New Sensor Based Hacker Brushless Motor
#16
Tech Champion
iTrader: (32)
Join Date: Aug 2001
Location: In a land of mini-mighty mental giants
Posts: 8,854
Trader Rating: 32 (100%+)
I think there was someone at the Cleveland indoor champs this year that had their car run backwards after they crashed and the car sprung back and they were using a non sensored motor. I know that most of the Pro-drivers are not going to have any of these issue most times but what about the average driver that crashes more then 2 times a run? Is this a problem with sensorless motors that people should look out for? You know like use them but wait until the car comes to a complete stop before you re-apply the gas? Has anyone that used sensorless motors had this happen to them? Kufman??? I know you used or use sensorless motors can this happen?
#17
Tech Lord
iTrader: (32)
I think there was someone at the Cleveland indoor champs this year that had their car run backwards after they crashed and the car sprung back and they were using a non sensored motor. I know that most of the Pro-drivers are not going to have any of these issue most times but what about the average driver that crashes more then 2 times a run? Is this a problem with sensorless motors that people should look out for? You know like use them but wait until the car comes to a complete stop before you re-apply the gas? Has anyone that used sensorless motors had this happen to them? Kufman??? I know you used or use sensorless motors can this happen?
#18
I had an issue with the castle creations mamba max and both a 5700kv and 7700kv motor where if I was rolling backwards or stopped due to a wreck or whatever, the thing would cog backwards for a bit, stop a brief moment, then continue on forward with uncontrollable power. Needless to say that problem was very frustrating and I switched back to Novak sensored brushless.
#19
Tech Master
It looks like a rebadged Novak. Can you tell us what makes it different?
Snowy.
Snowy.
#20
Linger,
No its never to late to change stuff. We will take that into consideration.
Syndrome, yes these motors are developed by Hacker Brushless motors. www.hacker-motor.com
As far as sensored and sensorless goes, I have used both multipule times.
Sensored is definatly the way to go if you wreck more then once.
With sensorless ,when at low speeds the esc pulses the motor trying to figure out where the rotor is making the car very hard to drive.
No its never to late to change stuff. We will take that into consideration.
Syndrome, yes these motors are developed by Hacker Brushless motors. www.hacker-motor.com
As far as sensored and sensorless goes, I have used both multipule times.
Sensored is definatly the way to go if you wreck more then once.
With sensorless ,when at low speeds the esc pulses the motor trying to figure out where the rotor is making the car very hard to drive.
#22
Tech Lord
iTrader: (32)
Linger,
No its never to late to change stuff. We will take that into consideration.
Syndrome, yes these motors are developed by Hacker Brushless motors. www.hacker-motor.com
As far as sensored and sensorless goes, I have used both multipule times.
Sensored is definatly the way to go if you wreck more then once.
With sensorless ,when at low speeds the esc pulses the motor trying to figure out where the rotor is making the car very hard to drive.
No its never to late to change stuff. We will take that into consideration.
Syndrome, yes these motors are developed by Hacker Brushless motors. www.hacker-motor.com
As far as sensored and sensorless goes, I have used both multipule times.
Sensored is definatly the way to go if you wreck more then once.
With sensorless ,when at low speeds the esc pulses the motor trying to figure out where the rotor is making the car very hard to drive.
You said "etc.." about the motor winds. Does that mean they'll only do "mod" motors, or will we see them venture into the 10.5 and 13.5 territory? Are the rotors sintered?
#23
Don’t you want your motor sensored for racing applications? The way I understand is that if your motor is not sensored and you spin your car out or crash and bounce off a wall so its moving backwards and then you get on the throttle it will continue to go in "reverse" because there is no sensor to tell it which way to go. I've seen this from time to time with Micro cars when they crash if the driver gets on the gas too quickly it will continue to run backwards. Do all non sensored motors do this? If they do then I can see why some racing bodies want sensored motors and why Hacker is now selling motors with sensor cables
#24
Yes, we will be releasing the "Mod" motors first. There will be a 10T and 13T as well.
The rotors are sintered or course.
There are many things that make this motor different. Different materials as well as the knowlege and experience of Rainer Hacker.
#25
Company Representative
Nope, not Novak's.
We got rid of those annoying holes in the solder tabs. (Technology marches on....)
Wonder if Hacker plans to apply for ROAR approval.
#26
Tech Lord
iTrader: (32)
We did nothing of the sort..
Yes, we will be releasing the "Mod" motors first. There will be a 10T and 13T as well.
The rotors are sintered or course.
There are many things that make this motor different. Different materials as well as the knowlege and experience of Rainer Hacker.
Yes, we will be releasing the "Mod" motors first. There will be a 10T and 13T as well.
The rotors are sintered or course.
There are many things that make this motor different. Different materials as well as the knowlege and experience of Rainer Hacker.
#27
Tech Elite
iTrader: (9)
I have to admit, in looking at the photos...and comparing them w/ my 'original' Novak's with the annoying solder holes...I thought the same thing.
I just don't understand I guess... I've seen 3 or 4 NEW B/L motors recently..yet they all have the 'old school' look...so as a consumer..you have to know (especially with already shown B/L history) as soon as you get one....the NEW one will be right behind it...LOL
I've been kinda waiting to see HACKER get into this market...I remember a couple of the AZ guys doing some work with them several years back.
I just don't understand I guess... I've seen 3 or 4 NEW B/L motors recently..yet they all have the 'old school' look...so as a consumer..you have to know (especially with already shown B/L history) as soon as you get one....the NEW one will be right behind it...LOL
I've been kinda waiting to see HACKER get into this market...I remember a couple of the AZ guys doing some work with them several years back.
#28
Tech Elite
iTrader: (6)
Don’t you want your motor sensored for racing applications? The way I understand is that if your motor is not sensored and you spin your car out or crash and bounce off a wall so its moving backwards and then you get on the throttle it will continue to go in "reverse" because there is no sensor to tell it which way to go. I've seen this from time to time with Micro cars when they crash if the driver gets on the gas too quickly it will continue to run backwards. Do all non sensored motors do this? If they do then I can see why some racing bodies want sensored motors and why Hacker is now selling motors with sensor cables
The ruling bodies don't require sensored motors. They require the motors to be wye wound with certain internal dimensions where the older hacker motors are delta wound with the wrong internal dimensions. Novak explained to me that the reasons for making many of the rules was to make the brushless motors close to the brushed motors. Kind of funny since brushed motors are delta wound.
#29
Tech Elite
iTrader: (6)
I forgot to mention, this startup problem is more defined when using ROAR motors since they are not designed to work well with a sensorless controller. The motor design rules do not lend themselves to the use of a sensorless system.
Besides which, if you are crashing hard enough to stop your car more than once per run, you are not going to win anyway.
Besides which, if you are crashing hard enough to stop your car more than once per run, you are not going to win anyway.
#30
Company Representative
Sensorless had too many problems with low-speed driveability and hesitation to be accepted in a racing environment.