Vex Flame finding

[charlie1218]

Remember, no non VEX KOP (kit of parts). We have 2 flame sensors btw

[yongkimleng]

Okay basis of a flame emits lots of IR

So using "line tracer" which are actually IRs, make a nice tube around the IR window to block out ambient light. Maybe want to tweak/mod it to disable the IR emitter.

Similar to the above post on putting a tube around light sensor but I think IR may be better suited

cheers

[EricH]

Originally Posted by yongkimleng

Okay basis of a flame emits lots of IR

So using "line tracer" which are actually IRs, make a nice tube around the IR window to block out ambient light. Maybe want to tweak/mod it to disable the IR emitter.

Similar to the above post on putting a tube around light sensor but I think IR may be better suited

cheers

He can't use anything outside a VEX starter kit. (Other than the light sensors and some extra VEX sensors.)

However, there are some black rubber spacer-type things (axle blocks and the like) that might work, if bolted together...

[charlie1218]

BTW these are not just the line sensors, but those photoelectric sensor modules aswell.

[Foster]

Remember, no non VEX KOP (kit of parts). We have 2 flame sensors btw

I figured if it was an event that had flames that there would be some level of slack from the "ONLY VEX KOP" rule.

1)Take the nut driver tube and cut the narrow end off. This will leave you with the wide end that just covers the sensor and about 2" of focus tube. At $4.99 each, this is not a cheap solution.

2)Take the rubber mat and wrap four turns around a 1/2" dowel. You are trying to get the little nubs to fit into the mesh. Secure with the black zips.

3)Take two or three intake rollers and using the black zips make them into a tube. Drill a 3/8" hole in the center.

Mounting is up to you.

Post a picture of what you finally do.

[charlie1218]

Originally Posted by Foster

I figured if it was an event that had flames that there would be some level of slack from the "ONLY VEX KOP" rule.

1)Take the nut driver tube and cut the narrow end off. This will leave you with the wide end that just covers the sensor and about 2" of focus tube. At $4.99 each, this is not a cheap solution.

2)Take the rubber mat and wrap four turns around a 1/2" dowel. You are trying to get the little nubs to fit into the mesh. Secure with the black zips.

3)Take two or three intake rollers and using the black zips make them into a tube. Drill a 3/8" hole in the center.

Mounting is up to you.

Post a picture of what you finally do.

NO slack, only KOP

[rhoads2234]

set up the 2 light sensors at the rough level of the candle and as far away from eachother as the dimesions allow. The 2 senors should face slightly inward if possible
Compare the readings of the 2 sensors and give more power to the motor on the same side as the reading with more light (I believe that lower #s are bright light but I am not sure)
This should center you on the candle - Put in code to stop when you cross the white pad around the candle otherwise you will run right into the candle

I recommend trying to narrow the range of vision for the sensors. If you can only use KOP see if a couple lock plates (without the center piece which actually put the axle through) gives you a wide enough range... I think that hole in the bearing flats is a little too narrow.

Tell me if it Works! and good Luck!

[rhoads2234]

Originally Posted by charlie1218

NO slack, only KOP

do you mean you can't even modify the parts? ouch!

[charlie1218]

We cant cut, twist and do whatever, but we cannot add pieces.