Second one i think,a bit more usable area to heatsink perhaps?
Also you might be able to lense it like a seca or have a high/low setup without it looking uneven.
Looks very clean and nice, but I too am pretty sure you need more cooling. Remember it will have to dissipate about 15W it you are driving them at 600mA. I was surprised how hot the XP-E got even when properly heatsinked. I had it on a 450g copper heatsink and still it would get burning hot when you pressed your finger on top of it.
I am sure you already have some ideas but a slug between the two halves of the curtain rail and some old computer heat sinks on the ends might be feasible.
I'm also considering building a bigger version of the Pipe Light using the next size up pipe fiitting to be able to put 9 XPE's driven 3 parallel in series fed by a maxflex.
My problem is there are no dimensional drawings on the Cutter website of the 10mm MCPCB to tell me if the indentations on the pcb are made for the Carclo 10412 etc lenses to fit over or do the legs of the lens fit into the two holes of the pcb.
Can anyone confirm or post the correct dimensions please.
I cant wait to see this build! 8 of them you really are mad! I was thinking of using 3 and doing a 1/2 scale achesalot build. I am sure you will post some sort of beam shot since you always do. I hope the 10mm squares are nice. Any plans to try any of the other xp-e optics? The khatod .5" x 1.5" strip looks like it could be trimmed down to 10mm.
My problem is there are no dimensional drawings on the Cutter website of the 10mm MCPCB to tell me if the indentations on the pcb are made for the Carclo 10412 etc lenses to fit over or do the legs of the lens fit into the two holes of the pcb.
Can anyone confirm or post the correct dimensions please.
Looking at the data sheet for the 10412 optic the legs just sit around the 10 mm board .
I cant see them going into any of the indents as there are only 2 opposing each other.
Bikerjay.
You are indeed correct in your analysis :crazy:
The final build will depend on what the beam looks like from these wee beasties
I have ordered the 10417 :incazzato: I did not notice the 10412 had a better efficiency
Beam shots will be posted when they are here
No plans yet to try any other optics
Znomit
Nice idea but could look a bit messy
but it may be 2 * 3 XPE fitted to the helmet peak
But isn't the best angle for the 20mm triple a half angle of 18 degrees, ie total angle of 36 degrees? That makes it more of a flood. No joy with sourceing small quantities of the Polymer Optics range?
On another note Chris, I took the beast out on Wednesday night for the first ride. 38 showed up for a social ride but we were back at the pub before it was truely dark so didn't get to use it. Video this week I promise
Chris,
Holy cow...14?? Really?? That would be good! I like the sound of the 3 triples with the 20 mm optic...I think I'll do a bit of research...they could well fit straight into the housing.
Steve
I have only got 8 XPE s so need to maximise what I do with them at the moment I have so many ideas I would need 100 to play with.
ref the small lights I just wish you lived nearer I would like to get together and design something really radical I think these are to small for my manual lathing skills and crap mini mill.
these things are small enough to put on your glasses never mind helmet.
There is more wow factor from these than the MCE and 4 XPE with these 10 mm optics are IMHO better than 1 mce and boom reflector .
ok on to the rather rushed beam shots I struggled a bit because the optics were not fixed and just sat on the leds.
I tried to cover 2 leds up here so this is 2 up
this was a bit easier to do the 4 up
I have to say these shots do not do the these justice and I am very impressed with the performance for such a tiny package.
there is no wasted light out the sides it all goes into the beam
I think if you put 4 or 6 lined up on a helmet peak as tiny seperates you could taylor the perfect helmet light
Ooo, I want, I want, I want! They look so good when placed in a row like you have done. And the optics are also very shallow, so you will have much more room behind them for drivers and stuff. (if placed in a housing)
Ooo, I want, I want, I want! They look so good when placed in a row like you have done. And the optics are also very shallow, so you will have much more room behind them for drivers and stuff. (if placed in a housing)
As you may have gathered I am very excited by these and will have to endure a few hours in my freezing garage to come up with a housing .
These are the Q5 s so the R2 will be a bit brighter but as you see with only 4 they throw to the trees at the back which are 75 mtrs away where the single boom struggles to get half that distance .
Watch this space there is something really cool on the drawing board but will need Deesta`s CNC to do it justice , if he is willing and able to help
As you may have gathered I am very excited by these and will have to endure a few hours in my freezing garage to come up with a housing .
These are the Q5 s so the R2 will be a bit brighter but as you see with only 4 they throw to the trees at the back which are 75 mtrs away where the single boom struggles to get half that distance .
Watch this space there is something really cool on the drawing board but will need Deesta`s CNC to do it justice , if he is willing and able to help
75 Meters of throw! ( 246ft.) :eekster: :skep: Duh....I'm speechless. A six or eight setup could make a nice compact helmet light. Can't wait to see what the commercial bike light builders will do with these.
I have just spent the last 4 hours wrapped up in my garage chewing a helmet light from a lump of ali.
It was going to be kept secret untill finished but I am so excited about these little babies I had to share it .
I will put up a few piccys
I have gone for 6 XPEs as it makes a nice compact light and is ideal for the Maxflex to power from my 14.8 v batteries and I can run them at full chat if required
I have tried to make it from one piece so the whole housing is the heat sink .
and there is 10 mm of solid ali behind the leds which I will leave for now but will if needed cut cooling slots if it runs hot . the Maxflex has its own heat sink built in so it will monitor the leds too .
then how to mount it to a helmet the thing was to keep it low profile and most mounting brackets add height .
so I built in some rails and slots for a 25mm wide velcro strap the rails hold it just off the helmet so air can flow under
the total height on the helmet is 25 mm so pretty low profile. not bad for a 1000 lumen helmet light
It also has a M5 threaded hole in the bottom so a bar mount can be fitted
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