An LDD model of a Caterpillar D9-class dozer being transported on detachable gooseneck trailer.
About this creation
This is an LDD model of a Kenworth tractor pulling a detachable gooseneck low-loader trailer carrying a Caterpillar D9-class dozer (actually, I am still working on the "detachable" part -- mine is permanently connected as it stands now).
I was hoping to do a D10 or D11 class dozer, but at this scale, the treads of a D10/D11 would be almost exacly 1.5 studs wide. Neither a single row nor a double row of chain links looked quite right. Fortunately, a scaled version of a D9 has treads that are just slighly wider than one stud, so it was a natural fit.
Strictly speacking, the dozer is about 6.5 studs wide at its widest point (i.e "width over trunnions"), but the scale is compatible with other 4-wide vehicles (1 stud ~= 2 feet). My D9 is a little bit too large given the scale, particularly in the vertical dimension, but there was only so much I could do without seriously compromising the structural integrity of the dozer. The rear is a little ugly too, but at least it is partially covered by the ripper.
I was going to put the dozer on my 13-axle transport, but I realized that a D9 is light enough to be carried on a normal heavy-duty low-loader, so I decided I'd take the opportunity to build another trailer.
This model is now part of a Cuusoo idea. Consider supporting it if you like it.
Here are some close-ups of the dozer itself. I tried to do a reasonably good job of modeling the hydraulics controlling the blade and the ripper, but a few compromises had to be made (e.g. the hydraulic ram controlling the ripper elevation is absent -- I just couldn't fit it in at this scalie).
Quoting Nick Barrett
Superb; amazingly realistic at any scale, let alone this size! Brilliant work.
Quoting clayton Marchetti
Awesome truck looks great loads of detail but I think the cat steals the show! Fantastic job 5/5
Quoting Mihe Stonee
very impressive work! it's beautiful done in every detail!
Thanks for compliments everyone! I already have a plan for my next "4-wide" project. I don't want to let the cat out of the bag yet, since I'm still not 100% certain that I can solve the structural issues. I'll say this, though: It is something that has rarely been modeled in LEGO, and, to the best of my knowledge, never at a scale this small.