Author Topic: IROCC Brushless Motors Due This Week (Read 9146 times)

RC51 · « **on:** March 25, 2008, 12:43:59 PM »

Hi, Guys.

Trent just received the TrakPower 4900/5400 mAh battery shipment and the brushless motor shipment from Trinity and he is turning them around to me today. I will be handing the brushless motors off to Brian, so those of you who gave him your name and qty can pick them up at the last indoor 1:12 race of the season this weekend.

Thanks.
Phil

RC51 · « **Reply #1 on:** March 27, 2008, 12:03:43 PM »

Hey, folks.

Looks as we won't have the brushless motors to you for the weekend. We're taking a little more time to test and tune the motors and are hoping to have them to you by Tuesday. As anticipated, manufacturers, one of which is Trinity, have re-released their motors using the new, updated ROAR specifications. we want to test the previous generation against the new generation to see if/what is different in terms of performance numbers. So far Trent has not found any mathematical difference between the two generations in terms of the standard performance numbers we use. However, some of the motors we are testing are outside of the parameters the software uses to assess motors or are so unusually fast that we encounter other issues. For example, the T-Bang Proto Type BL 4.5 actually melted the solder leads of of the slave motor during a dyno run once it hit 50,000 RPM!!!!! So, we want to recalibrate and change some of the parameters to allow for full testing and tuning on each motor.

The TrakPower batteries are in and we also have some of the balancing leads for folks who didn't have them.

More to follow.

Phil

RC51 · « **Reply #2 on:** March 31, 2008, 10:46:58 PM »

Hi, Guys.

Your brushless motors will be available from Brian at the AGM tomorrow night, April 1st. Trent tore them all down for quality inspection, added a few tuning tweaks for us, and we're good to go.

Phil

RC51 · « **Reply #3 on:** April 10, 2008, 11:51:07 AM »

Hi, Guys.

Just a quick note here to let you know that we have some new motor tuning equipment on the way that should arrive shortly! Both Trent and I will have a trackside jig that tests the condition and quality of the brushless rotors and the can/coils as well. This will have a couple of benefits:

1. We now have a tuning regime down that will allow for tweaking the motor to the best of its capacity; and

2. We can measure whether the rotor and entire motor performance has dropped off due to overheating etc such that you can choose to replace it or rebuild it.

We are still waiting for the industry to produce a reasonably priced rotor zapper which will complete our technical needs for performance and refreshing. More to follow!

On a final note, watch that you only use a small amount of oil on your bearings before running the motor and certainly do not run the motors in the rain. Switch to a Brushed motor if you want to do that (but watch moisture in your LiPo!!!!!!!). Any moisture at all on the hall sensor inside the can, can and likely will, interfere with sensing accuracy and we don't entirely know the effect on performance when that happens. On a related note, I was rebuilding my motor last night and saw that when I overheated my motor in Kamloops to a whopping 250 degrees, the solder leads inside the can melted off completely. So, temping your motor for performance and rotor health can also prevent you from having to disassemble your motor and re-solder those leads. It was no biggie to do that, just a PITA. I'll test it shortly to see what effect the heat and rebuild has had.

P.

Grinder · « **Reply #4 on:** April 10, 2008, 02:09:07 PM »

So do these motors still have the thermal sensor built in (blue wire IIRC)?

RC51 · « **Reply #5 on:** April 10, 2008, 02:30:45 PM »

Hey, K.

Yes, the thermal wire is still built in (all the wires are black but there is a diagram) and I believe the threshold is built in vis a vis chip-side programming on esc's. Not sure if these are adjustable in the current generations. Interesting - there may be a mid-market opportunity for an innovator to build an in-line adjustable thermal cutoff! Pulling the wire is a guaranteed way to go fast and cook the rotor and interal solder joints at the same time. Now that's efficient! LOL.

Phil

Grinder · « **Reply #6 on:** April 11, 2008, 01:56:54 AM »

It should be easy to "adjust" what the ESC sees coming from the motor. I'm not sure if any of the programable ESCs allow you to change the thermal rating. As far as I know most people either run the default thermal sensor or just remove it and throw caution to the wind - not sure if anyone would "adjust" that setting

Shawn68z · « **Reply #7 on:** April 11, 2008, 09:56:31 AM »

Geesh.. We dont even have a single IROCC heat with brushless motors, and you guys are already talking about playing with the heat sensor.

I thought the point of brushless was to make maintenance simple, and LESS expensive in the long run. No more brushes, comm cutting, and best of all, a temperature sensor so you dont cant run the motor too hot and melt it down.

Shawn.

RC51 · « **Reply #8 on:** April 11, 2008, 11:00:59 AM »

Hey, Shawn.

My thought is that the sensor threshold on the GTB is too high for club racing. Lowering it would SAVE money for everyone. I rebuilt mine after the meltdown and it's a dog. So, having this conversation and trying to see if it is possible is in everyone's best interest. Sure, at the big events some folks would remove the sensor wire and they have the financial resources and support to be able to throw the motor away. But that's not practical for club racing. I was chatting with Korgae about his race at Fast Cats where he was running a 17.5 stock equivalent motor and his got so hot it melts the motor solder leads on the wiring from the esc. That's something endemic to mod, but stock??? No one wants a one-run wonder LOL!

P.

Shawn68z · « **Reply #9 on:** April 11, 2008, 11:43:43 PM »

Ohh... Ok. That makes more sense. If you want some thing made i can make it for you, no promise of the size though. I dont have alot of components kicking around these days.

Shawn.

