I believe Arct1k is referring to Mike running a modded mamba max(and frying it Sunday on 5s) not a modded R1pro. Last time I saw Mike(not Sunday, I sadly missed going to the Barn with them), he was running a modded mamba max(on 5s) in his 8t.

Bye:mdr:

No it was mikes R1Pro that gave smoke out (not at the barn on friday/sat IIRC) - The guess was it moved and may have shorted against the case.

Mikes MM was playing up aswell on 5s at the weekend to - It kept thermalling on him - He was using an UBEC and fan but no extra cap...

I am saving up to buy one!

I also think the bottom case should have some tabs or something on it. Id rather screw it into my chassis, rather then shoe goo or something

I had phone conversation with Mike and we are not sure what happen to ESC, besides smoke and short. We do know the place where short happen, maybe related to pcb motion (I used different method for keeping pcb's from moving inside, when I built Jeff's ESC) inside. Aluminum cover was well insulated inside from shorts to power fet's boards, but apparently I missed something on brains side.
I will give you updates on Friday, but one thing for sure it is not related to overload or thermal and I am pretty sure Fet's are good.
Newer enclosure would have better layout and there is no reason to use heatsink grease on the bottom, I can use silver epoxy to fix pcb's from motion inside the box.

In future we are going to have much better cases (top and bottom) anodized and pcb's are permanetly attached to case with mounting tabs.

Jeff, Thank for you time and feedback.

I will be ready to buy one in later aug

Either way, im running one! No doubt.....

Artur,

You are an artist when it comes to modifying ESC. I can't wait to see your own creations. I have something for you to fix for me. I have a nice 60A controller that was working wonderful in my Recoil with my Mega ACn16/15/1, but I changed the timing on the controller by mistake and it fried a couple of FETs. The controller uses the On Semi's NTMFS4833N and I would like to know if there's a better replacement for it. Sorry to bring an off topic item to this thread.

So, can I get a modified R1Pro from Mike?

How costy is it?

I really like that heatsink with mounting tabs that the ESC is mounted to. :yes: Do you know where I can get one of these? Or do they sell them at most hardware shops?

Honestly I have no idea where I got it.:neutral: It just happend to be laying in my parts bin and it fit perfectly. I couldnt get another one if I wanted it.

Artur how far off are you from selling these modded R1 Pros .
I have communicated with you over PM at RCTech but since then i have fried my MM trying to run it on 5s in my X2 conversion.
I have backordered two MMM V2 ( second one for my RC8 conversion) but if your not too far off i will cancel one of the MMM back orders.

I received blown ESC from Mike, and this one is tricky, after checking it out I am still not sure what happen...I can clearly see the short on brains pcb but where it came from not clear. Fet's looks good but not tested, brains are toast. I cannot see how new enclosure can do that, but something triggered this event. It is possible that short happen via mounting screws and enclosure, weird but very possible if screws touching pcb. I am going to study layout further and work on new enclosure with mounting tabs and fins.

Give me a week or two, this weekend was loaded with couple MM's and Quark's mods. I would like to fix blown one for Mike and then let him re-test the mod. I am pretty sure he would get good results, but I want to be 100% sure that enclosure design is perfect and flaws free, while ESC itself is great.

Artur,

Should I be expecting a similar occurance with my ESC?

So far everything is still looking great. Just wondering if there is anything you see that would make you think I might have the same result.

Totally understand Artur , good to see you are making sure these are 100% before selling .
Great that these are going to have some kind of mounting option.
Looking forward to trying one out :yes:

Hi Jeff,
While I am in the woods, in terms of what happen to Mike's ESC, I would recommend to pop the top cover and apply couple drops of 5-minute epoxy on all three sides in-between ESC pcb's and enclosure. This will reinforce pcb's assembly position within enclosure. Entire pcb assembly can be moved inside if you pull hard by wires or by vibration, original plastic cover has support ribs to hold pcb's in-place, ours proto-runs didn't.

Or you can send it to me and I will check it out, yours was modified slightly different.