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Farm Tractors and Implements Discussion of farm equipment


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  #61  
Old 11-14-2013, 02:26 PM
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Originally Posted by Espeefan View Post
Looking really good, Stu. I can't wait to see what you come up with for the 3 point hitch. I might find myself in the same situation someday. I really want to build a tractor.
Thanks, go for it, its a challenge but great fun

Made a start on the front hitch:





Thanks for lookin
Stu
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  #62  
Old 11-14-2013, 03:04 PM
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Default Re: New Project!

Machined from solid piece of aluminum... life must be good.
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  #63  
Old 11-18-2013, 02:12 PM
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Machined from solid piece of aluminum... life must be good.
Bien sur!

Front hitch arms & linkage:








Stu
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  #64  
Old 11-18-2013, 02:37 PM
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Default Re: New Project!

Nice work Stu. Are the lifting arms pinned to the shaft, or just secured with set screws? How much power does your lifting servo have? The parts are looking good!
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  #65  
Old 11-18-2013, 02:59 PM
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Originally Posted by Espeefan View Post
Nice work Stu. Are the lifting arms pinned to the shaft, or just secured with set screws? How much power does your lifting servo have? The parts are looking good!
Thanks Nate, I machined a flat on each end of the shaft and they are set screwed in place for now, there's enough meat there to drill and pin if required.

Its a metal geared servo rated at 15Kg/cm stall @6v 13kg @4.8v

My lift arms are 60mm long and the crank is the same length as the servo arm so should stall at around 2kg if my maths is right? long time since i've done those sort of claculations!
Should be way more than I plan to use anyhow.

Stu
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  #66  
Old 11-18-2013, 04:04 PM
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Awesome work!

Can't wait to see it fully operational.
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  #67  
Old 11-25-2013, 09:21 AM
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Awesome work!

Can't wait to see it fully operational.
Thankyou, yeah I'm looking forward to it too, can't wait to see how much pulling power these motors have.

Waiting on more stuff to arrive, then I can get it wired up properly.

Cheers
Stu
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  #68  
Old 11-25-2013, 07:32 PM
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Default Re: New Project!

This is a fantastic build, I can tell this tractor is going to work very well. Please go into more detail about how you set up the pivot motor with the pot and speed controller so that it functions like a servo. I am not very good with electronics, but I am very intrigued by your setup and would like to know more.


Thanks for sharing with us all.
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  #69  
Old 11-29-2013, 03:14 PM
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This is a fantastic build, I can tell this tractor is going to work very well. Please go into more detail about how you set up the pivot motor with the pot and speed controller so that it functions like a servo. I am not very good with electronics, but I am very intrigued by your setup and would like to know more.


Thanks for sharing with us all.
Thanks FB, no worries I will take some more detailed pics of the steering setup over the weekend.

Thanks for looking

Stu
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  #70  
Old 11-30-2013, 12:07 PM
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Some pics of the steering setup.

The 10k pot fitted to the steering pivot:



This is the speed controller, 3 wires go to the pot, 2 to the motor, 2 to the battery and the other 3 to the receiver. Its less than an inch square and 1/4 inch thick:



Started on the wiring, I'm using jst connectors so its all "plug & play" and all the electronics are mounted to a removable plate, so far I have 4x speed controllers (1x throtle, 1x steering, 2x for the implement I plan on making) and a ubec. Next is the sound unit, speaker and lights, hope it all fits



Cheers
Stu
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  #71  
Old 12-08-2013, 08:26 AM
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Got some more done this weekend:

Sound module



Receiver



Speaker



Lights





A quick vid:

Sounds & Lights test

Will do an outside vid soon

Stu
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  #72  
Old 12-08-2013, 11:43 AM
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Sun was shining this afternoon so I thought I would find out how well it pulls a trailer:

Trailer full of sand

Stu
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  #73  
Old 12-08-2013, 12:03 PM
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Default Re: New Project!

Stu;

Very good job on your engeering and maching.

I think that with 4 geared motors you will have more power than traction.

Thank you for posting your build.

Ken
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  #74  
Old 12-08-2013, 06:22 PM
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Default Re: New Project!

You must be quite pleased seeing your hard work & great planning in motion. Well done Stu

Is the start up adjustable so it doesn't take so long? ...I like my stuff to start at the touch of a key.
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  #75  
Old 12-08-2013, 08:37 PM
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Default Re: New Project!

Looks and works nice, Stu. Great job with the lights and with fitting all the necessary electronics in such a small space. I like the front speaker placement too. What are your thoughts on the wheel motors, now that you've had a chance to run them?
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  #76  
Old 12-09-2013, 01:53 PM
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Default Re: New Project!

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Originally Posted by Ken Orme View Post
Stu;

Very good job on your engeering and maching.

I think that with 4 geared motors you will have more power than traction.

Thank you for posting your build.

Ken
Thanks Ken, yes your right the tyres loose grip before the motors stall, so thinking of adding more weight. Maybe in the wheels???
It weighs about 4kg at the mo.

Quote:
Originally Posted by Lil Giants View Post
You must be quite pleased seeing your hard work & great planning in motion. Well done Stu

Is the start up adjustable so it doesn't take so long? ...I like my stuff to start at the touch of a key.
Yes I love it when a plan comes together

All the sounds are adjustable on the pc, then you load them onto a micro sd card and put the card in the sound module.

It has 2 sounds for starting, a "cold start" & a "warm start" with an adjustable timer for how long to wait when stopped before reverting to the "cold start"

I must have it set for Artic conditions I need to do more tinkering with the sound files.

Quote:
Originally Posted by Espeefan View Post
Looks and works nice, Stu. Great job with the lights and with fitting all the necessary electronics in such a small space. I like the front speaker placement too. What are your thoughts on the wheel motors, now that you've had a chance to run them?
Thanks Nate, I'm pleased with the speaker as well, although it does loose a lot of volume when you close the bonnet, sorry, hood

May need to cut some slots in the grill to let the sound out???

The motors are great, maybe not as smooth starting as the modelcraft ones but seem to have good power and as I said above, the tyres loose traction before the motors are anywhere near stalling. For the money and the fact they are centered, I would recommend them.

Thanks for all the compliments, still more to come

Stu
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  #77  
Old 12-10-2013, 07:10 PM
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Default Re: New Project!

That is a great build, Thanks for the additional details on the steering. I did not realize it was a commercially available setup. I thought you were an electronics guru and built it all youself. That is a really neat product. I cant wait to see more videos of your tractor working hard.

Thanks again for sharing.
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  #78  
Old 12-14-2013, 10:20 AM
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Default Re: New Project!

Quote:
Originally Posted by FlyingBeagle View Post
That is a great build, Thanks for the additional details on the steering. I did not realize it was a commercially available setup. I thought you were an electronics guru and built it all youself. That is a really neat product. I cant wait to see more videos of your tractor working hard.

Thanks again for sharing.
No worries & thanks for the comments, yeah the steering works really well, no fear of overloading at full lock.

I've shortened the warm start sound:

Another vid

Cheers
Stu
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  #79  
Old 04-15-2014, 02:34 PM
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First time in the model room since christmas! Where does the time go!

So a little update on the JD, mounted the rear mudguards and fitted the rear lights, also made a start on the rear implement sockets:



Thanks for looking
Stu
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  #80  
Old 04-15-2014, 03:17 PM
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Default Re: New Project!

Great job Stuart, now we need video clip.
Jack
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