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Kettle Kart Mac OS

Kettle Kart Mac OS

June 01 2021

Kettle Kart Mac OS

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eKart Conversion for Kettler Kettcar Pedal Car

Kellen

I have two Kettler pedal cars I would like to convert to electric gokarts for my kids with a top speed of ~10mph. The drive train is a 1/2' bicycle chain with a 2' sprocket on the drive shaft and 10' wheels. I would like to use a foot controller for the acceleration and have a governor on the top speed within the circuit to 'train' my kids to drive these safely. This could be mechanical on the pedal or electronic. I was imagining 24v rechargeable supply. As far as I can tell I need the foot controller, governor, motor, motor controller, and charger? What parts would you recommend?

The most popular streaming platform for Twitch, YouTube and Facebook. Cloud-based and used by 70% of Twitch. Grow with Streamlabs Open Broadcast Software (OBS), alerts, 1000+ overlays, analytics, chatbot, tipping, merch and more. For Mac OS X 10.11 or later. I want to update Chrome This computer will no longer receive Google Chrome updates because Mac OS X 10.6 - 10.10 are no longer supported.

What else am I missing?

Thank you

Kellen

Kettle Kart Mac Os Download

ESP Support

I just did the gear ratio calculation for your project and the numbers are looking great. Using off the shelf parts that we have along with the pedal cars original rear sprocket and wheels, the pedal car will have a top speed 9.75mph. Our 24 Volt 250 Watt and 450 Watt gear motors with 9 tooth bicycle chain sprocket have a top speed of 400 RPM which is the ideal speed for your project. Here is a screenshot of the gear ratio calculation for your project.This project could use either our THR-90 plastic foot throttle or our THR-91 steel foot throttle. The plastic foot throttle mounts onto any relatively flat surface, while the steel foot throttle needs a rectangle to be cut out in the floorboard that it is mounted to. The steel foot throttle is better quality and easier to operate so if you have room and can cut out the mounting rectangle for it then it would be the best one to use for the project.
The controller depends on the Wattage of the motor that is used for the project. If the 250 Watt motor is used then our SPD-24250A controller would be a good choice. If the 450 Watt motor is used then our SPD-24500B controller would be a good choice. The 250 Watt motor would work good for flat ground only while the 450 Watt motor would be a better choice for going up inclines and hills.
The motors that I used for the gear ratio calculations are the MOT-24250G and MOT-24450G. These motors have a 9 tooth bicycle chain sprocket on them and a 400RPM output speed. Both of these motor look identical so I will attach one picture below to show what they look like.
The batteries used for this project could be any size that we sell. The larger the batteries the longer the run time of the pedal car will have before it needs to be recharged. If 5Ah batteries were used the pedal car will have a run time of around 15 minutes, with 10Ah batteries the run time would be around 30 minutes, 15Ah batteries would provide a run time around 45 minutes, etc. These run times are for flat ground riding and riding in hilly areas will significantly decrease the estimated run time.
The battery charger depends on the Ah rating of the batteries. Two 5Ah batteries could be charged with a 24 Volt 0.5 Amp battery charger. 8Ah through 15Ah batteries would require a 24 Volt 1.6 Amp charger, and 18Ah through 22Ah batteries require a charger that is 2.5 Amps or larger.
Regarding the speed limiter that is something that we do not have available right now. I will design one though and offer it to you. I will update this forum post after I figure out how to make one and upload a picture of it.
In the meantime please let me know if you have any questions.

ESP Support

I designed and tested a speed limiter that can limit the speed from 0-100% and ordered the parts to build them. After the parts arrive I will build them and post a picture of one here on this post. Then I will be able to create a kit for all of the parts that you need. I should have the speed limiter built in around a week.

Kellen

You are being so incredibly helpful. I truly appreciate it. Thank you!!!

ESP Support

You are welcome. I just got the parts in to make the speed limiter. I will have time to make it and post a photo of it here sometime next week.

ESP Support

I made the speed limiter today. Here is a photograph of it.

This speed limiter uses a mini screwdriver to adjust the top speed of the throttle. Top speed can be adjusted from 0-100% and anywhere in between. It is easy to install - simply plug this adjuster in between the throttle and controller.


