Tech Talk Live Stream

[Greengenes707]

We still on for today?

I actually totally forgot. I'm in Portland for the weekend.
After this weekend I have zero travel for the rest of the year and can do some great shows.
I would rather not wing it on the road...content suffers...I was not pleased with last weeks.

So my apologies to everyone. Maybe a mid week one to make up for it and not let the topics/questions build up for 2 weeks.

 

[M0ps]

Thanks for the heads up, I greatly appreciate what you and the others contribute to the community and will gladly wait until it is most convenient for you. Have a good trip.

 

[Greengenes707]

Thanks for the heads up, I greatly appreciate what you and the others contribute to the community and will gladly wait until it is most convenient for you. Have a good trip.

I should probably tell them too. We all appreciate the support and interest a lot.

Sorry again guys and gals

 

[Fastslappy]

Yeah this is Not yer day Job , so we do understand

 

[Substance]

Live stream today?

 

[Fastslappy]

yes plz more tech talk

 

[Greengenes707]

Not today. It's a cup day.

Not much to talk about this week anyways.

Throw down some questions and/or topics here. And we'll see if we can wing a show in the next day or two.

 

[Substance]

Greengenes707 my biggest question/concern is how far to keep my cxb3590s from the canopy. I see some quantum Flux meters In the 350$ range (ouch).

I have 8 cobs on a 12" x 36" heatsink, so they are much closer together than some others setups.

Do you recommend a budget meter?
And I hear up to 1500 is max light you would want on the canopy?

 

[topcat]

OK. Show how to calculate the size of heat sink required for both passive and active cooling. I want to build a lamp with 3 CXB3590, driven at about 40W ea.

This show is easy to sit through. Thanks so much to all for doing this on your own time!

 

[Fastslappy]

this explained calculating a heat sink for me

 

[Fastslappy]

Not today. It's a cup day.

Not much to talk about this week anyways.

Throw down some questions and/or topics here. And we'll see if we can wing a show in the next day or two.

yeah I forgot u guys are doing the show/cup today
I'm jealous .
those events are a gas & even better with a group of friends .

 

[skorchem]

Greengenes I really appreciate your tech talks and will continue to support them but if you and the other guys are going to continue to make vids please invest in a better camera or setup as your great content is being a bit crappy sorry get a better camera/ mic bro

 

[Greengenes707]

Greengenes707 my biggest question/concern is how far to keep my cxb3590s from the canopy. I see some quantum Flux meters In the 350$ range (ouch).

I have 8 cobs on a 12" x 36" heatsink, so they are much closer together than some others setups.

Do you recommend a budget meter?
And I hear up to 1500 is max light you would want on the canopy?

Apogees are the budget. You can get the sensor for about 150$ and use it with a multi meter.
http://www.apogeeinstruments.com/sq-110-sun-calibration-quantum-sensor/
OR the usb version for an extra 50$...
http://www.apogeeinstruments.com/sq-420-smart-quantum-sensor-usb-output/

Greengenes I really appreciate your tech talks and will continue to support them but if you and the other guys are going to continue to make vids please invest in a better camera or setup as your great content is being a bit crappy sorry get a better camera/ mic bro

Lost my camera in the move. I'll put it on the list

OK. Show how to calculate the size of heat sink required for both passive and active cooling. I want to build a lamp with 3 CXB3590, driven at about 40W ea.

This show is easy to sit through. Thanks so much to all for doing this on your own time!

This is the best way...

I'll touch on it for sure next time

 

[topcat]

Talk about fans. Are ball bearings preferred when using them horizontally, as I've read? Recommendations? I couldn't believe the number of choices to make concerning a simple fan, while researching. More jargon and numbers to learn, too. sheesh.

 

[Fastslappy]

look for a fan with ' fluid dynamic bearings ' that can be mounted anywhere vert/horzi
& the bearing are the longest lasting
ball bearing ;make noise after awhile & then fail
sleeved bearing ; just fail at any time

 

[M0ps]

Can we talk about grounding the heat sink or electrical safety