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06-22-2011, 07:31 AM
| #1 |
| RCC Addict Join Date: Nov 2007 Location: in the woods
Posts: 1,915
|  My take on a scale drivetrain (pic heavy)
I have always loved scale builds but being OCD I feel disappointed when I cannot put the detail into a build that I imagine when I conceive the build. That disappointment usually leads to me taking the build and setting it on a shelf or in a box for months if not years. I think my biggest problem is I get overwhelmed by all the detail I want for the entire rig and if it is marketable as a product so that causes the burn but I think I found a fix for me. I started to dedicate time to builds for me. The most fulfilling ( and the best selling ) RC parts I have ever came up with are the ones I made for myself originally. So, here is my scale drivetrain. First I think we need a little background. I first came up with this idea about 5 years ago tinkering in my garage. I had a pile of gears, bearings, and some TLT and TXT axles laying around and thought it would be fun to have a toy that looked and preformed a lot like the real thing. My first attempts were with a drill press, coping saw, a dremal tool, some files, and a good dose of RCC. Here are a couple builds to familiarize yourselves with what I am talking about... The birth of this idea... Scale trans Still have this one...sitting in a box  1:7th Suzuki Samurai trail build Got frustrated with this one and sold it... **2007 Bruiser** Once again, frustrated that the "scale" was not there for me so I sold it... Rock Racer In post #29 of this thread you can see my first attempt at a scale drivetrain. This one also was sold when I became frustrated... F-650 Trail/Hauling Rig Anyway, you get the idea. Now that we have all the ugly past out in the open time to look to the future. This was an attempt at scale from about a month ago. It was compact but looks like a toy gearbox...  That lead to this...  Now that satisfies my scale wants on a couple levels. First, it looks like something out of a 1:1, second, it has the correct amount of gear reduction, and third it is a 2 speed. Here are some shots of how it goes together...  Top row from left to right. tail plate, shifter box, 2 speed box, bell house/actual transmission, bearing plate, and electric motor mount. Bottom row from left to right. Metric hardware, output shaft and gear, shifter gear, trans lower gear, 2 speed parts and some Axial XR10 gears that are in the transmission. Here are some assemble pictures... Shifter box assembly...  With the 2 speed setup and ready to go in the case...  2 speed box bolted to the trans...  All together...  ...and a little pimp'en...  Transmission assembly in my next post  |
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06-22-2011, 07:43 AM
| #2 |
| RCC Addict Join Date: Nov 2007 Location: in the woods
Posts: 1,915
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The Axial XR10 gears are perfect for the main gear reduction due to the reduction that is possible in such a small space and toughness of all metal gears. Add those factors to ease of parts availability and it is a win win situation. Picture of a gutless case...  Gears installed...  Bearing plate installed and ready for the motor...  Motor installed on the motor plate and ready to mate to the trans... Ready to meet the motor...  Motor trans mating in my next post |
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06-22-2011, 08:08 AM
| #3 |
| RCC Addict Join Date: Nov 2007 Location: in the woods
Posts: 1,915
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Another annoying part of my scale builds is the fact you can see an electric motor. I want to see the V8 when I pop the hood or the oil pan when the truck is flexed out so I came up with this...   You can see where the motor plate mates to the block. Now, on to the block. There is a good reason that I actually machined the piston bores in the block. Once the complete assembly is in the truck the electric motor will be locked on a hot box. The biggest killed of electric motors is heat so I wanted to provide a way in which to circulate cool air around the motor. Plus, adds to the cool "scale" factor... A little massaging of the block for air flow...   This should be a sit com, "Motor Meets Trans"    Ready for the heads...  |
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06-22-2011, 08:13 AM
| #4 |
| I wanna be Dave Join Date: Aug 2007 Location: *
Posts: 2,274
|  PayPal standing by... |
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06-22-2011, 08:16 AM
| #5 |
| RCC Addict  Join Date: May 2008 Location: Green Bay
Posts: 1,138
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WHoly shit !!! That is awesome ! I can't wait to see the rest of this. What are the rest of your plans? Are you going to market this?
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06-22-2011, 08:19 AM
| #6 |
| I wanna be Dave Join Date: Nov 2009 Location: Chico now
Posts: 2,384
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WOW!........Awesome! |
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06-22-2011, 08:23 AM
| #7 |
| RCC Addict Join Date: Nov 2007 Location: in the woods
Posts: 1,915
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Now the heads. Not only did I want scale looking heads but I needed them to functional in a way. The air will be brought in via the intake manifold and be vented out the exhaust. Yet again, cool scale factor to me...   On the block...  ...and in this shot you can see through the exhaust ports to the electric motor...  A shot of it sitting between the frame rails of its future home...  That is it for now. I will update this thread once I get the intake and oil pan done. I also need to post about the axles that are in the works and the t-case. Thanks for reading |
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06-22-2011, 11:14 AM
| #8 |
| Rock Crawler Join Date: Jul 2008 Location: E. City
Posts: 883
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06-22-2011, 11:18 AM
| #9 |
| I wanna be Dave Join Date: Sep 2009 Location: n. palm beach
Posts: 4,123
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Thats inf*kinsane, Whats this going to cost? and how much does it weight? BEAUTIFUL. |
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06-22-2011, 11:26 AM
| #10 |
| I wanna be Dave Join Date: May 2007 Location: Fairfield ME
Posts: 3,886
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How many hours of programing time do you figure it has taken to get to this point?
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06-22-2011, 11:44 AM
| #11 | |||
| RCC Addict Join Date: Nov 2007 Location: in the woods
Posts: 1,915
| Quote:
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06-22-2011, 12:34 PM
| #12 |
| 20K Club   Join Date: Jul 2004 Location: Sending illegals home one Hayabusa at a time.
Posts: 22,981
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You've been talking about this for years! I love that you finally sat your ass down and did it. Can't wait to see the end.
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06-22-2011, 12:53 PM
| #13 | |
| RCC Addict Join Date: Nov 2007 Location: in the woods
Posts: 1,915
| Quote:
 But ya, it is about 4 years late | |
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06-22-2011, 01:23 PM
| #14 | |
| 20K Club Join Date: Jul 2004 Location: Sending illegals home one Hayabusa at a time.
Posts: 22,981
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06-22-2011, 02:12 PM
| #15 | |
| RCC Addict Join Date: Nov 2007 Location: in the woods
Posts: 1,915
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06-22-2011, 02:22 PM
| #16 |
| R.I.P. Chip  Join Date: Jan 2004 Location: The Crawler State
Posts: 13,938
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Wow, awesome!
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06-22-2011, 02:34 PM
| #17 |
| Rock Crawler Join Date: Jun 2010 Location: KCRC
Posts: 774
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very very nice.......good things come to those that wait!!
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06-22-2011, 02:36 PM
| #18 | |
| RCC Addict Join Date: Nov 2007 Location: in the woods
Posts: 1,915
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06-22-2011, 02:52 PM
| #19 |
| Rock Crawler Join Date: Nov 2004 Location: in a basement in Kalispell, MT
Posts: 857
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Crazy Always wanted to build something like that, but never had the time, knowledge, machinery or money.Now rig up a small electric fan to look like a centrifugal supercharger to cool it. |
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06-22-2011, 02:58 PM
| #20 | |
| RCC Addict Join Date: Nov 2007 Location: in the woods
Posts: 1,915
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Linear Mode
