DIY 4X4 RC Lawnmower

[@sethsapia4060]

‼️Parts list ‼️ Electric motors- amzn.to/3KqY93O Tires- amzn.to/3Kl42zL Electric drives- amzn.to/3Knd92M Remote control- amzn.to/4aLiRpX Battery’s- amzn.to/3KrOgTH 24 volt charger- amzn.to/4aDtonb Battery gauge- amzn.to/3VjaBsJ Electrical box- amzn.to/3wZsHXs On/off switch- amzn.to/3R7tkoM Fans- amzn.to/3KqYxiM On/off relay- amzn.to/3R3SDYP Diodes- amzn.to/3wLwNCA

[@AChi__]

You can get better turning by make the two wheels diagonally positioned from one another spin in the same direction and opposite to the other two diagonally positioned wheels. Nice mower and good luck.

[@russyates482]

Yes I among others would really like to see the wiring video. That’s looks like an awesome build and it has inspired me to build one myself. Thanks for posting the build video

[@sethsapia4060]

Coming soon!

[@brandonforesee3593]

Yes please a in depth how to for the electrical, set up the remote, etc.

[@sethsapia4060]

I should be able to do that soon.

[@brandonforesee3593]

@@sethsapia4060 how do you think this would do in 2ft bone dry grass?

[@sethsapia4060]

@@brandonforesee3593 it would do fine as long as you raise the ride height. I’ve cut the bayou side at that height already. Just took two passes.

[@doingstufforatleasttrying4843]

Nice…. Definitely like the way you kept it small. I also made one but, not 4x4 and I think I’m going to rebuild mine… nice job…

[@sethsapia4060]

Appreciate it

[@P.Trim69]

Yes Sir that's nice looking good job.

[@sethsapia4060]

Thanks 👍

[@jochenweisel8612]

Awesome. I am waiting for my motors at the moment, the other stuff is waiting at my workbench

[@sethsapia4060]

Nice man lmk if I can help with anything

[@Thunderst0rn]

Very nice build! What is the weight of the mower after the build and what power are your motors? Cheers!

[@sethsapia4060]

250w 24v 120rpm. Makes .8 nm of torque. I never weighed it but it is definitely heavy.

[@P.Trim69]

Thinking on using a riding mower deck 46" maybe build a little frame wheels and radio stuff. then bolt deck to it or Bolt to deck wheels radio stuff . Not sure just seeing what sticks to wall when I throw it. . Really what junk I can dig up out building around house.

[@sethsapia4060]

would be nice to have a big deck. i don't think it would be to hard. hardest part would be mounting the motor to turn the blades

[@JamesConheady-p9w]

Nice job. How do you think having only two rear motors (250W each) with swivel front wheels would work?

[@sethsapia4060]

@@JamesConheady-p9w I think it would work fine as long as you have a level yard. I put four being I have a big slope in my yard.

[@vern2992]

I like that you kept the height adjustment mechanisms. Other similar builds hard mounted the motors, which don't allow height adjustment. Did you 3d print the wheel hubs? Would you share your cad file for the motor mount?

[@sethsapia4060]

There is a mention in the video but the file came from a KZbinr named tool_time. I’ll see if I can comment a link of the file here.

[@vern2992]

@sethsapia4060 I've watched tool_time's video, and the STL file is linked on it for the hubs. Will you share your CAD file for the mounting bracket?

[@sethsapia4060]

@@vern2992 I just added it to thingiverse. It says I need to wait 24 hours since I'm a new user. www.thingiverse.com/thing:6633191/files you can try this link but it may not work for 24 hours. the holes don't line up perfectly to the electric motor. I just used it to trace out where I needed to cut for the metal ones.

[@xjerrodsx]

@@sethsapia4060 Unfortunately it says your thingiverse doesn't exist :/

[@sethsapia4060]

@@xjerrodsx I’ll try to update it. Was the first time i ever tried to post something on there.

[@bartdelabarre3432]

good job!

[@sethsapia4060]

@@bartdelabarre3432 thank you.

[@AdrianneGutman]

Super cool project! Were there any other cheaper motor alternatives you were considering? I was thinking about building something similar, but adding in an IMU to try to give it paths to follow, making it semi autonomous :D

[@sethsapia4060]

@@AdrianneGutman if my yard was flat it would have been a lot cheaper to go with two motors and swiveling wheels in the front but I needed the 4wd. Unfortunately for the torque I was looking for I didn’t find many other option’s cheaper.

