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Search: Posts Made By: Bry195
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06-18-2019, 08:11 PM
Replies: 101
Views: 12,898
Posted By Bry195

great points on both sides. if you look at all...

great points on both sides. if you look at all the things you do to the car to get responsiveness, traction, control or most importantly for someone trying to go faster....comfort. Im saying dont go...
06-17-2019, 05:41 AM
Replies: 101
Views: 12,898
Posted By Bry195

Anything that can be felt by the motor in the...

Anything that can be felt by the motor in the form of inertia is ratioíed to the rotor primarily through gearing. I suspect you are correct though.
06-16-2019, 08:00 PM
Replies: 101
Views: 12,898
Posted By Bry195

Ive designed motion control systems for 25ish...

Ive designed motion control systems for 25ish years. I hope it makes you feel like a read a book or two. How come i feel like you are trying to have something to say in a topic you dont understand by...
06-16-2019, 09:18 AM
Replies: 101
Views: 12,898
Posted By Bry195

you are thinking in terms of torque not inertia....

you are thinking in terms of torque not inertia. Inertia is the resistance to a change. Torque creates the change whether itís too much or too little. You are ahead of the game in thinking in terms...
06-15-2019, 09:04 PM
Replies: 101
Views: 12,898
Posted By Bry195

Im not telling you that you skipped something...

Im not telling you that you skipped something that you should go back to and understand first. i tested concepts that were out of order in robotics way back when that motivated me to do more. Some...
06-15-2019, 08:51 PM
Replies: 101
Views: 12,898
Posted By Bry195

in the other thread I said I suspect a low...

in the other thread I said I suspect a low inertia drive train would be helpful and i described what you would feel if you went too far. i then described what you would feel in the opposite...
06-14-2019, 08:34 PM
Replies: 7
Views: 566
Posted By Bry195

Depends but based on the message i can take some...

Depends but based on the message i can take some guesses. When most products hang at the boot screen then the firmware is hosed. Maybe a reflash. If the message means it did a self check on the...
06-14-2019, 08:10 PM
Replies: 101
Views: 12,898
Posted By Bry195

if its not illegal it will be. the difference is...

if its not illegal it will be. the difference is dramatic but too low of an inertia ratio is just as bad as too high of an inertia ratio. anywhere from 1-10 to 1 for continuous accel/deceleration. up...
06-14-2019, 07:52 PM
Replies: 68
Views: 9,978
Posted By Bry195

with the advent of neodymium magnets people got...

with the advent of neodymium magnets people got really happy about torque density. allot of people forgot about ferrous core magnets until they have an inertia problem. for a dynamic start stop...
06-13-2019, 08:10 PM
Replies: 68
Views: 9,978
Posted By Bry195

https://www.motioncontroltips.com/faq-what-is-serv...

https://www.motioncontroltips.com/faq-what-is-servo-motor-inertia-and-why-does-it-matter/

you have been playing with inertia matching and I found this basic description of the benefits and...
06-12-2019, 08:55 PM
Replies: 5
Views: 516
Posted By Bry195

Its easy to forget the inches in an ozin. Half...

Its easy to forget the inches in an ozin. Half the length is twice the ozs and half the speed.
06-12-2019, 08:37 PM
Replies: 13
Views: 499
Posted By Bry195

I suppose you are looking for the best esc and...

I suppose you are looking for the best esc and you want to measure something.
heat and size are important in some cases
If you are looking at premium products then differences in hardware get less...
06-07-2019, 08:44 PM
Replies: 68
Views: 9,978
Posted By Bry195

a dyno is like a ruler. It provides a way to...

a dyno is like a ruler. It provides a way to accurately measure and reproduce. i build race cars and tune them and there is a tendency for people to build dyno queens that are un-driveable. I dont...
06-06-2019, 08:43 PM
Replies: 68
Views: 9,978
Posted By Bry195

a motor will spin at an rpm for a voltage. kv...

a motor will spin at an rpm for a voltage. kv kind of tells you how many rpms per volt
a motor is also a generator at the same time its a motor. kv really describes when the voltage it generates...
06-06-2019, 11:13 AM
Replies: 68
Views: 9,978
Posted By Bry195

1 guy understands. im thinking its still a 90%...

1 guy understands. im thinking its still a 90% chance someone who doesnt understand will give you the old practice more speech. Which by the way is completely obvious. bad driver + good car doesnt...
06-05-2019, 08:48 PM
Replies: 68
Views: 9,978
Posted By Bry195

Ive been trying to help people who use motolyzer...

Ive been trying to help people who use motolyzer figure out how to tune a motor that is loaded and their isnt a perfect quick and easy way. Your hunting for 2 points. Peak efficiency (cooling) for...
06-02-2019, 07:42 PM
Replies: 7
Views: 566
Posted By Bry195

If you stumble across this thread and want to...

If you stumble across this thread and want to sell your broken Icharger post it. Someone will buy it and fix it. Maybe even me.
06-02-2019, 07:33 PM
Replies: 12
Views: 600
Posted By Bry195

Weird things happen when the rotating magenetic...

Weird things happen when the rotating magenetic field is less than synchronized to the rotor. On a stepper it kind of sounds like whales talking. Do you have a frequency setting for the brake or PWM?
06-02-2019, 07:23 PM
Replies: 7
Views: 1,303
Posted By Bry195

No recovery in a resistor. Just simple and easy...

No recovery in a resistor. Just simple and easy to use.set it and forget it. a dc motor contro that is powered by AC is essentially a powersupply and discharge resistor in one. There are 2 types of...
05-30-2019, 07:43 PM
Replies: 6
Views: 764
Posted By Bry195

The charger speaks modbus if you really want to...

The charger speaks modbus if you really want to get away from the thumb wheel
05-29-2019, 07:18 PM
Replies: 13
Views: 951
Posted By Bry195

does it screech if you hold the rack with your...

does it screech if you hold the rack with your hand? add load to the servo
05-28-2019, 08:41 PM
Replies: 6
Views: 1,210
Posted By Bry195

check out the trackstar easy fits. they are...

check out the trackstar easy fits. they are always sold out but the have a hex screw to hold the connections together.
05-28-2019, 08:36 PM
Replies: 7
Views: 1,303
Posted By Bry195

im not talking about any high end motor...

im not talking about any high end motor controller. they are all over ebay and the dumber the better. its easy enough to pick one that has enough power. you are close with watt hours but itís usually...
05-28-2019, 08:19 PM
Replies: 7
Views: 1,303
Posted By Bry195

do a search on ebay. the motor controllers are...

do a search on ebay. the motor controllers are about the same price as a powersupply and discharger. some of the controllers have software but not all end it doesnít need reprogramming. you might...
05-27-2019, 07:43 PM
Replies: 7
Views: 1,303
Posted By Bry195

regenerative power supply

why does everyone use a conventional power supply for there chargers? An industrial dc motor speed controller will convert ac to dc and because dc motors brake these motor controller have a dc...
Showing results 1 to 25 of 306
 


 
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