Wow! Thanks for sharing the

Wow! Thanks for sharing the informative post. A superb model.

Amazing!

That looks really good! Do you have any plans to share the .stl models?

Nice!

Good looking crusher, I can hear the noise and feel it shaking already.

Hey, just hide

a pager vibrator somewhere in it, and the shaking would be real!

Korea to the US...

very Impressive !! What Branch Benny??q

I have one question..... AIRBORNE or.........leg?? lol

just bust'n on you..i was part of the 41st Sig Battalion .. stationed at Camp Casey ..the Model looks great!! i have a small Quarry scene on my lay out and have been kit bash'n, and 

trying to build a prototypical crusher system.. with all of the Conveyor belts eventually running to the main  dump chute to fill the Hopper cars on the side line.  any thoughts or ideas you could share ??

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Air Force...Maintenance!

Juxen, I do not plan on sharing the .stl file at this moment.

Robin, there are some models out there but they're few and far between.  Walthers makes a couple conveyers and sells them separate from their larger structure kits.  The Walther's asphalt plant has a couple bins in it and a couple heavy conveyers, but the plant itself is a large modern permanent facility and I personally want something more akin to the batch plants...

I actually want to do an asphalt plant in the future, I've been buying brochures for a couple different companies.  Conveyors are also on in the "To Do" bin.  An asphalt spready will likely be the very next piece that gets finished...

Very Well Done

And that's all there is to say about that. 

Neat project Benny

  Very cool and well detailed project for you.  

     You mentioned your truck research.  If it matters to you? The M35 REO like that I don't THINK was built as a tractor only as a straight truck.  They did use those smaller 10.00x 20 tires. On a 6 lug rim.(about 40" tall) 2.5 ton axle.  The tractors normally had 11.00x20s (about 42" tall) on a 5 ton 10 lug axle. Then the heavier version of the truck with wrecker bodies etc...had 12.00x 20s around (44" tall) also on a 5 ton 10 lug rim and incredibly heavy.  The Roco 8 lug rims are ficticous. Like everything, maybe there is a prototype for everything but since your rock crusher is so detailed I thought  you might want the truck that way too. Of course the number of model railrodaers that are also into military axles is pretty slim so there should be no stressing. HA   Great work all the way around, cant wait to see it painted up.

Steve

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Steve,

I have run into 8 lug prototypes but it has been a while since I was looking for that sort of information and I don't much what to return to it.  What I did find was a tire chart for just about every vehicle the Army, from the little jeeps up to the M15/M25/M26.  The smaller tires on Roco's 2.5 ton trucks fit in line sizewise with that chart whereas there was a long string of trailers listed with 9.00x20" tires; WWII side of things, the 9x20 was likely used under this crusher.  I reckon the absolute correct tire under this is a 10x20" but it's not bothering me much.

M39 (M52 for tractor) series would be the 11/20" tire or so.  I do have a 5 ton tractor and wheelset, but I chose to stick with the arrangement of a 2.5 ton tractor.  I looked up the 2.5 ton M35 semi variant, they were billed under M48 and M275 but not many were built. 

The most common arrangement for towing this crusher would actually be a dolly (either built into the crusher per earlier models or on a 5th wheel as the models developed) under the crusher such that even a dump truck could lug it around via pintle hook.  I couldn't find a dolly in my pile and I simply went straight for the tractor.

Simply astonishing

Amazing work in 3D printing.

Pully belts - If you want the belts to be straight and taut, one possibility would be elastic thread.  EZ Line is normally used to model overhead telephone wires.  http://berkshirejunction.com/subdirectory/ez-line/

...

I will be using black wire for the pulley belts, once I find my wire.  I'll begin and end the belts in an inconspicuous place each time.

Primary Jaw Crusher

Hey Benny,

Long time no talk. Wow, from laser cutter to 3D printing. You've come a long way.

This may be what you're looking for. A jaw crusher. There is much in the way of pictures out there. I haven't come across any drawings with dimensions. I would think you could get general dimensions from the pictures of the equipment. It looks like they come in quite an array of sizes. Here's a link to a pretty good picture of a primary jaw type crusher. http://www.orecrusherfactory.com/orecrusherpro/5-jaw-crusher.html

My father-in-law had a small one powered by a pto from a tractor. It ate large shale rocks like crazy, but throw in a more rounded granite rock and it would spit it out like a bad tasting piece of food.

Looking forward to some of those prints. I could use a couple for my HOn30 quarry line. Keep us posted as to your progress.

