chamber September 26, 2013 02:14PM |
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Re: heated build chamber September 27, 2013 08:37PM |
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Re: heated build chamber September 28, 2013 05:24AM |
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Re: heated build chamber September 28, 2013 12:30PM |
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Re: heated build chamber September 28, 2013 01:08PM |
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Re: heated build chamber September 28, 2013 01:28PM |
Registered: 11 years ago Posts: 246 |
Re: heated build chamber September 28, 2013 02:16PM |
Registered: 12 years ago Posts: 1,450 |