Ah, Forgot that. Thanks Jos
The PEEK screw and 12 W/M.K thermal pad samples are on their way to my workshop……
Will be a great chrismast gift!
- Clemence
Any updates on the PCBs and screws?
The screw samples are still on holiday trip to my country. Just received the expensive thermal pad samples this afternoon.
12 W/M.K 0,5mm thick, not bad eh?
0.5mm thick copper tracing??
OMD, I wish… 
No, it’s the thermal pads to insulate the MCPCB from the base
Ah, completely mistunderstood it then, or it was wishful thinking 
FYI,the next VirEnce will be 3 oz thick minimum.
I’m an SI person, had to look that up: 3 oz = 0.1mm sounds good
I could not find back what the copper thickness of my 119 boards are, but a common thickness for Kerui seems 0.036mm, that makes your tracing 3 times as thick.
I’m an SI person too. It’s just Oz is a universal unit used in many copper tracing industries. Yes, It was hard to convince them to make 3 oz for me. I had to insist on it (at additional charge). I haven’t place the order yet, even though I made them busy for weeks
They have one of the best customer service in the industry.
Great, thanks!
When will you get samples of the PCBs?
Later when the high season ended I guess. Too many unexpected expenses for now 
The samples just arrived
Features:
- PEEK screw: continuously usable up to 248C (480F). Resist most chemicals (highly resistant to salt, acid, and alkali)
Datasheet: PEEK screws
- Thermal pad: thermal conductivity12 W/M.K; thermal resistance 0,12 C/W; electrically insulator; compressible down to 30% (0,5mm down to 0,15mm)
Datasheet: TG-X
Estimated price
- 21mm x 0,5mm thermal pad: USD 5 - 5,2/pc
- 17mm x 0,5mm thermal pad: USD 3,7 - 3,9/pc
- M3 x 0,5 x 8 PEEK screw: USD 2,8-3/pc
- Clemence
Any updates?
Not yet. This is harder than I though. But there’s a good progress going on
Thanks, Clemence. My 144a build is all ready to go minus the board. Hoping that everything will go smoothly and they will be available by the end of February/early March.
Update 170208:
Change of plan: the design will be completely different. No thermal pad required to make things simpler. I’ll get back to here when it’s done.
Really working hard on it! Stay tune
Any updates Clemence?
Copper version: Highly dependent on premium good thermal pad, complicated or limited design by nature. Pricey end product complete package and the least application friendly. Especially for us who often change the LED. For plug and forget it’s relatively OK, but not so much.
Aluminum nitride version: Simplest higher performance potential, yet brittle and still pricey [on my ends]. Still looking the best vendor and material combinations.
Aluminum nano ceramic [dielectric] version: cheapest so far, but I really don’t like the idea of using aluminum substrate when I know there are many superior options out there.
Still on it….
- Clemence
Thanks for the update.