Bernd

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I have a couple plans.  It's really a matter of deciding which one I want to pursue.  This one was the easiest to set up, the next one will require a lot more work.

The nice thing is that a secondary can work alone if the input rock is screened first to remove any larger heavy gravel or if the source is mostly smaller material.

Wow

Thanks for sharing your work on this unique model. These type of machines were pretty common at large construction sites.

Eric

M275 Tractor

Tractor designation for the 2.5 ton tractor was indeed the M275. And yes, there were very few of them. We had one in my first unit in Germany in the early 1970's. Great little truck - it would actually light up all four rear tires - so cool. Tire size, if I remember correctly, was indeed 9.00 x  20.

Great job on the model - so what if it isn't purely proto? It's still better than 90% of us can achieve.

Nice!

Nice!

Thanks for sharing!

Joe

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Jojijo, I was going through my research files and I indeed found you an 8 lug military rim under a generator set:

However, you will of course notice these rimes are four hole and the Roco wheels are 5 hole.

I have also discovered through my drafting adventures that the Lugs line up in direct relation to the holes; if there are four holes, the 8 lugs are spaced two per solid area of the rim or on either side of the hole.  If there are 6 holes and 6 lugs as per the common 2.5 ton tire, the lugs are each centered on the sold portion or centered between two holes - it's an important note as I get closer and closer to finalizing my wheel design files.

But then there are a few to watch out for, like the tires under a Kenworth M1 wrecker which have the ten lugs evenly spaced with one centered on the hole and one centered on the spoke.

 

I AM in luck in one regard - I have an actual M109A3 in the same Storage yard as my storage unit and only about 40 feet away, which means I was able to get some very accurate measurements for my 9.00x20 tires!

Cedarapid research continue to point towards a standard 10.00x20 tire in most civilian applications, suggesting postwar units would certainly be mounted on the 5 ton tire.  1940s WWII seems to favor the 2.5 ton application and the 9.00x20 tire, seeing how so many of the dump trucks appear to be 2.5 ton trucks.  The rock crushers (primary and secondary) were more commonly toted around on a dolly versus a semi tractor, allowing any truck with a pintle hook to move them around. 

I also just happened upon some primary research that I have been working on and it shows 6 spoke tires with 6 lugs...

The nice thing about the tire and axle setup is that it is entirely independent of the crusher rig - it's a bolt-on sub assembly as far as I'm concerned!!!

...

Steve...

So I started a couple month ago fresh with the perfect candidate for my modeling, you see, there's this truck sitting in the yard where I have stuff in storage, and when it comes to drawing up these things I've been drawing, I have found there's nothing that beats working from the prototype versus measuring versus a plan, picture or model even with manufacturer tech data.

I had measured the tires a couple months before, but I lost the notepad in a bag from the hobby shop that got forgotten in the corner as soon as I got home...in the interim, I revisited this truck and did a second survey of the tires.  This was already on my list of projects, but losing my pad only incised me to take a yardstick with me this time to do an even more precise review...

Now I want you to notice how the rims and hubs are three different colors.  To accomplish this with Roco wheels, never mind what you brought up, it would take all evening and all we'd get is a couple tires barely passing the mustard...not good enough, too much fiddly work with a paint brush...and so I set out tackling these wheels...

I get my box today and at first I was feeling like I was disappointed.  The material Shapeways uses comes out semi-clear and it's hard to see any detail on it.  I had a feeling I would need to go back and redesign my file, make the lug nuts bigger, that sort of thing...

And then I let the paint fly...

The inner lugnuts are white because I have not painted the insides yet.  The next one over is a front tire (or rear with only the inner dual mounted) and the third one is a spare rim with no lugnuts at all. I have both rims for inner and outer spare, whereas one side of the rim has a small lip and the presumed hidden side does not, it all depends now the spare tire is mounted to the vehicle which rim I use.  I can also throw these rims out behind a shed if I coat them in rust...

But geez...this took two waves of two spraycans to paint...all done in about 30 seconds tops...try doing that with the same number of Roco rims...

I think I'm going to put all of my spare Roco wheels on notice that they're headed out...It's not that they're bad wheels, but these wheels take literally 5 seconds to painting ALL of them, tires AND rims in not two but three tones!  To do the same with those Roco wheels is just not worth my effort...

I have two things to do, though.  First, the hole for the hub needs to be a little bigger, small fries for a file to ream them out but I hate post production work.  Second, I need to make a rim with hubs already mounted, not because I do not like separate rims and hubs but because it's so easy to add a couple more rows of rims to my trees and this would save me time with the fiddly business involved with hubs.  We'll see how assembly goes.