In this thread I will provide some informations on my MF01 Mini / MT07 mod/upgrade. This mod is basically solve the thermal bottleneck of the MF01 Mini / MT07 and help to unleash its full potential.
For more and detailed information to this design issue please read this thread from Dr.Phillip: http://budgetlightforum.com/node/69962
In the post No.#25 I explained and introduced this modification and the idea behind it.
I used the results and findings of this first mod to design a further improved heatsink cover plate out of copper.
These copper heatsink cover plates are CNC machined and I am planning some production runs for them.
For the latest news and current status on production and availability, see the comment at the end of this post #1.
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In this thread i will share the information and everybody who is interested in getting one of these heatsink covers can mention his interest.
For those who have already expressed their interest, I will provide a overview in post #2.
Price per piece is $15,00 USD or 13,50€, Payment will be handled via PayPal (sending money to family and friends).
Installation description
Here is a quick step by step summary of this modification:
This plastic cover will be replaced:
by one out of copper that looks like this:
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Additional stickers for isolation will be added, these are included, you don’t need to make them yourself.
Thermal compound paste have to be applied on the green marked surfaces. Basically you can use any kind of electronic/CPU thermal compound paste. For my tests I used Arctic MX-4, other types which costs less will work also fine. (If your not sure how to do this proper, search and watch Youtube videos how to put thermal compound paste on a CPU for example.)
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Alternatively it is possible to use thermal conductive pads, that will work also fine with this heatsink cover plate. For information how to use these proper, please take a look in the post of ZozzV6 by following this LINK.
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The Design was very accurately defined, so after fixing this heat sinking cover plate, the gap to the AMCs is 0,1 mm, this gap should be closed with thermal compound paste, so put a thin layer on the marked surfaces as shown above. There is no mechanically contact to the parts of the driver board except the big outer GND-Surface.
Important Note: Please pay attention to the right alignment of the heatsink plate to the driver pcb. Wrong alignment does not fit mechanically anyway, but in case of wrong mounting, a damage on the driver pcb is possible.
After mounting it sits like this on the driver pcb (Sorry for this bad pic, but it gives an idea of):
I will deliver it with a set of isolation stickers, it’s up to you whether you want to use this ones or something different for isolation:
After mounting.
After this mod, the AMCs and the GND surface of the driver pcb is very well contacted to transfer the heat to the flashlight body. The Battery tube is now also directly connected to this heatsink cover plate if it’s screwed together with the head, this was not the case with the plastic cover.
So there will be no throtteling down any more in any ramp level (also top ramp) till the host (body) of the light reaches the setted max. temperatur. On max ramp (in default config.) it takes about 5 Minutes till it reach the max temp (60°C) and begin slowly to step down.
A level around 1200lm can be maintained constantly (@amb temperature of 20°C), which makes the light very useble, see here.
Here are some results before and after the mod. I’ve done three runs before and after the mod, turbo mode, top ramp (in default configuration) and a run at an output level of around 1000 Lumen in ramping mode. I used a fully charged Shockli 26650 IMR 5500mah cell for the three runs. Thermal calibration of the MF01m was done accurately and the configuration was set to max 60°C (30 clicks in addition). The SST-20 4000K version, which I was using for testing delivers less output and more heat (at same brightness level) then the 6500K or the 5000K version.
Turbo Mode, before and after:
Top Ramp, before and after:
Ramping mode, output around ~1000 Lumen, before and after:
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Lexel has done a thermal test of this heatsink cover plates, follow this LINK to see the results.
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Additional Info: Lexel has already passed the technical drawing and the 3D-CAD model to Mateminco end of 2019, as a proposal how to solve this design issue. So far no feedback on this.
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Because it’s an open source project, here the currently valid drawing for the production version:
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Current status June.25th.2020:
I personally will not organize another production batch of this Copper Heatsinks anymore. Its just to much effort and work for my and it doesn’t pay off for me. In addition, my supplier jumps of and I would have to search for and evaluate a new one.
If somebody of the community would like to organize a production batch and ship the parts to the interested members, that would be great for the community. I can share the 3D-CAD File (.stp) and the original drawing (.pdf) via E-Mail, please request with your E-Mail address via PM.
Thanks for understanding.
Best regards,
Paul
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Interested!
WTB Titanium 4sevens 2xAA tube
Interested, but cautious of shipping costs.
List of my reviews over at 1lumen.com
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oweban.org
A level of around 1200lm can be maintained constantly (@amb t20 ° C), which makes the light very useful – it sounds very tempting! $ 13.50 is the price without delivery?
"... God is light, and in him is no darkness at all..." 1 John 1:5 (KJV)
Why not use registered post instead of DHL? That is maybe cheaper to ship outside Germany.
