Chariots of Fire Posted July 23, 2012 Share Posted July 23, 2012 (edited) Getting away from the fire apparatus for a bit. Jeff Harper and I are doing a "consulting joint project" to model two Mack AP's that were used in the constsruction of Boulder Dam in the early 1930's. The AP rock dumps were the beginning of off road heavy haulers. Later in the construction process the dump bodies were removed from some and were refitted with cement mixers. We are making the same chassis for both rigs starting with the Monogram Mack AC kit for frame, axles and rear wheels. From there in it's a lot of scratch building. Certain parts are being duplicated by molding and casting such as the front fenders, rear tires and headlights. The chain drives of the AC have been exchanged for delrin operating chain and sprockets. Front wheels are from the Ertl R Model Mack. Here is the progress so far. Jeff informs me that his rig is coming along with much the same work having been accomplished. Edited October 4, 2012 by Chariots of Fire Quote Link to comment Share on other sites More sharing options...
Casey Posted July 23, 2012 Share Posted July 23, 2012 Very cool build idea. I was wondering what the huge gears were for, then I clicked on the next picture and saw they were not gears, but rather interlocking(?) rear tires. Looks like you made a lot of progress on the dump bed so far. Quote Link to comment Share on other sites More sharing options...
Bennyg Posted July 23, 2012 Share Posted July 23, 2012 Sweet! I love Mack trucks. Can't wait to see more. Cheers Ben Quote Link to comment Share on other sites More sharing options...
mackinac359 Posted July 23, 2012 Share Posted July 23, 2012 Always amazing builds! Tim Quote Link to comment Share on other sites More sharing options...
Turbo590 Posted July 23, 2012 Share Posted July 23, 2012 Charlie...you'll do "her" justice Can't wait to see it....Kurt You'll have to have Jeff, post some progress pictures as well. Quote Link to comment Share on other sites More sharing options...
Danno Posted July 23, 2012 Share Posted July 23, 2012 Fantastic! Quote Link to comment Share on other sites More sharing options...
Agent G Posted July 24, 2012 Share Posted July 24, 2012 Living 30 minutes from the dam, I've come to appreciate just what it took to build the beast. Excellent job on an iconic truck. G Quote Link to comment Share on other sites More sharing options...
Madd Trucker Posted July 24, 2012 Share Posted July 24, 2012 (edited) Compared it to pics I have of that truck looks good and spot on Edited July 24, 2012 by Madd Trucker Quote Link to comment Share on other sites More sharing options...
Chariots of Fire Posted July 24, 2012 Author Share Posted July 24, 2012 While Jeff is using the chassis i'm working on to duplicate some details I've been working on the rock dump body. It's amazing how some flimsy plastic can become so strong when you follow the way they built the body from steel. IT IS SOLID! Will have some pics shortly. Quote Link to comment Share on other sites More sharing options...
MachinistMark Posted July 24, 2012 Share Posted July 24, 2012 way cool. Quote Link to comment Share on other sites More sharing options...
jacobus Posted July 25, 2012 Share Posted July 25, 2012 great building going back in time very nice Quote Link to comment Share on other sites More sharing options...
cargostar Posted July 25, 2012 Share Posted July 25, 2012 Is that chain from Grandt Line? Quote Link to comment Share on other sites More sharing options...
mnwildpunk Posted July 25, 2012 Share Posted July 25, 2012 Amazing build you have going on! I'll be watching Quote Link to comment Share on other sites More sharing options...
Chariots of Fire Posted July 25, 2012 Author Share Posted July 25, 2012 Is that chain from Grandt Line? It could be but the supplier we got it from just has it to sell. Where he acquired it from I am not sure. It could be the same as what Micro-mark has in its catalog. Quote Link to comment Share on other sites More sharing options...
Chariots of Fire Posted July 29, 2012 Author Share Posted July 29, 2012 Here are some pics of the Mack AP chassis with the body in place. These trucks worked in a pretty hot environment so they did not use sides to the hood. Instead they used a heavy duty wire mesh just to keep debris away from the engine and to allow for additional cooling. Next thing is the protective shield for the upper front of the body that kept rocks from falling on the driver's head! Quote Link to comment Share on other sites More sharing options...
lapazleo Posted July 29, 2012 Share Posted July 29, 2012 Cool! Quote Link to comment Share on other sites More sharing options...
mackinac359 Posted July 29, 2012 Share Posted July 29, 2012 No words to describe.. Tim Quote Link to comment Share on other sites More sharing options...
Chariots of Fire Posted July 31, 2012 Author Share Posted July 31, 2012 Just another shot of the body with a bit more detail added. It's now pinned to the frame. Quote Link to comment Share on other sites More sharing options...
Tony Bryan Posted July 31, 2012 Share Posted July 31, 2012 That is some fine scratch building you are doing Quote Link to comment Share on other sites More sharing options...
Chariots of Fire Posted July 31, 2012 Author Share Posted July 31, 2012 Thanks for all of the kind comments, guys. I'll be posting as we make more progress on the builds. Quote Link to comment Share on other sites More sharing options...
BigBad Posted July 31, 2012 Share Posted July 31, 2012 Nice ol' truck, great scratch building, this is a rare sight, even here! Quote Link to comment Share on other sites More sharing options...
Aaronw Posted August 1, 2012 Share Posted August 1, 2012 Neat truck, this should be good to watch. What did you use for the front tires? They look like a good possibility for a long stalled Mack AC rescue I have. My Dad's step father helped build Hoover / Boulder dam and later the Shasta dam. Quote Link to comment Share on other sites More sharing options...
Chariots of Fire Posted August 1, 2012 Author Share Posted August 1, 2012 The front tires are from a previous scratch project, Aaron. I made up a master and then had Tom Coolidge of Denver, CO cast them for me. The wheels are straight from the Mack R kit. Quote Link to comment Share on other sites More sharing options...
Joker Posted August 2, 2012 Share Posted August 2, 2012 EPIC ! ! ! Quote Link to comment Share on other sites More sharing options...
Gluhead Posted August 2, 2012 Share Posted August 2, 2012 I really dig this. Great subject and scratching. Quote Link to comment Share on other sites More sharing options...
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