How many medium and large motors are good to have on hand for a variety of builds? My son and I have three large motors and one medium motor. I'm ordering additional parts and would like to get everything at once.
Well because most builds are assuming you only have 2 large motors and one medium motor, I would say that would be adequate. However, if you want to keep a robot around and work on another, you would have to buy more.
@@LEGORoboticsMrHino Researching the T-shirt folder made me see the need for three large motors, and that got me to wondering about other possible motor-intensive builds.
@@LEGORoboticsMrHino You've talked me into getting a second 31313 kit. Is it enough to service two complete 31313 kits with the plastic parts from one 45540 core set and one 45560 expansion set, or will I find that more plastic connectors will be needed?
Is the rotation sensor still good? Then don't throw it away! There are several applications where the motor's rotation sensor can be used as a control device for the EV3: I use my dead motors (NXT and EV3) as controllers on "remote" units that talk to "car" units through bluetooth. So far I've only seen one rotation sensor fail.
Yes. I send them to the distributor here (GAMMACO. I’m in Thailand) and it takes 3 days to repair. I have 3 out now and today 2 went down. Same issue. Hard to turn. I just drop them off and they repair them for me.
I think I know what the problem is. I teach robotics for kids, and I use a lot of these motors. Some years have passed since we first bought them, and now it seems that several motors have stopped working. I decided to open one of the broken motors to see what was happening. I discovered that the motor brushes were broken, so I replaced the electric motor with a new RF-500TB-14415C motor, which operates at 6V. Now the EV3 large motor works again, but for some reason, it turns slower than with the original motor. I don't know exactly which motor model is the correct one, so I'm going to try the RF-500TB-12560 6V motor. If anyone knows the correct motor model, I would appreciate it.
Please don’t throw them out!!! The motor costs $4 to repair, and the gears aren’t available anywhere else. Use them for spare parts to fix other motors. Or send em to me and I’ll fix what I can out of em. I’ll do it for free if you pay shipping.
@@poderis1088 number one issue is stripped gears. Unless you have a damn good 3D printer you can’t print that small. And since lego isn’t making them anymore we should be using the broken ones to fix the ones that can be fixed. They have “brushed motors” and the brushed wear out under load. It’s a piece of metal that costs less than $1 to make
@@poderis1088 if the outer shell is cracked, it can’t be fixed. This is a good time to “retire” that motor, that way if you have motors that break on you, you’ll have a working motor for spare parts. A cracked shell doesn’t mean a broken motor either, I have 3 or 4 with cracked shells and they work great. If you find a crack on the arm of the shell(towards the drive hub) stop using it immediately. The arm is full of gears with teeth that aren’t 3mm long. It’s very hard to make replacement gears.
Have you opened it? could you show what has failed inside?
Keeping motors healthy for 6 years is quite a good job. The new motors looked amazing!
Thank you Stephanie!! Oh I loved the look of the new motors!!
How many medium and large motors are good to have on hand for a variety of builds? My son and I have three large motors and one medium motor. I'm ordering additional parts and would like to get everything at once.
Well because most builds are assuming you only have 2 large motors and one medium motor, I would say that would be adequate. However, if you want to keep a robot around and work on another, you would have to buy more.
@@LEGORoboticsMrHino Researching the T-shirt folder made me see the need for three large motors, and that got me to wondering about other possible motor-intensive builds.
@@LEGORoboticsMrHino You've talked me into getting a second 31313 kit. Is it enough to service two complete 31313 kits with the plastic parts from one 45540 core set and one 45560 expansion set, or will I find that more plastic connectors will be needed?
My hubby is a mechanical engineer, he would definitely take it apart. I also have a locked up motor. I will try to let you know the outcome.
Is the rotation sensor still good? Then don't throw it away! There are several applications where the motor's rotation sensor can be used as a control device for the EV3: I use my dead motors (NXT and EV3) as controllers on "remote" units that talk to "car" units through bluetooth. So far I've only seen one rotation sensor fail.
I have exactly the same problem. Is there a way to fix the motors?
We've tried using different cables and bricks to no avail. The motor just got to end of its life.
Yes. I send them to the distributor here (GAMMACO. I’m in Thailand) and it takes 3 days to repair. I have 3 out now and today 2 went down. Same issue. Hard to turn. I just drop them off and they repair them for me.
why not try out vex robotics and snap circuits
We have had really good luck with Lego replacing broken pieces from the educator kit. Have never done a motor but did get a brain once.
Soo sad for broken EV3 motors
I think I know what the problem is. I teach robotics for kids, and I use a lot of these motors. Some years have passed since we first bought them, and now it seems that several motors have stopped working. I decided to open one of the broken motors to see what was happening. I discovered that the motor brushes were broken, so I replaced the electric motor with a new RF-500TB-14415C motor, which operates at 6V. Now the EV3 large motor works again, but for some reason, it turns slower than with the original motor. I don't know exactly which motor model is the correct one, so I'm going to try the RF-500TB-12560 6V motor. If anyone knows the correct motor model, I would appreciate it.
you can actually fix it, i had a broken motor too and i managed to fix it
how?
howw ?
Bạn đã sửa như thế nào?
buy the motor modelwith the same voltage and replaceit
Please don’t throw them out!!! The motor costs $4 to repair, and the gears aren’t available anywhere else. Use them for spare parts to fix other motors. Or send em to me and I’ll fix what I can out of em. I’ll do it for free if you pay shipping.
what's usually the problem? how do you fix them?
@@poderis1088 number one issue is stripped gears. Unless you have a damn good 3D printer you can’t print that small. And since lego isn’t making them anymore we should be using the broken ones to fix the ones that can be fixed. They have “brushed motors” and the brushed wear out under load. It’s a piece of metal that costs less than $1 to make
@@poderis1088 if the outer shell is cracked, it can’t be fixed. This is a good time to “retire” that motor, that way if you have motors that break on you, you’ll have a working motor for spare parts. A cracked shell doesn’t mean a broken motor either, I have 3 or 4 with cracked shells and they work great. If you find a crack on the arm of the shell(towards the drive hub) stop using it immediately. The arm is full of gears with teeth that aren’t 3mm long. It’s very hard to make replacement gears.
Can I ask what kind of screwdriver is used to remove the ev3 engine?
@ there is no engine in the entire ev3 lineup. Please be more specific
У нас тоже ломаются моторы ev3, но их можно починить, разобрав и заменив электрощетки внутри моторов. Будут как новые)
Do you have a film/pictures from that?
Can I ask what kind of screwdriver is used to remove the ev3 engine?