MF01 Mini / MT07- Mod/Upgrade - Copper Heatsink Cover Plate

Thanks for doing this Lexel, we will see what they will decide and do with this idea and design.

I have another expectation for that, I think the copper version will perform better in some diffucult situations, like top ramp with a fully loaded high drain battery. Copper has way more density, therefore can take more heat energy in the first few seconds and due to the better thermal conductivity bring this heat faster away to the body.
Maybe I’m wrong with this, but we will see, in a few days I will provide my test results of both options with runtime graphs before and after the mod.

Brass is not comparable in this case, due to the very limited space and a three times worse thermal conductivity than copper. (Copper 380W/mK, Aluminum 236 W/mK, Brass 120W/mK).

It would be interesting to see the images of the thermal imager and the effectiveness of the “copper” - extending the heating of the AMS, if, of course, it can be distinguished separately from the LED (in the thermal imager) …

I have a professional IR imager, but copper is bad needs to be not reflective like anodized aluminum, sticker might help
Not sure if I can get a free sample with national envelope here in Germany, does not need be a parcel

The production of the first batch is not yet started. I received only two samples of the CNC-machined final version (V2.1), one of them is on the way to ZozzV6 for testings, the other one i keep for my own testings. Zozz will make a review of the MF01 mini and test this mod in addition and provide the results.
Later, as soon as the first batch is ready for shipping, we can talk about test samples, sorry for that.

Anyway, i will earn nearly nothing with all this project, the production costs in germany are quite high, so I mostly doing this just for fun and for the community.

What if you solder a spring to the button on the driver? It will space the battery from the custom radiator. The tail spring has more than enough space to compensate if you use a 26650.

I think this is ready solved with sticker will isolate battery from touch the new plate, and copper plate is same size as plastic plate so battery will make good contact with positive post just like before, no additional length need added.

Please correct me if is wrong. What is danger if sticker wears down and battery contacts copper plate?

The battery wont hit the plate if you use tubed extender for smaller sizes
Magnets are not needed and with this metal plate they are a potential dead short risk

It seems to me ideally that the radiator needs to be anodized and use stickers made of dielectric. Double protection))

Please include me in the list for one unit.

I’ve just updated post #1 with new pictures, runtime graphs and an update on current status, so take a look on that.
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Here are some more runtime graphs regarding this mod.
This results are only for technical interested for discussions and to compare the aluminum (V1) and the copper version (V2.1) to each other in their efficiency.
This results are not showing the effect before and after the mod, only variations in the material and the design of the heatsink plates.

Turbo mode test, both with fresh loaded Shockli 26650 IMR 5500mah, there is not much of a difference.

Here a special scenario with a freshly loaded high drain cell, Samsung 40T. In this case the AMC’s become hot very quickly, a good thermal transfer is necessary to avoid the step down.

Please put me on the list for 2 pcs.

Thanks

Well I’ll be damned. I checked the updated 1st post and was very surprised. I didnt expect thid mode to influence the turbo so much. I know we are adding heatsink mass mostly to the head, but still. Very nice. And that max ramp looks great. Great job man (of light :D). I hope our chinase friends implement the aluminium mod, but I somehow doubt it.

looks good :+1:

Interested for one.

:+1: What further reduction in time, after 11 minutes, from 1000 to 500 lm approximately, did you measure? (with mod)

The results are very interesting! :+1:

Looking at the graphs got me thinking. Can someone explain to me why the Olight M2R Pro weighting 95.8g with a single XHP35 emitter can sustain 750 lumens, but the MF01 Mini weighing 171g, more surface area, and 7 SST-20 emitters only sustain 1,000 lumens? In turbo mode, the MF01 Mini seems to only sustain about 500 lumens.

I understand the SST-20 is not as efficient as the XHP35 but with 7 emitters, the SST-20 emitters should be operating at an efficiency range likely comparable to the XHP35 or more likely even more efficient.

Interested in 1
Thanks

Better driver and thermal design/efficiency with more expensive flashlights, e.g. ZL SC700d and Wuben TO50R are both smaller and lighter than MF01 mini yet can sustain 1,000+ lm for an extended period?

Interested in 2

Interested!