It is our item # THR-ADJUSTER and available on this page:


If you would like for me to recommend a list of compatible parts for your project please let me know which throttle type, motor size, and battery size you would like to use. You could buy the individual parts and wire them together yourself, or we could make a kit out of those parts. Our kits come pre-wired so all of the parts are plug-and-play with each other. All of the kit parts have matching and labeled connectors on them so all you have to do is plug them together.

Kellen

Can you price out a kit with the following parts?

THR-91 steel foot throttle

SPD-24250A controller

The 250W motor which I think is MOT-24250G

20 aH 24V battery

24 Volt 2.5 Amp charger

the above speed limiter

Thank you!


ESP Support

Mac
Sorry for my late response we have been doing inventory this week. I just checked and we are currently out of the MOT-24250G motor. We have more of these motors being shipped by sea right now and they should arrive in around 4-6 weeks. Would you like for me to price out a kit with the MOT-24250G motor which will be available in April, or would you prefer an equivalent kit with our MOT-36250G motor which is in stock right now?

Kellen

Thank you. Could you compare the 36V 250W motor with the 24V 400W motor? I live in mostly flat terrain and was planning on the 250W version, but don't really want to wait until April. I am interested in the size (of motor and necessary battery), cost, and performance characteristics. Thanks very much.

ESP Support

The 36V 250W motor should have plenty of power for mostly flat terrain. The 24V 400W motor is not a gear motor so it would not work for your project because the gear ratio would be too high. We just got in some 24V 450W gear motors last week so using a 24V 450W gear motor is now an option. The difference between using a 250W motor and a 450W motor is that the 450W motor would have more hill climbing power and better acceleration than the 250W motor. The Voltage has nothing to do with either power or speed - the Watts rating is what determines the power of the motor.


Both the 250W and 450W motors would have the same top speed. I always recommend using the more powerful motor because you never know when you will need the extra power, such as going driveways and through dirt or sand. Also if a child is using the pedal car then as they grow and get heavier a larger motor will have enough power so it will be something they can grow into.

Kellen

Super. can you price out a kit with the following parts:

THR-91 steel foot throttle

SPD-24250A controller

The 450W motor which I think is MOT-24450G

20 aH 24V battery

24 Volt 2.5 Amp charger

ESP Support

We will need to upgrade the 250 Watt controller to a 500 Watt model for the 450 Watt motor. Also we have 18 Ah and 22 Ah batteries so I will quote you for the 22 Ah batteries, however if you want the 18 Ah batteries they will cost $5.00 less per battery. For the battery charger we do not have a 24V 2.5 Amp charger right now so I will quote for a 24V 3 Amp charger.



THR-91 steel foot throttle $29.95
THR-ADJUSTER adjustable speed limiter $9.95
SPD-24500B controller $39.95
MOT-24450G gear motor $119.95
BAT-12V22A 22 Ah 24V battery pack with fuse protected wiring harness $119.90 (2 batteries x $59.95 each)
CHR-24V3A3P 24 Volt 3 Amp charger $49.95
CNX-515 battery charger port $5.95
3 feet of 1/2x1/8 bicycle chain with master link $0.00
Labor to kit all parts together and make a plug-and-play system with matching and labeled connectors $0.00
FedEx ground shipping $15.00

Kettle Kart Mac Os Catalina


Grand Total $390.60
The SPD-24500B controller on the quote above has forward only and does not have a reverse. If you would like a controller with reverse it is an additional $20.00. If you opt for the controller with reverse we will include a toggle switch with it free of charge to switch the pedal car into reverse with.

Kettle Kart Mac Os X


If this kit looks good to you then please let me know and I will create the kit description and part number and attach link to buy it. If you want to make any changes to the kit please let me know and I will make the changes and re-total the price of the kit.

Kellen

It is all a bit more than I expected. How much would it be to go with the 24V 250W motor?

Thank you

ESP Support

I will create a kit with the 24V 250W motor for you in the next day or two. With the lower power motor the battery pack and charger size could be cut in half which will significantly reduce the price of the kit.

rich t

Kettle Kart Mac Os Update

Hi wondering about conversion kit.and if you have a less expensive kit
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