Cutter Electronics: Complete DIY COB kits
- Thread starter Growmau5
- Start date
Fastslappy
Well-Known Member
Ya know IF one is doing bars & they are gonna b attached to each other in a grow room/tent
AND you want to make a rigid assembly them Just a single 80/20 bar is needed
not the dual bar set-up , my intention was to get away from the dual side support & go single attach point
you could also mount cob/sink on each side of the bar left/right then repeat
that would slightly stagger the grid , but the next bar would fit right in with the left/right grid
so in theroy it would nearly be the same coverage .
or place 2 different K color right next to each other
that's the beauty of the 80/20 shit , flexible as hell AND all re-useable
Growmau5
Well-Known Member
BOBBY_G
Well-Known Member
re:adjustment: id take philips or heck even thumbscrews over allen any day of the week
welight
Well-Known Member
Hi Hear you Bobby_G, I think the issue with angling is if your going to change on a regular basis, its harder to strip our out an allen head over a Philips, if you content to leave locked in square, then PH is simpler
Cheers
Mark
BOBBY_G
Well-Known Member
thumbscrews! all kind of grippy star-type washers to hold the adjustment without a gorilla grip
VegasWinner
Well-Known Member
A small direct T-connection could allow flexible use. Create bars with elbows to extend/retract to better position. COB's over work area. Mulitple connections to one base extending in all four/eight directions instead of a box, like a spider body and legs extending and retracting with control centralized, drivers, etc.. Lightweight members with single point attachment is flexible, while taking advantage of the individual placement of Cob's. You can even make lightweight collars; 3/16-5/16 TH; to hold cobs with single point attachment for stability. peace
I'm still waiting for an answer. How do I order a mixed UV wavelength 3 up or 4 up star on the website ?
The only 3 up stars on the website are the 3 up nocitgons with the same wavelengths on each star. (all 410s or all 420s etc).
I really don't have the volume to make a custom order.
sounds like I would be better off learning how to reflow
@welight
Hi Mark,
I wanted to price the LPF1180-CUT Heatsink but when I went into Checkout and applied the CUTANDROLL coupon no discount was applied. Any reason CUTANDROLL isn't working for this item?
I also notice that your LPF1180-ZHE-C heatsink is the exact same heatsink but the holes are drilled for Citizen COBs rather than Cree and the heatsink is $9 cheaper? I'm curious as to the price discrepancy. Surely Cree holes don't cost more than Citizen holes. And the CUTANDROLL coupon doesn't work on this item either.
Thanks.
Hi Mark,
I wanted to price the LPF1180-CUT Heatsink but when I went into Checkout and applied the CUTANDROLL coupon no discount was applied. Any reason CUTANDROLL isn't working for this item?
I also notice that your LPF1180-ZHE-C heatsink is the exact same heatsink but the holes are drilled for Citizen COBs rather than Cree and the heatsink is $9 cheaper? I'm curious as to the price discrepancy. Surely Cree holes don't cost more than Citizen holes. And the CUTANDROLL coupon doesn't work on this item either.
Thanks.
I just stumbled upon this, those lights are AWESOME. Would be perfect to expand my already existing bar with 4xCXB3590.
I have lenses on them, so you are correct talking about "problems" with spread. I have an 120x60cm area and due to how the lights "combine", the outer sides/edges of my growing area are getting significantly less light, this is easily to test even by a simple "hand under lights" test.
ON THE OTHER HAND, I don't really see this as a problem. Arrangement and type of your fixture/COB is everything here! This is why I am now also saying that individual lights (that you can move) might be better than a fixed bar with 4 lights, like I have.
BUT...knowing that the outer, say, 15cm of my growing area are getting less light is less a problem in actual practice. In reality I always have some plants like seedlings or vegging plants, I simply put them on the outer range of my growing area. I don't see this light distribution "problem" as such a "problem" at all. In fact, it's actually good that I have a safe space for seedlings
As for PPFD, you're correct as well. I am actually *using* 1.15x0.57 from my area which is 0.65sqm and I have 4x CXB3590 with a 1750mA driver.
Fully turned up I get close to 900 PPFD. Good. But when I am vegging and don't have anything in flower, I can "only" dim down to 550 something PPFD, the lowest setting with the internal dimmer, 875mA (Which is still a lot for vegging, 250-300 PPFD would be sufficient). I just realized *recently* that I have way, way too much light when I veg only and run the lights fully turned up, at least according to theory...
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welight
Well-Known Member
Hi PurpleBuzI'm still waiting for an answer. How do I order a mixed UV wavelength 3 up or 4 up star on the website ?
The only 3 up stars on the website are the 3 up nocitgons with the same wavelengths on each star. (all 410s or all 420s etc).
I really don't have the volume to make a custom order.
sounds like I would be better off learning how to reflow
Sorry, busy weekend, check this and advise if what your after
http://www.cutter.com.au/proddetail.php?prod=cut2906
Cheers
Mark
welight
Well-Known Member
Hi Chuff
Your correct the heatsink in stock was an part of an original sample order we brought these in for to test, the price reflects a sample cost and not the purchase price if we stocked them ongoing. We wont be restocking this, as you point out is is meant for Citizen leds and if we did purchase and stock it, it will be more expensive than the current price. I have now added the discount code to the CXB version. Side note, yes the CXB version is more expensive as they had to make a tool up to add the new hole pattern, the holes dont cost more, but the machine setup does
Cheers
Mark
That's a beautiful setup. Any worry of the rails blocking the COBs distribution pattern of light at all, though?
sixstring2112
Well-Known Member
i think he just did that to give everyone a better look at the parts and how they go together.the parts can just bhe flipped and then the rail would be closer to the center on the heatsink and out of the way
That's an awesome amount of space!
bonhomie
Member
Yeah, but I'm no engineer with the paycheck to supply the ultimately recommended one COB at 1050ma per square ft. plus supplemental UV/deep red/etc.
I think starting with more HID and a corner of LED will be good as long as I can slowly replace those big ugly HIDs that I expect will be hot and cumbersome at that ceiling height...
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