Need help with Ledil TIR optics

If anyone could clarify the correct position (height) of TIR optics.

Datasheet is here (http://www.ledil.com/node/2/p/172?ds=1&mn=0&ld=0&md=0&xd=0&mh=0&xh=0&mt=0&mf=0&xf=0&sf=0&fm=0&ty=0&sm=0&cn=0&vc=0&io=0&tro=0&tpo=0&tr=n0&tp=n0&trt=0&tpt=0&fr=c11606_anna-50-3-s&st=0&pg=0&lo=n0&ol=0&of=0&od=0&oh=0)

Made a few pics so I can explain what is bothering me:

1. I get that these narrower parts on those legs go into the holes

2. Here I made aluminum base with holes to see how this positions the optics

3. Upside down

4. These are the examples of LED positions (left without MCPCB and right with MCPCB). LED’s go inside TIR’s, of course :slight_smile: .

So the question is how do I mount LED’s?
Should MCPCB be where aluminum base is or should MCPCB go on top of the aluminum base?

The Ledil lenses I’ve used are designed for the wider bit of the leg to sit on the top surface of the mcpcb.

This is how they mount on the Noctigon triple MCPCB

Yep.
I guess they’re made with a triple PCB in mind.

Thanks guys, that shouldn’t be to big of a problem with my new build.
Bigger problem is how to center Led’s inside these optics because holes don’t hold them tightly. I’ll have to get creative to solve that problem.
Any suggestions?

Xpg-xml centering rings might work?

I tried with all standard ones but it is not working.
I stumbled across this older thread (WTB: eagle eye X6 centering rings) and sent PM to EasyB to see if he managed to find them. Apparently these are from Eagle eye X6 but I can’t find them anywhere.

Precision optics height adjust is option for single tirs or reflectors. All multi-led tirs sit in right position when leg step contacts pcb.
I wonder about your optics choise.

You need a spacer in the holes of your base

A good solution is to drill a hole for the legs in a distance bolt.
Get a thread in yout host and adjust height by twisting the distance bolts to the correct height and secure em with some glue
Or if you have to screw em fully in cut the distance bolts height

I didnt understand that you are not going to use several single pcbs.
I think you can use your alum base as centering plate for smaller pcbs. Make it same height to your pcbs, make marks with compasses, drill holes smaller than your boards, make last passes with your hands, press-fit your pcbs inside. This way you will be sure in both right height and leds position.

Yeah, me to :slight_smile: .
I needed 50mm shallow optics and these were available to order from local shop.
Your thoughts?

Height position is not a problem. Correct height is determined with those legs. I can solve that problem.
Main problem is centering Led’s.

I’ll use several single MCPCBS, that is correct.

Drill holes in your base or let them be CNC-ed in the depth you need

Option 1.
50mm is non rare size, I have told you about triple or quad holders for single tirs. Im trying to avoid using such optics, with small tirs and lots of unused surface.

Drill layout holes in a sheet to act as a jig for both the LEDs and the optic posts. Secure the mcpcb’s with slow set adhesive filled flush to the mcpcb’s. After it sets us the jig to locate the peg holes. Or mill the mcpcb’s into the base material until they are flush and then drill the peg holes. Or use XPL’s as guide domes and switch to xpg’s. Lots of ways to do it if you step outside the box. The main thing is to avoid having the domes end up touching the optic or they will get knocked off.

Thanks everybody again, I have solved the height problem. I’ll have to get creative to center those leds though.

There wasn’t any space for those holders and single TIR’s, you’ll see if I manage to get this build done. Something like this (shallow) was the only option and this was a very long shot. Can’t wait to see how this beam will look like.

Your parts are in my hometown and to be delivered tomorrow :slight_smile: . That big 34mm chunk of copper is the missing part for this build.