1/14 Grader Caterpillar 12F
 

Because I saw some graders in this forum, I want to show you the grader, which is currently on my workbench: it is a Caterpillar 12F. The original was build until 1973 and it was the last one with a mechanical controlled blade. The scale of my model is 1:14.

My model is based on a 1:50-model of this grader from Gescha and a original brochure from the cat 12F. Additional I found a lot of pictures of this grader in the internet.

I started with the blade. For movement of the blade I used a Faulhaber-motor with a planetary gearbox (dia. 10mm).

Here some pics:

http://farm8.staticflickr.com/7060/6...66c38f5f_b.jpg


http://farm8.staticflickr.com/7195/6...056295fb_b.jpg


http://farm8.staticflickr.com/7182/6...9d5b883e_b.jpg


http://farm8.staticflickr.com/7189/6...8294a340_b.jpg


http://farm8.staticflickr.com/7203/6...ef2dae2e_b.jpg


http://farm8.staticflickr.com/7041/6...35a202b8_b.jpg


http://farm8.staticflickr.com/7043/6...eae062a5_b.jpg


http://farm8.staticflickr.com/7185/6...f39f33a7_b.jpg


http://farm8.staticflickr.com/7183/6...50485050_b.jpg


http://farm8.staticflickr.com/7200/6...d3df17e8_b.jpg

Re: 1/14 Grader Caterpillar 12F
 

Wow!!!!!! Outstanding start for your grader!
Cheer's, Neil.

Re: 1/14 Grader Caterpillar 12F
 

Beautiful work!

Re: 1/14 Grader Caterpillar 12F
 

I like gearboxes!! Very nice job on the moldboard assembly!!

Re: 1/14 Grader Caterpillar 12F
 

Welcome Chris,

finally the graders are taking over the world! =)

Cheers
Jens

Re: 1/14 Grader Caterpillar 12F
 

Very nice work! Thanks for sharing.

Re: 1/14 Grader Caterpillar 12F
 

It is crazy the models that are being built around the world. This is another build that I will be watching.

WOW

greg

Re: 1/14 Grader Caterpillar 12F
 

Gears, u-joints, shafts, bearings - they are beautiful things! The 12F was a cool machine just because of all the linkage and stuff. Looks great and am looking forward to see this one drag some dirt.

Ken

Re: 1/14 Grader Caterpillar 12F
 

Wow, welcome Chris and thanks for posting pics to another great build. Gotta go get some more popcorn :D

Re: 1/14 Grader Caterpillar 12F
 

Oh my goodness! I think I just had to pick my jaw off the floor. When I scrolled down to look at the rest of your pictures, I could have swore the very first photo looked like a 1:1 blade assembly, sitting there, in mint condition. Wow. Grader builds are getting popular here! That's fine by me. The quality of these builds is mind boggling! Yours is no different. Incredible work and craftsmanship!

Re: 1/14 Grader Caterpillar 12F
 

Not only is the popularity of road graders being built is surprising, but the extremely exquisite engineering & machining is like never before seen in a functional radio controlled model!

A great introduction Chris and welcome to forum. :cool:

Re: 1/14 Grader Caterpillar 12F
 

Another nice grader build. Have had 2 Cat 212, very funny to drive, guess running a model is just as fun. Those small precision motors with gearbox is very powerful. Velcome to the forum.
Dan

Re: 1/14 Grader Caterpillar 12F
 

Beautiful!! Man you got skills!

Re: 1/14 Grader Caterpillar 12F
 

awsome work!!!!

Re: 1/14 Grader Caterpillar 12F
 

Outstanding work!! CNC machining- I presume- at its best. Taking the added time to sand or bead blast the parts adds to the professional look of the build.:D:D

Re: 1/14 Grader Caterpillar 12F
 

Thank you for your friendly comments and your compliments.

Yes, most of the parts are done by my self-made CNC-routing machine. But additional I needed a 3D-CAD-system. Without CAD I could't do this quality.

Actually my grader is in a much more advanced status like shown this pics. In the next days I will update you step by step up to the current status.

Re: 1/14 Grader Caterpillar 12F
 

WOW!!!!!

I´m speechless. The finish of your work is really incredible. It just oozes quality.

Stefan

Re: 1/14 Grader Caterpillar 12F
 

I must agree with everybody, it looks great:). Nice to see older mechanical operated grader too.

Re: 1/14 Grader Caterpillar 12F
 

Here are the next pics: the front axle.

The wheel camber is only adjustable by hand, not by R/C. In this case, for me a scale appearance was more important…and anyway, there is no space within the frame to add any additional movement equipment.

The black oil hoses are only dummies.

http://farm8.staticflickr.com/7044/6...d7a04761_b.jpg

http://farm8.staticflickr.com/7200/6...56cfd3c9_b.jpg

http://farm8.staticflickr.com/7057/6...f29cf9dd_b.jpg

http://farm8.staticflickr.com/7197/6...24835439_b.jpg

http://farm8.staticflickr.com/7199/6...fddf749d_b.jpg

http://farm8.staticflickr.com/7183/6...4790bb77_b.jpg

Re: 1/14 Grader Caterpillar 12F
 

Outstanding machine work!! Looking forward to more pictures.