Re: New Project!
 

Nice work Stuart!

Re: New Project!
 

This a really cool build. I've seen the Blocher kits, and I always thought they were nice. I am sure those kits inspired you, and there is nothing wrong with that! I like the simple, clean, and functional chassis design. Those gearmotors have a definite advantage over the ones used in the Blocher kits. I like how the output shaft is centered in the planetary head. Where did you find motors like these? Are they as powerful, or more powerful then the ones that the Blocher kits run?

Re: New Project!
 

Thankyou!

Thankyou for the kind words, its very much based on the Blocher kit although not an exact copy;)

I'm yet to find out if the motors are strong enough:eek:
I posted where to get them earlier in the thread, they were quoted as 2.6kg/cm
I don't know what torque the Blocher ones have, I think they are made by Modelcraft.

Not much of an update, I made a new bottom plate for the rear, I wasn't happy with the original, also got the lift servo mounted, will swap this for a high torque one later, some goodies arrived so I fitted the lower bearing for the swivel:

http://i1252.photobucket.com/albums/...ps3d3be08c.jpg

http://i1252.photobucket.com/albums/...ps170de18c.jpg

http://i1252.photobucket.com/albums/...ps54ac350a.jpg

Will start on the rear motor tubes whilst waiting for more stuff to arrive.

Thanks for looking
Stu

Re: New Project!
 

Got some more done:

http://i1252.photobucket.com/albums/...ps49d30a18.jpg

http://i1252.photobucket.com/albums/...psc719ea85.jpg

http://i1252.photobucket.com/albums/...psa6cabe8b.jpg

http://i1252.photobucket.com/albums/...ps1698b1f8.jpg

http://i1252.photobucket.com/albums/...psa675de92.jpg

http://i1252.photobucket.com/albums/...ps1c44a448.jpg

http://i1252.photobucket.com/albums/...ps95c099be.jpg

Still have the rear hitch and the pivot to sort out
Cheers
Stu

Re: New Project!
 

Looking good, have you powered it up for a test yet?

Re: New Project!
 

Looks awesome!

Re: New Project!
 

my guess is something realy nice and that i will realy want

Re: New Project!
 

Thanks for the comments

I've bench tested the motors, once its a roller I will shoot a vid;)

Stu

Re: New Project!
 

Very nice work Stu. I'm looking forward to the videos. This such a cool a project. Thanks for sharing the info and answering my questions.

Re: New Project!
 

No worries, its why I joined the forum, to learn and to share:)

Ally arrived for the pivot:

http://i1252.photobucket.com/albums/...ps1cf3c547.jpg

A couple of hours later:

http://i1252.photobucket.com/albums/...ps395eb7e6.jpg

http://i1252.photobucket.com/albums/...pse0c5366c.jpg

http://i1252.photobucket.com/albums/...ps5bf60a43.jpg

http://i1252.photobucket.com/albums/...ps5cbf3fdc.jpg

Soon be ready for the first test vid:D

Stu

Re: New Project!
 

Looks nice Stu. Quick question though. The articulation joint looks rigid. Will you make a pivot point for one of the axles, so it can oscillate?

Re: New Project!
 

Looks like the whole arse end articulates to me...but what do I know anyway!lol

Nice machine work!

Re: New Project!
 

Oh crap. You're right! I was studying the articulation joint so much that failed to see the pivot behind it. D'oh! Actually looks like there is a bearing in there.

Re: New Project!
 

Ha Ha! Like this you mean:

http://i1252.photobucket.com/albums/...psc0fdfcc5.jpg

http://i1252.photobucket.com/albums/...ps56d8736a.jpg

Both the steering and rear end pivot on bearings.
Thanks for the comments.
Stu

Re: New Project!
 

Time for the first test vids.
The banging noise in the back ground is the wind, its between 30 and 80 kph today!

Enjoy:D

Bench test

Articulation test


Stu

Re: New Project!
 

Looks and runs great! Have you tried pulling anything yet? I'm curious how the motors perform under loads.

Re: New Project!
 

Awesome! I steer my Skidder in a similar fashion and I am wondering if you are going to put limit switches on there somehow? I don't have anything on mine but I guess it would be nice if someone else that wasn't familiar with it was operating it.

Re: New Project!
 

Not yet, that will be the next big test!

I've fitted a 10K pot to the steering pivot, not the best pic but you get the idea:

http://i1252.photobucket.com/albums/...pse0916e1f.jpg

It's connected to a special speed control which makes it work like a big servo, it doesn't self centre completely, wondering if I need to change the pot for different resistance:confused: it does however provide limits to the travel just like a servo, so no problem with stalling out the motor against the stops:cool:

Stu

Re: New Project!
 

Made a little progess on the rear end:

http://i1252.photobucket.com/albums/...ps535b8823.jpg

http://i1252.photobucket.com/albums/...ps71c52397.jpg

Front hitch servo:

http://i1252.photobucket.com/albums/...ps035d2909.jpg

Battery fits under the bonnet (hood!):

http://i1252.photobucket.com/albums/...ps23d25033.jpg

Couldn't resist a quick body mock up:

http://i1252.photobucket.com/albums/...psaf91a26c.jpg

http://i1252.photobucket.com/albums/...pse6497752.jpg

http://i1252.photobucket.com/albums/...ps707c75bc.jpg

Cheers
Stu

Re: New Project!
 

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.