My Youtube channel: Alllightson Reviews
My OL contest builds: 7th 8th 9th
My reviews: Sofirn SP31 V2, Nightwatch NI40, Sofirn C8F 21700, Brinyte WT01, Sofirn SD05,Ti AAA keychain, Sofirn SP33 V3, Skilhunt M150
My video-reviews: Brinyte WT01, Sofirn SD05, Ti AAA keychain, Sofirn SP33 V3
Interested!
Interested, but cautious of shipping costs (Russia).
Sorry for my poor english.
Ich bin auf jeden Fall interessiert, hoffentlich ist der Versand nach England nicht zu teuer!
Interested.
Interested.
Yes, shipping costs in addition,
I’m definitely checking this and will provide an overview of shipping options and prices later in the first post.[/quote]
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Interested if shipping cost reasonable to Hungary
Reviews: Olight Seeker2 pro, Lumintop GlowI, Sofirn SP36, Convoy 4X18A, Convoy M21C, Brinyte SR8 Rescue Angel, Astrolux MF01 mini, Astrolux FT03S, YLP Sherp S15, Sofirn SP40, YLP Panda 3R and Unicorn, Armytek Prime C1 Pro, Acebeam M50, Imalent MS18, Convoy M3, Nitecore TIP2, Imalent RT70, Wuben T70, Sofirn SP32A, Thorfire VG15S, Thorfire VG10S, Thorfire TG06S
Mods: Imalent MS18 dedoming, Astrolux MF01-20K, Small sun T08 MT-G2, Eagle eye X6 triple XPL, Ultrafire F13 MT-G2, Convoy C8 XHP70, Solarstorm T3 triple XP-L HI
Big flashlight measurement and beamshot collection
3D printing stuff for flashlights
My flashlight related Instagram
My Flashlight related Youtube channel called Zozzlights
Still in – PM when ready
Interested
Interested!
Just updated the first post with shipping options and costs.
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I’ll take one
never fear shadows…it means a light shines nearby
Ready to send € but i’m a bit confused with shipping options... registered in EU is (should be) tracked.
WTB Titanium 4sevens 2xAA tube
I’ve just call to the hotline of the postal service, and you are right, there will be a tracking number for registered postal. But my overview in the first post is wrong, the compact letter 50g ist not allowed to use for such shippings. I will update the overview now.
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1. How much heat loss or increase will there be due to differences in the materials of the part?
2. What is the price ratio between copper and other materials?.
"... God is light, and in him is no darkness at all..." 1 John 1:5 (KJV)
Interested for 1.
1. Aluminum will also works good enough, but copper had way more density, weight and better thermal conductivity, so the heat transfer is quicker. After some time the temperature on the Body will be the same with both materials.
2.The price ratio is not to big, 1-2 $ to aluminum. Most of the costs is caused by the manufacturing, machining, handling, supplier and so on. But I will anyway not offer another option than copper and maybe only this one batch at all.
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Cant wait to get one they look very good.No issues with shipping costs
C
Chris
richbuff said “Sometimes, I feel depressed about my spirit having been cast down to the hostile surface of this one-star planet, without my asking God first, and without God asking me first. I have found that a brief burst of maximum light from what is currently the smallest size flashlight per power makes it all ok/fine for a while, until the next time I feel the need to repeat.”
I’m interested in one (1). Nice work and thanks!
gman7228
There are 10 kinds of people in the world. Those that understand binary notation and those that do not.
"... God is light, and in him is no darkness at all..." 1 John 1:5 (KJV)
Interested in 2
in for 2, please.
I’m interested in one or two. This will make the copper MF01 mini even heavier!
My Youtube channel: Alllightson Reviews
My OL contest builds: 7th 8th 9th
My reviews: Sofirn SP31 V2, Nightwatch NI40, Sofirn C8F 21700, Brinyte WT01, Sofirn SD05,Ti AAA keychain, Sofirn SP33 V3, Skilhunt M150
My video-reviews: Brinyte WT01, Sofirn SD05, Ti AAA keychain, Sofirn SP33 V3
Yes, I’m absolutely with you, such a test with temperature analysis, runtime graphs and so on would be very nice in addition to my testings so far. Unfortunately such analysis are not my expertise, so I would appreciate if someone of us who’s got the skills, tools and possibilities would do this and post the results here. I would send one of the first pre-production samples for testing if someone with the appropriate reputation agrees to do it.
So feel free to suggest yourself or someone.
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Nice, so far they look great. Hope this works out and I get to play with them :). Will it be a straight plastic for copper swap or will we need to add washers and/or a bit of cpu thermal compound on those AMCs?
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