RC51 · « **Reply #10 on:** April 12, 2008, 11:47:53 AM »

Let's chat about this on Sunday. Sounds lke a neat idea. I'd like to see something in and around the 175 degree range. Apparently 160 is the max safe zone and 180 is into BBQ season temp. Roasted Rotors!

BTW, all of the tuning rotors arrived this week!

P.

Grinder · « **Reply #11 on:** April 12, 2008, 04:09:05 PM »

Size shouldn't be a factor as it can easily be built into the harness. Once you figure out what value you want to use the part is probably going to be less than $0.10 and that's buying it locally.

RC51 · « **Reply #12 on:** June 19, 2008, 07:49:42 PM »

Hey, guys.

After a lengthy delay, we have our next inbound shipment of 10.5, 13.5 and 17.5 brushless motors en route to Trent for tuning. The supplier was two months backordered and if all goes well we should have these tuned in time for Speed Weekend. This is particularly important for those of you who are either interested in them for Pro10 or for 19T classes. Please note that the order is already just short of 50% pre-sold. If you are interested, please PM and we'll put your name on one.

I called Trinity again this week and we still do not have word on replacement rotors. Last weekend I tested a theory, though. The mod rotors that are the same diameter as the spec (10.5/13.5/17.5) rotors are a bit different. The mod rotors have an aluminum fan on board that can be removed with a little persistence. The unforseen (and inconsistent) issue is that there is a collar on some rotors, some have a molded collar machined in, and others don't have them at all. As such, I needed to shim the rod on the rotor with 16 shims to get it to sit correctly in the magnetic field. So, an alternate is available if you have cooked your rotor to this point; you just have to work it a little!

Trent is also finishing up the tuning on 60 19T motors tonight followed by a run of 30 or so stock motors to come online shortly.

PM for Qs.
P.

RC51 · « **Reply #13 on:** July 02, 2008, 11:06:31 AM »

Hey, folks.

Brushless motors are in Vancouver. Trent is tuning them up now and they will be here in time for Speed Weekend. Also en route are some of the new Type M stock motors and some hot Hemi K 19T.

P.

BigDawg · « **Reply #14 on:** July 17, 2008, 12:55:44 PM »

will there be any brushless motors for sanich days race???

RC51 · « **Reply #15 on:** July 17, 2008, 12:57:18 PM »

Hi, Doug.

I am due to connect with Trent in Vancouver on Monday. I believe he has 5 10.5 left over there but I will check and grab them all. I'll let you know this weekend after I hear back from him. Tx.

P.

BigDawg · « **Reply #16 on:** July 17, 2008, 01:20:09 PM »

ok if you get them i would like 2 please!even if you dont get them in time for sanich days i still would like 2

RC51 · « **Reply #17 on:** July 22, 2008, 07:08:34 PM »

Hi, Guys.

I have a very limited supply of T-Bang XB 10.5 brushless motors on hand. We will not be getting others in stock until mid fall, so please PM if you would like me to set one aside for you. 17.5 and 13.5 are in the queue for build and tuning and will be ready over the course of the next month or so.
Phil

RC51 · « **Reply #18 on:** July 28, 2008, 11:26:54 AM »

Hey, Guys.

3 XB 10.5 BL left in stock!

P.

Gorden · « **Reply #19 on:** July 28, 2008, 11:37:00 AM »

Phil no were do you say what the motors cost?

RC51 · « **Reply #20 on:** July 28, 2008, 11:52:41 AM »

Hi, Gord.

Price hasn't changed at $75. I haven't put them on the site since they go so fast they are out of stock by the time we get them up there we are out!. Same price as in the past.

P.

RC51 · « **Reply #21 on:** October 08, 2008, 07:22:17 PM »

Hi, Guys.

We have a few brushless motors with minor scratches and dings in stock. I have 3 x 17.5 and 2 x 13.5 on hand here. For IROCC only, send me a PM if you would like one. Cost is $65.00 Taxes included for each motor while they last. I'll post when they are gone.

Phil.

RC51 · « **Reply #22 on:** October 08, 2008, 10:35:39 PM »

3 x 17.5 and 1 x 13.5 remaining.

RC51 · « **Reply #23 on:** October 08, 2008, 11:49:10 PM »

2 x 17.5 and 1 x 13.5 remaining.

RC51 · « **Reply #24 on:** October 09, 2008, 12:30:55 AM »

Someone reminded me that I didn;t mention that these are NEW NIB motors.

P.

RC51 · « **Reply #25 on:** October 09, 2008, 12:31:25 AM »

1 x 17.5 and 0 x 13.5 remaining.

RC51 · « **Reply #26 on:** November 10, 2008, 06:29:53 PM »

Hi, Guys.

OK. Here's the scoop. Brushless is catching on everywhere - shocker - and inventory is getting increasingly difficult to come by from the manufacturers. Our latest batch is due in this week but just today we pre-sold half of the shipment and naturally, Christmas is around the corner and we'll see more uptake then, too. If you are interested in 13.5 or 17.5, please let me know and I will simply deduct yours from the inventory count and make them unavailable to others.

I raise this now since we'll likely see the stock of the current brushless drop significantly as TRINITY launches the new "PULSE" line (whatever that means) with a new design. They have distributed the marketing collaterals but in our experience it will likely be several months before we actually see these shipped - at best.

We also have a batch of the new 10.5s being tuned by Trent and those are limited in qty as well, but demand likely won't be what it was last year. If you are interested in any of those before I put them online, please shoot me a PM.

Thanks, Guys.
Phil

RC51 · « **Reply #27 on:** November 18, 2008, 02:11:50 PM »

Hi, Guys.

10.5, 13.5, 17.5 brushless motors are now in stock!!!

Phil