Modified Tekin R1Pro - RC-Monster Forums

11:52 PM

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.

GriffinRU · 07.26.2008, 11:06 PM

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.

Quote:

Originally Posted by ffactory666

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.

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.

jhautz · 10:40 AM

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.

GriffinRU · 07.27.2008, 07:41 AM

Quote:

Originally Posted by jhautz

Artur,

Should I be expecting a similar occurance with my EEC?

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.

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.

lutach · 07.27.2008, 08:38 PM

Artur,

You are an artist when it comes to modifying ESC. I can't wait to see your own creations.

OT: 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.

GriffinRU · 07.28.2008, 12:18 AM

Quote:

Originally Posted by lutach

Artur,

You are an artist when it comes to modifying ESC. I can't wait to see your own creations.

OT: 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.

Hi Luciano,
I do not have any particular part number in my mind, haven't looked yet for better replacement, but at current moment 4833 FET at 5S is hard tro beat performer.
Onsemi has a newer fet in the same form factor with enhanced thermal properties but so far I cannot find how it is better then 4833.
While DPak-7 is still thes best, but that wasn't the question. right?
You need to be very good with control circuit, while talking to DPak-7 and I am not sure what you are looking for either so far.
Bottom line for 5S ESC I do not have any better fet then 4833.
Anything better then that requires pcb layout with super heavy copper or different approach for power leads.

Patrick is not helpfull here, at least for me, he likes to talk but in reality he is just a business-man... I guess he is very proud of his 11 million business

P.S. I am TUI :)

lutach · 07.28.2008, 12:22 AM

Quote:

Originally Posted by GriffinRU

Hi Luciano,
I do not have any particular part number in my mind, haven't looked yet for better replacement, but at current moment 4833 FET at 5S is hard tro beat performer.
Onsemi has a newer fet in the same form factor with enhanced thermal properties but so far I cannot find how it is better then 4833.
While DPak-7 is still thes best, but that wasn't the question. right?
You need to be very good with control circuit, while talking to DPak-7 and I am not sure what you are looking for either so far.
Bottom line for 5S ESC I do not have any better fet then 4833.
Anything better then that requires pcb layout with super heavy copper or different approach for power leads.

Patrick is not helpfull here, at least for me, he likes to talk but in reality he is just a business-man... I guess he is very proud of his 11 million business

P.S. I am TUI :)

I need a ESC to be fixed. It's a small 60A controller that uses the OnSemi's 4833. I burned a couple (Maybe a few) and I would like to get it fixed, but I wanted to know if there's a better MOSFET out there. The ESC that I have is only rated for 3S (Maybe 4S) and I don't want to send it all the way to China.

Regards.

07.27.2008, 01:52 AM

Quote:

Originally Posted by GriffinRU

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.

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