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Picture of Remote Controlled Lawnmower
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Remote controlled lawnmower.  The mower deck is a 22 inch Weedeater from WalMart.  The wheel chair motors are Merits.  The motors run at 12 volts and the battery is recharged by a GM alternator.  The transmitter is a Futaba T4YF. The speed controllers (2) are from Astroflight.

http://www.astroflight.com/index.php?main_page=advanced_search_result&search_in_description=1&zenid=tqpfersg037p2urauvdca9d7t67khevp&keyword=208D

The mower has been in service for over 5 years and works great!
Craig Schmidt20 hours ago
Bob can you send me the pdf and any other pics you have? Thanks my email is craig_schmidt77@uahoo.com
Bob Bowie (author) 16 days ago

RandyS5, Please send me your email address, and I will send you a PDF that will answer most of your questions.

I would like the PDF also. I had plans for putting an alternator on this type of setup myself. Plus i have one more trick up my sleeve but i want to make it and see if it works first before i put it out for all to see. My email is darkavenger112@gmail.com Great job on the mower

RandyS516 days ago

I love this lawn mower! I am going to make one. The question is. Is there a way you can take a photo or make a quick drawing of the frame that you made out of 1" Steel tubing? I cant see how the battery is mounted or where it sits? I'm guessing that the frame is rectangle but then in the rear of the mower, it must have a L bracket so that you can mount a plate for the battery? Any suggestions or info would be amazing. Do you sell complete plans on how to make this step by step? thanks, Gary

tj281 month ago

I am in the process of making this. how do you stop lawn mower blade remotely? is there a way to do this? I just want to be safe and prevent accidents.

thank you

Bob Bowie (author)  tj281 month ago

I have a servo mounted on the mower that activates a switch. The switch activates a 12 volt relay. The relay actives the kill switch (i.e., grounds the spark). There is also another switch on the mower that grounds the spark if for any reason the remote kill does not work.

jim.t.jones.95 months ago

sticks and stuff doesn't affect the alternator belt or anything? im attempting to hook an alternator to a model im working on but i figured the belt would get beat up being under the deck of the mower.

Bob Bowie (author)  jim.t.jones.94 months ago

alternator belt lasted over 2 years before replacement

Bob Bowie (author) 6 months ago

The mower deck is 22" from Walmart. I drilled a hole in mower deck to mount alternator. Used a die grinder to cut swivel hole in deck for alternator to swivel. Used a double pulley on alternator to clear underside of mower deck. Pulley on motor shaft to drive alternator-MKAMA26 x 7/8" shaft. Belt-24"-DriveRite#15235DR 10A0600 purchased at Pep Boys. One wire alternator goes to positive + battery terminal. Ground to negative - bat term. See earlier comments for source to buy 1 wire alternator, wheel chair motors, astro-flight controllers, and Futaba receiver and transmitter. Rear wheels were from Harbor Freight. Front casters were from Northern Tool. Frame is 1" square tubing. Mower has been in service for 5 years.

oldbarnes6 months ago

Do you have a step by step procedure of how you built this? A quick guide or a video explaining how you built this would be great.

Thanks

master key1 year ago
very cool, too bad the tinfoil and hot glue weedeater deck will rust out quickly.

Hater.

David973 years ago
Cool I was looking at doing the same thing, do youknow where i could get the samemotors second hand
Bob Bowie (author)  David973 years ago
eBay is a good source for wheel chair motors. The ones I used are Merits Part #'s WMT90423 and WMT90424.
I can't find those part numbers anywhere. Are you really using 12v motors, or are you using 24v motors and just running them at 12v?
Bob Bowie (author)  secretspy7111 year ago
Yes, these are 24Volt motors running at 12V. Not a problem. They have plenty of power and RPM. eBay is a good source for wheel chair motors. The ones I used are Merits Part #'s WMT90423 and WMT90424.
Bob Bowie (author) 2 years ago
You can view a video and pictures of my remote controlled lawnmower at:

http://www.instructables.com/id/Remote-Controlled-Lawnmower/

Currently, the mower is controlled by a Futaba 4YF transmitter. The 2 receivers
mounted on the mower receive signals from the Futaba transmitter and send commands via 2 Astro-flight 208d Reversing Controllers to 2 12volt wheel chair motors, which drive the mower.

I want to interface my Windows 7 PC to allow the following 2 steps:

Step #1-Learn Mode
Control the 2 Astro-flight 208d Reversing Controllers on the mower via the PC
keyboard or PC joystick and record the sequence of commands to the PC.

Step #2-Playback Mode
Place the mower in the same start position and send commands recorded on the PC in
Step #1 to the mower.

Is there a way to plug the 2 Astro-flight 208d Reversing Controllers into an
Arduino board that can be controlled by my Windows 7 PC? Specs on the Astro-flight
controllers can be viewed at:

http://www.astroflight.com/208d.html

Thank you,
Bob Bowie

fireplace2 years ago
how did you hookup youre alternater?
Bob Bowie (author)  fireplace2 years ago
I drilled a hole in mower deck to mount alternator. Used a die grinder to cut swivel hole in deck for alternator to swivel. Used a double pulley on alternator to clear underside of mower deck. Pulley on motor shaft to drive alternator-MKAMA26 x 7/8" shaft. Belt-24"-DriveRite#15235DR 10A0600 purchased at Pep Boys. One wire alternator goes to positive + battery terminal. Ground to negative - bat term. See earlier comments for source to buy 1 wire alternator.
frost7k2 years ago
what do you use as the controle system i want to use wiper motors to run platforms but idk if the wiresless reciever i have will transfer over to controle the motors
Bob Bowie (author)  frost7k2 years ago
The speed controllers from Astroflight plug into the radio receiver and the drive motors. I'm using Merits wheel chair motors running at 12 volts DC. The speed controllers give you forward and reverse control. They can be purchased from Astroflight. The web site is:

http://www.astroflight.com/index.php?main_page=advanced_search_result&search_in_description=1&zenid=tqpfersg037p2urauvdca9d7t67khevp&keyword=208D

My transmitter is a Futaba T4YF. The receivers I'm using are compatible with the Futaba transmitter, but I feel certain most transmitter/receiver combinations will work. You might contact Astroflight to confirm. (949-855-9903)
DavisM2 years ago
is there anyway you could do a step by step
Bob Bowie (author)  DavisM2 years ago
Build frame from 1" tubular steel .

Add casters in front, wheel chair motors in rear with wheels from Harbor Freight.

Mount alternator on mower deck

Bolt mower deck to frame.

Add plastic junction box to frame to hold receivers & Astroflight devices.

Wire Astroflight devices to wheelchair motors and 12 volt battery.
mtd0915713 years ago
Very Cool! Can you tell me what gm alternator you used? I am trying to make one now. I have the basics. motors, controller, radio, lawnmower. Wanted to add a alternator and a failsafe switch. Awesome, thanks for the contribution.
As far as  alternators go, there are a number of one wire GM alternators available. These used by a lot of hobbyist  because they are so easy to hookup.
Bob Bowie (author)  mtd0915713 years ago
A good source for GM alternator is Dale Marlin (918-519-6839). Dale rebuilds alternators and sell them for around $65 to $70 plus shipping from Oklahoma. You will need a pully with 2 v-belt grooves. You use the 2nd groove (farthest away from alternator) to clear the mower deck.

Dale is honest and does a good job rebuilding them. Get 1 GM 1 wire the puts out 65 amps.

Good luck!