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TheManOfBronze

Looking for brushless system similar to T-BLE01S

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Hi folks,

I'm looking at installing some kind of dual brushless setup in my TXT-2 since now it has TXT-1 wheels and tyres it's not quite as nippy as it was with 2xsport tuned motors and the Tamiya dual motor ESC.

This is partly inspired by Matteo Meier's TXT-2 mods here:

He used two 45048 TBLE-01S controllers and two 54272 12T TBLM-01S motors. I have a suitable radio with mixing so I can duplicate the setup.

I'm not wedded to using Tamiya stuff (although it's always confidence inspiring!) but I was looking on Banzai and the ESC/motor sets seem pretty reasonably priced. The only thing is that the 12T set is out of stock (and I think not coming back).

They do have the 16T set - is this going to do the job? Is it like brushed where more turns means more torque/lower RPM? Will the extra torque hurt the stock+ drive train (I replaced the prop shafts and added steel pinions, but the gearbox and axles are stock).

I could also get the bits separately for somewhat more money, or go with a different brand. Suggestions are very welcome since I haven't done brushless before and I'm pretty clueless.

Thanks,

Will

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Hi Will, I'm going down pretty much the exact same path as you. My Agrios arrived the other week and before I've even run it stock I've been shopping for a brushless setup :D

I'm not sure if it's a typo in your message but Matteo is using 10.5T not 12T motors. As I understand it, you're correct that lower turns = more speed but less torque. I've gone for the exact same 10.5T setup as the vid, along with the Tamiya shocks and TXT-1/Clod wheels and tyres. I'm making the assumption that he knows what he's doing!

I bought the shocks and motors from Banzai but the TBLE-01s ESCs came from tamico.de where for some reason they were 70 Euros rather than the 130 Euros everywhere else. Almost as cheap as Banzai but faster delivery and no possibility of import duty for me here in the UK.

I'm expecting the bits to arrive this week but won't be able to report back until Christmas as it's a present. I'd be surprised if it can handle the power without breaking something, but that's all part of the fun.

I have painted and stickered the body though as I like just being able to drop that on top of the truck as soon as it's done :D

Adrian.

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I think his TXT-2 video post-upgrade definitely demonstrated that he knows what he's doing :D Look forward to seeing how yours turns out, it's a really fun kit to build.

On the 12T/10.5T thing, it's a bit confusing as I think the same motor (same 5-digit number) has been sold as two different turn numbers?

http://www.tamiyausa.com/articles/feature.php?article-id=502

I don't really know if they changed the motors and had to update the competition rules, or if the motor stayed the same and the declared number of turns changed?

[edit: re-reading the information on the US site, I think maybe they changed the specs before the motors were released? In which case any confusion is just in my head!]

Will

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I think the motors and product numbers stayed the same, only the "turns" rating written on the motors changed.

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So it turns out it was confusing enough that I got it wrong! After lots of dithering I ordered the motors and escs last week and was excited to find a Banzai packet on my doorstep today.

Unfortunately I've managed to buy the 2*TBLM-01S motors I was looking for, and 2*TBLE-01 (NOT S) speed controllers :(

So it looks like time to contact customer support. Unfortunately it looks like the TBLE-01S escs aren't in stock...

Will

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I've had fun trying to get the right bits too. My ESCs from Tamico arrived in plastic bags not boxed like in the vid. I thought they might be OEM / removed from kits items, which seemed strange as AFAIK no kits come with this ESC.

When I looked closer they were missing the fans and the text on the side confirmed them as TBLE-02s not the 01s, even though the bags were labelled as 01s. That explains why there were so cheap. I emailed Tamico who apologised and said they'd sent out the correct units and gave me a prepaid label to send the wrong ones back.

New package from Tamico arrived yesterday and I now have the correct 01s, in boxes. Motors turned up from Banzai so all good to go now.

Top marks to Tamico for painlessly sorting out the problem!

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Good to hear about good service. I mailed Banzai and they were helpful - they can do the return but need to check for stock first since they don't have any on hand.

The motors are evil-looking things :)

Will

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So I got impatient and gave up waiting to hear back from Banzai, and after reading around it sounded like it was safe to use the sensored motors with the ESCs I have, effectively ignoring the sensors.

Getting it all installed was a bit of a mare, not for any good reason, but silly things like one of the gearbox spur shaft screws rounding off, and having to slot it with a file and then get it out while holding other end of the shaft with pliers (!)

I got it sorted out in the end though. And it works, although I did have a nasty moment after getting the yellow and orange wires swapped over one one side, plus confusion with my radio (Futaba) needing the throttle to be reversed. I also had some cogging issues but I didn't have the same endpoints set on the mixed channels. After fixing this I ran it around for a bit - nice and smooth, lots and lots of power, a little faster than the stock setup but not vastly. Everything stays cool/lukewarm, which was definitely not the case before.

I thought I should check the transmission after trying to run the motors in opposite directions, but it was all fine, thankfully, and the motors don't seem any different to how they were before. In search of more speed I reinstalled the (19t?) kit pinions and their gunky spur (so I won't harm my good spur which has only been used with the steel 14t pinions) and I'm getting great speed, but more cogging than before.

I'm going to try taking it to bits again and trying to set the mesh so that one motor is in the gap between "cogs" and one is in the middle , and see if that smooths things out a bit. If so, I'll try and find some steel 19t pinions.

With the higher gear ratio, I get one front tyre lifting when blipping full throttle, and braking (at full TX rate, the ESC's default rate of 30%) is ridiculously effective and tends to flip the truck end over end. But no wheelies! I'm not sure what to blame for that - perhaps the cogging is causing slower power take-up than it should, perhaps I need to glue my tyres, or perhaps I need something better than NiMHs with Tamiya plugs?

Still, it's a pretty fun setup, and not a little scary. I'm looking forward to taking it down the bike track next week :)

Cheers,

Will

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