• Here is a link to the full explanation: https://rollitup.org/t/welcome-back-did-you-try-turning-it-off-and-on-again.1104810/

Metal electrical conduit makes great yet cheap framework for cobs.

S

Silver or lead

Well-Known Member
It is stiff, light and costs about $3 for a 10 foot stick of it.

1/2 inch conduit has an outside diameter of 7/10 of an inch. You will need to buy longer screws that fit your pin fin heatsink to accommodate this.

One only need to cut conduit down to the desired length of the fixture twice. Drill holes completely through the conduit to accept screws in the location you want to place your heatsink and then screw the conduit to the heatsink on both sides.

I mounted the driver at an angle to the conduit so each end would screw to the opposite piece of conduit. Then wire it up, rig two hangers and you are good to go.

Two huge advantages that I see are is that it is very cheap. I have less than $30 into 3 fixtures mounting 4 cobs to each.

The light engine mounted this way also tilts on the axis of the screw that mount the engine to the conduit so you can actually point it. If you want less light on the wall you can just tip it in a little bit.

Aluminum angle loses on both those points
 
Danielson999

Danielson999

Well-Known Member
You can mount your heatsinks on any type of aluminum, be it square tubing, channel, angle or round and have it tilt. It's not an advantage to using a round profile. However, using a round profile requires that you get all new screws for mounting your heatinks because the one's provided are not long enough. So there's one downside. Another downside is drilling into a round surface.

If you want to get frame material for even cheaper go to a second hand type store that sells building materials. We have a store here called Re-store but others as well. I've found angle aluminum and all kinds of other neat stuff for projects.
 
S

Silver or lead

Well-Known Member
I wouldn't be so quick to dismiss this, conduit and the screws are available in just about every hardware store and cost less than $10 for a 5 foot fixture.

I will admit that drilling through a tube is not the easiest thing to do if you are not handy.

Also, most builds on here do not seam to involve directional cobs, I've only seen a few. This way it forces it and gives even people bad at design.

I tried to get a picture on here but for some reason it didn't work.
 
BuddyColas

BuddyColas

Well-Known Member
Silver or lead said:
It is stiff, light and costs about $3 for a 10 foot stick of it.

1/2 inch conduit has an outside diameter of 7/10 of an inch. You will need to buy longer screws that fit your pin fin heatsink to accommodate this.

One only need to cut conduit down to the desired length of the fixture twice. Drill holes completely through the conduit to accept screws in the location you want to place your heatsink and then screw the conduit to the heatsink on both sides.

I mounted the driver at an angle to the conduit so each end would screw to the opposite piece of conduit. Then wire it up, rig two hangers and you are good to go.

Two huge advantages that I see are is that it is very cheap. I have less than $30 into 3 fixtures mounting 4 cobs to each.

The light engine mounted this way also tilts on the axis of the screw that mount the engine to the conduit so you can actually point it. If you want less light on the wall you can just tip it in a little bit.

Aluminum angle loses on both those points
Click to expand...
I like cheap, clean minimalism in a build. You have some pictures to share?
 
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