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Flamethrowers - reliable ignition
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miles&Jules
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Joined: 19 May 2010
Posts: 3959
Location: ipswich QLD


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Anyone tried the coils of a hair dryer/ heatgun- they glow red hot when connected to a battery💥
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Post Sun Nov 27, 2016 4:15 pm 
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Daniel
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Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast


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Yep, the gas cooled it down too much.

Post Sun Nov 27, 2016 4:48 pm 
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chunkulator



Joined: 27 Jul 2016
Posts: 211


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Yes I tried nichrome wire too, but couldn't get ignition.

Post Mon Nov 28, 2016 1:52 pm 
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pilleya



Joined: 31 Mar 2016
Posts: 89
Location: Sydney


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If the gas cools it down too much, you need more current or thinner nichrome wire. I have an entire roll of what is probably 0.9mm at home. I can get it to melt in about 2 seconds on a small 12v SLA, and it melts at 1500 degrees.....

Post Mon Nov 28, 2016 7:23 pm 
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Glen
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anyone tried a micro controller to pulse the gas solenoid on and off for a preset time to help ignition? Never tried it but would seem a plausible way to get the ratio correct enough to ignite?
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Post Mon Nov 28, 2016 8:26 pm 
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pilleya



Joined: 31 Mar 2016
Posts: 89
Location: Sydney


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Doesn't seem like it would be too difficult to use a small mosfet board to control the gas solenoid valve via an arduino. You could most likely get the sequence to start when the ardunio senses PWM from the receiver.

Post Mon Nov 28, 2016 10:10 pm 
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