vitexextrusions:I thought some of the makers might find this interestring

Hi guys,

These guys make custom extruded aluminum pieces especially designed for leds.

http://www.vitexextrusions.com/resources/led-lighting-design-challenges-solved/




3 TOUGHEST LED LIGHTING DESIGN CHALLENGES SOLVED USING ALUMINUM EXTRUSIONS
The use of LED lighting is growing rapidly, yet conversion to LEDs pose significant challenges for lighting designers and fixture manufacturers. This helpful paper details how the use of aluminum extrusions can solve three of the toughest LED lighting design issues, including:

• Combating heat transfer issues with use of integrated cooling fins.
• Designing fixtures that enable higher efficiency and reliability.
• Incorporating functionality into fixture designs to reduce product complexity and overall cost.
• Substituting other materials and processes with aluminum extrusions for significant cost savings.

You can also get it cut to order from a local metal supply. Not as expensive as you might think, so good for DIY.