You can probably get a step down converter & step down the 33v to 24v. Also, I think they make a four wheel drive version of that model. Perhaps, you might be able to find a front suspension part, that has the motor mounts. Alternately, I don't know how long the shafts are, but there might be some stops on the shaft that could be ground down. Then you could slip motor gearboxes on the front. You'd just need cable ties to secure the motors. Then, you'd need an extra set of rear wheels, to fit on the gearboxes. Accordingly, there is a separate speed controller, that will support four motors.
@@DeveloperDIY One thing to note about the gearboxes for generic cars: They often tell you in the description what axle size they are designed for. Sometimes, the seller will have more than one version of the gearbox. I believe your Mercedes has 10mm axles - front and rear. Also know that very high speed motors tend to be a bit less tolerant of over voltage. They might also be a little low on torque, too. The higher RPM the motor, the more you might want to keep the voltage stock & rely on the higher RPM rating to deliver the speed you need. I mean, 40,000 RPM is a lot faster than 12,000, after all. This video shows a four wheel drive version of the Mercedes. It's currently running the stock motors. Right now, I'm just working on the programming necessary for it to work. ruclips.net/video/dTYz7ChCd2U/видео.html
@@DeveloperDIY Right now, I am working on lightning, and an improvised control system. I am using an ESP32 board for the wireless, and I am using an Arduino for the sensors, since they are 5 volts. I am using the ESPnow protocol for communication. I am sending the signals to the Arduino's analog input as PWM. When I get things working, I think I will pursue camera input. That seems to be the cheapest solution & communicates the most information. I might then supplement with sonar. Lidar is a bit out of my price range right now, but that would be the ultimate goal. For the Mercedes, I am using two motor controllers, to give the motors the most power. ESPnow can broadcast to multiple units at once, so the front and rear each have their own unit to control the motors. I have an additional ESP unit with an external antenna, that relays the commands to the front and rear units. It is directly wired to the Arduino, which controls the steering. Right now, I have switched focus to my Mini Countryman, which has a simpler 2WD setup. I am about through with the lighting setup that I want.
In the UK I’ve used Amazon and eBay. If you search for “ride on car gearbox” they will range from £16 to £25 for a pair. Just check the voltage and the RPM you need. Remember, the faster they are the less torque they have. Otherwise if you don’t mind waiting then I’ve also bought ones direct from China using AliExpress. I’ve always found them reliable and slightly cheaper when you factor in tax and shipping.
Yes, the existing speed controller does have soft start. I’ve not used the new controller and pedal yet. I’ve been side tracked by the pizza oven project. I’ll have another go at the car later this year.
@@beforeyourimmigrants8471 That would be a great addition to help protect the batteries. Maybe set around 3.2v per cell as a cut off. I always supervise the kids when they use the vehicles with lithium polymer batteries so I can check their temperature and voltage. It’s best not to take chances with lithium based batteries, they need treating with respect.
You can probably get a step down converter & step down the 33v to 24v. Also, I think they make a four wheel drive version of that model. Perhaps, you might be able to find a front suspension part, that has the motor mounts. Alternately, I don't know how long the shafts are, but there might be some stops on the shaft that could be ground down. Then you could slip motor gearboxes on the front. You'd just need cable ties to secure the motors. Then, you'd need an extra set of rear wheels, to fit on the gearboxes. Accordingly, there is a separate speed controller, that will support four motors.
Thanks. I’d not considered making it a 4x4, that’s a great idea.
@@DeveloperDIY One thing to note about the gearboxes for generic cars: They often tell you in the description what axle size they are designed for. Sometimes, the seller will have more than one version of the gearbox. I believe your Mercedes has 10mm axles - front and rear. Also know that very high speed motors tend to be a bit less tolerant of over voltage. They might also be a little low on torque, too. The higher RPM the motor, the more you might want to keep the voltage stock & rely on the higher RPM rating to deliver the speed you need. I mean, 40,000 RPM is a lot faster than 12,000, after all.
This video shows a four wheel drive version of the Mercedes. It's currently running the stock motors. Right now, I'm just working on the programming necessary for it to work.
ruclips.net/video/dTYz7ChCd2U/видео.html
@@jeremygeorgia4943 that looks like an awesome project! Are you planning to use sonar sensors or some kind of LiDAR setup? That would be immense.
@@DeveloperDIY Right now, I am working on lightning, and an improvised control system. I am using an ESP32 board for the wireless, and I am using an Arduino for the sensors, since they are 5 volts. I am using the ESPnow protocol for communication. I am sending the signals to the Arduino's analog input as PWM. When I get things working, I think I will pursue camera input.
That seems to be the cheapest solution & communicates the most information. I might then supplement with sonar. Lidar is a bit out of my price range right now, but that would be the ultimate goal. For the Mercedes, I am using two motor controllers, to give the motors the most power. ESPnow can broadcast to multiple units at once, so the front and rear each have their own unit to control the motors.
I have an additional ESP unit with an external antenna, that relays the commands to the front and rear units. It is directly wired to the Arduino, which controls the steering. Right now, I have switched focus to my Mini Countryman, which has a simpler 2WD setup. I am about through with the lighting setup that I want.
@@jeremygeorgia4943 Good luck, I can’t wait to see the video. It sounds like a very big project.
Where did you get all of your parts from? My son has a similar land rover and i would love to do this for him.
In the UK I’ve used Amazon and eBay. If you search for “ride on car gearbox” they will range from £16 to £25 for a pair. Just check the voltage and the RPM you need. Remember, the faster they are the less torque they have. Otherwise if you don’t mind waiting then I’ve also bought ones direct from China using AliExpress. I’ve always found them reliable and slightly cheaper when you factor in tax and shipping.
@alextopper9638 for the controller search for “weelye controller”. You can get fully wired or do it yourself.
You can't program the controller? You have a soft start on it?
Yes, the existing speed controller does have soft start. I’ve not used the new controller and pedal yet. I’ve been side tracked by the pizza oven project. I’ll have another go at the car later this year.
@@DeveloperDIY ah ok. I've never used the LiPO batteries. Do you need a low voltage cutoff for it?
@@beforeyourimmigrants8471 That would be a great addition to help protect the batteries. Maybe set around 3.2v per cell as a cut off.
I always supervise the kids when they use the vehicles with lithium polymer batteries so I can check their temperature and voltage. It’s best not to take chances with lithium based batteries, they need treating with respect.