[@AdrianneGutman]

@ thanks for the insight! I’ll keep that in mind with my project too

[@CalenMac]

Wow 4 motors this is a great idea. What connector adapters did you use to connect the motors to the motor driver? Or did you just cut it off? Also where did you get the materials to attach the wheels (nuts and that black circle thing in the center of the wheel)? Where did you get the rims? They look like harbor freight rims.

[@sethsapia4060]

@@CalenMac rims came from northern tool, black adapter is 3d printed (file from KZbinr @tool_time). Regular nuts and bolts from hardware store and the wires I cut and wired into the controller.

[@P.Trim69]

Cool. Not bad at all.

[@sethsapia4060]

thanks man.

[@sop1978]

Very good.. i try to built this later.. Do u install alternator for chaging battery? if not how long battery could last?

[@sethsapia4060]

i was planning on adding one but i am able to cut my yard 3 times without charging the battery's. so i decided to not add one being it makes it that long without needing a charge.

[@jimrainey1518]

Great Thanks GIVE US MORE!

[@sethsapia4060]

Appreciate it. I’ll definitely try to get some more videos made!

[@zawadctg]

Can you please post measurements for the bracket. Maybe a picture with measurements will be great

[@coccoc647]

I like the setup. Can you list the all parts. Thank you.

[@sethsapia4060]

Just pinned a comment with a parts list with links to everything I got off Amazon for the build.

[@Chrisb-l7s]

I'd fill the tires with rv anti freeze put so weight in the tires.

[@BigORider]

Would it have been more cost effective to use two mowers and a track Instead of 4 motors ?

[@sethsapia4060]

@@BigORider the price of two motors vs the price of everything to make tracks were was cheaper.

[@karlnone8422]

I see where you got the tires but where did you get the rims?

[@sethsapia4060]

@@karlnone8422 cheapest place I found them was northern tool. It’s a two piece 4 inch rim.

[@tool_time]

nice build! why you use 2 smart drive controllers?

[@sethsapia4060]

Thanks man and to have true 4x4 with one smart drive the wheel spin would be sent to the tire with least resistance and only spin one of the two tied in.

[@tool_time]

OK, my mower work perfectly with one

[@sethsapia4060]

Yeah I may try one my yard just has a big slope and some hills and stuff so I figured I’d get stuck more often with just one. One may even be better I haven’t tried it but i might.

[@bbbbbb3563]

Hey, good job. About the two Motor Controllers, mine works perfectly with one. So you might can use one of them, for your next Mower Project😊

[@reviewpops1014]

What lawn mower?

[@obrazyzkovu3322]

Hello, can you send me the 3D model or dxf in inscape or fusion from the part that hold the motors?

[@sethsapia4060]

I tried to upload a file but it didn't work i will try again though

[@romanpaliga7517]

How to control two SmartDriveDuo-30 from one RC. I have 4WD Mobile Platform.

[@sethsapia4060]

@@romanpaliga7517 one esc drives the back one drives the front. Then from the rc one connector is spliced into each esc so they get the same exact input to tie them together.

[@kamilbednarz227]

What's the motor driver?

[@sethsapia4060]

I’m running two cytron 30amp smart drives.

[@jchestnuts]

Nice project Seth. What wheels did you use? I see the motors are rated 120 RPM, would you change the RPM if you could, or stick with the 120 RPM? Would you change the size of the wheels or tires? Do you plan to add any more controls, like gyros, accelerometer, GPS, or combined as a IMU? Thanks!

[@sethsapia4060]

I like the rpm the higher speed is nice when your just traveling can’t cut at full speed unless the grass isn’t crazy tall. But I noticed the 120rpm is out of stock now and they only have 75rpm available. Might do some upgrades in the future was thing fpv setup. GPS would be hard with the big slope in my yard but you never know.

[@sethsapia4060]

Also the wheels came from northern tool 4 inch 2 piece rim.

[@Slingshotman0]

what is the model of the cutter?

[@sethsapia4060]

@@Slingshotman0 Husqvarna HU725AWDEX (22″). But I believe it’s discontinued it’s an old mower.

[@Slingshotman0]

@@sethsapia4060 I have been looking for a good lawnmower for a project

[@Slingshotman0]

what kind of model would you suggest?

[@sethsapia4060]

@@Slingshotman0 don’t matter to much as long as it’s got a good running engine. You take everything else off.

[@AChi__]

​@@Slingshotman0 Husqvarna mower are very good. I own one and it cuts well, and no, it's not for sale 😂