Cutter Electronics: Complete DIY COB kits

welight

welight

Well-Known Member
BOBBY_G said:
hey mark are next batch still mid-may?
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Mechatronix are shipping tomorrow 150 pcs of the Clear Alum version of the heatsink and 1000 pcs of the black on the 12th May. We did all our thermal testing on the clear so this works as well as the black
Cheers
Mark
 
welight

welight

Well-Known Member
BobCajun said:
Just out of curiosity, why don't you sell the Meanwell drivers? Seem to be the "industry" standard. Get a special deal with the Pairui guys?
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I cant get a price on the Meanwells that makes the total kit price attractive. Nothing wrong with Meanwell obviously, but they are not the only game in town. I also have stock of the LSD drivers but only 200 watt
Cheers
Mark
 
S

sinnamon

Member
guys, i conncted dc+ (red cable) to minus on the first cob, then plus to minus on the rest of the cobs and lastly plus to dc- (black cable) on the driver, and it doesnt fire. have i done something wrong? i havejust insulated the dimmer cables. arghhh, wanted to impress the wife! pls help!
 
Airwalker16

Airwalker16

Well-Known Member
sinnamon said:
guys, i conncted dc+ (red cable) to minus on the first cob, then plus to minus on the rest of the cobs and lastly plus to dc- (black cable) on the driver, and it doesnt fire. have i done something wrong? i havejust insulated the dimmer cables. arghhh, wanted to impress the wife! pls help!
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Ya. Positive wire goes to first cobs pos, then connect with any wire from that cobs negative to next cob pos. When you're done, last cobs negative goes to drivers neg. You just need to switch your leads places.
 
S

sinnamon

Member
hey th8anks dr airwalker16, theyre working now and man, are they bright! gonna fry my ladies for sure. how about using a regular household dimmer, like one for halogen lamps - think that would work?

thanks again, db
 
S

sinnamon

Member
yeah, ive seen it bobby_g but its a hassle for me to get,it here and im kinda anxious to get the lamps up and running asap. so any chance i could,use a regular dimmer?
 
Airwalker16

Airwalker16

Well-Known Member
sinnamon said:
yeah, ive seen it bobby_g but its a hassle for me to get,it here and im kinda anxious to get the lamps up and running asap. so any chance i could,use a regular dimmer?
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No bro. You need a 100K ohm pot AND a 10K ohm resistor.
20160212_220215.jpg
This pic is actually 2 drivers on a 50k pot and a 5k resistor.
 
GrumpyToker

GrumpyToker

Well-Known Member
Nice studio set up!

Any suggestions on "golden rule" of spacing between cobs?

Also what about those of us using 5 cobs in an "H"configuration?

From my measurements over 4 tomato cages using 5 cobs in an " H" configuration seems the four corner cobs 18" apart would put each cob in the center of each tomato cage. The fifth cob would be in the center of the four cages. How does that sound or should they be closer together?
 
Growmau5

Growmau5

Well-Known Member
GrumpyToker said:
Nice studio set up!

Any suggestions on "golden rule" of spacing between cobs?

Also what about those of us using 5 cobs in an "H"configuration?

From my measurements over 4 tomato cages using 5 cobs in an " H" configuration seems the four corner cobs 18" apart would put each cob in the center of each tomato cage. The fifth cob would be in the center of the four cages. How does that sound or should they be closer together?
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spacing will depend on the space and adjacent lighting, but around 10" spacing is pretty good. for the H config, i think your spacing sounds pretty good, ill build an H light for the second video of the "cutter configs" series. prolly shoot that one today too. cheers
 
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