Junkyard Monster SMT10 Build

MorrisMade

New member
Part 1. In the beginning.
Here is my SMT10 build that I started in March of 2019. Since I waited too long to get an original one, and Axial discontinuing them for a short time, I ended up buying a cage on ebay from Hong Kong and used my leftover Wraith running gear. For the remaining parts I sourced them from various marketplaces and rpphobby.com. I'm gonna be going over the whole build in several posts in order to keep the amount of pix down per each post. I'll post a completed parts list at the end.
Follow along.

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I ended up swapping out the stock Wraith shocks for some old HPI Racing shocks I ran on my Wheely King years ago.
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I picked up some engine parts from Shapeways, flipped the battery tray, and mounted the engine on the opposite side so that it would sit more true to the full size monsters.
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After getting the truck to this point, it would spend the next several months in a plastic tub while we finished renovating our house and moving to Texas.
 
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MorrisMade

New member
Part 2. The big move.
After moving to Texas, and getting things setup, I finally found time in early 2020 to get back to building.
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Once the Team Associated Trophy Rat body was trimmed, and the rest of the electronics mounted, I did some moderate "testing" of how everything was going to work out.
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After mockup testing was completed, it was time to tear the truck back down and give it a dip.
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While the truck was enjoying a relaxing soak in the Rit sauna, I got to work on painting and weathering up the headers, engine parts, radiator, and fuel cell.
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MorrisMade

New member
Part 3. True colors.
After the first round of dying the chassis, I wasn't too pleased with the results, so the truck got a second dip in the Rit sauna. Once that was finished it was time to start assembling everything again.
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I ended up making some braided fuel line and radiator hoses out of some small parachord and heat shrink. The fuel line helps hide the receiver antenna coming out of the fuel cell.
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The fuel cell is an old Pro-Line accessory I picked up when building my Wraith kit in 2013, but never ended up using. I drilled a hole in the bottom corner to pass all the leads through and used some leftover scale hardware to keep the lid in place.
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A shot of the engine and radiator in place.

After getting all the interior pieces in place, it was time to start on painting the body.
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While getting the body ready I also gave a little attention to the wheels and beadlock rings.
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Got the headlights mocked in.
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The body got a couple coats of silver on the inside.
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Finishing up the beadlock rings.
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Testing out the headlights after putting the red primer on the outside of the body.
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After the primer I used the Modern Masters rust paint kit and added some rust to the body.
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After letting the paint oxidize for a while, it was time to move on to the next phase of painting.
 
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MorrisMade

New member
Part 4. The painting post.
Once the rust had time to fully oxidize, I covered the body in some flat clear and started the next step.
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First, the truck got its daily recommended sodium intake.

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Followed by a couple light coats of Tamiya Corsa Grey, which is more of a light sky blue.

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After that was dry it was time to remove all of the sodium.

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A quick test fit on the chassis.

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Followed by another healthy dose of sodium and a couple more coats of Corsa Grey.

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Once the paint had dried, it was on to sanding, scraping, adding panel line details, and a light coat of flat clear.

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Following that came the initial weathering. Some rust streaking, paint fading, and a little chipping.

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After a couple more light coats of flat clear to seal in the weathering, I added the door logos and weathered those in.
 

davids4130

New member
Looks great! Good to see the smt10 get some love. I’m starting to really appreciate our RTR SMT10 after replacing electronics and the driveshafts made out of licorice.
 

MorrisMade

New member
Part 5. Making changes.
Had some axle tubes show up from RH Designs.
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Decided to swap to the orange Wheely King springs to give the truck a softer setup. Also got the Junkyard Monster decal printed and applied to the tailgate.

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After adding a few more decals, and giving the headlight leds a tint of yellow, I put the final coat of flat clear on the body.

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Around late April 2020 I got the RH Designs wheelie bar installed on the truck. Phase one of the build was pretty much completed, and the truck would go on the back burner for a bit while I took care of some projects around the house.
 
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MorrisMade

New member
Looks great! Good to see the smt10 get some love. I’m starting to really appreciate our RTR SMT10 after replacing electronics and the driveshafts made out of licorice.
Thanks man! I wanted one since their first release, but couldn't get one worked into the budget until after they'd been discontinued. Then while I'm in the long process of piecing this one together they decided to bring them back. 🤷🏻‍♂️
 

MorrisMade

New member
Part 6. Snow in Texas.
After April 2020 the truck laid dormant. That is until, in February of 2021, we got over 4" of snow. I decided to get it out for some fun.
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Unfortunately, during this romp in the snow, I ended up finally melting down the Reedy 15t brushed motor that I'd been running in the truck since about midway through the build on a 3s lipo.

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Fortunately, I had an old Traxxas Velineon 3500kv brushless motor on standby that I'd also been testing in the truck on 3s, which produced surprising results. So, I bolted the 3500kv in and decided to run the truck on 2s.

Here's the video of the fun in the snow.
 
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MorrisMade

New member
Part 7. More changes.
After the snow in late February, I didn't work on the truck again until April. I wasn't a fan from the beginning of the single coilovers in each corner. I wanted a more true to form look. I ended up ordering a set of RCLions 110mm internal spring shocks from the Bezos Speedy Delivery Emporium, and got them mounted up.

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Much better, but I thought they could use more pieces of flair.

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Now that's more like it. I cut some strips of leftover chrome vinyl and wrapped them around the top and bottom of the shocks, simulating the gas shocks they usually run on the full size counterparts.

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I also updated the body mounts by adding an additional set in the back, and shaving down the front mounts to accept screws. After that I painted the sway bars and wheelie bar.
 

davids4130

New member
Part 6. Snow in Texas.
After April 2020 the truck laid dormant. That is until, in February of 2021, we got over 4" of snow. I decided to get it out for some fun.
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Unfortunately, during this romp in the snow, I ended up finally melting down the Reedy 15t brushed motor that I'd been running in the truck since about midway through the build on a 3s lipo.

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Fortunately, I had an old Traxxas Velineon 3500kv brushless motor on standby that I'd also been testing in the truck on 3s, which produced surprising results. So, I bolted the 3500kv in and decided to run the truck on 2s.
Nice. I’m running ours (The kid and I) on 2s with Maclan 4000kv 4-pole motor and it’s plenty fast even with conservative gearing.
 

MorrisMade

New member
Part 8. Now a word from our sponsors.
In early May I worked on getting the sponsor panels finished up. I cut them from some 0.4mm lexan, put a couple coats of Tamiya Smoke on the back, and threw on some decals from MCI Racing, The Monster Blog, and some old decal sheets I had.

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I even threw some BKT logos on the tires that I cut from some white vinyl.

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I also managed to get the RII light from Hetmanski Hobbies on Shapeways finished up and installed. I used a piece of lexan that I sanded and a few heavy coats of Stoplight Red as a lens/diffuser. I have the MyTrickRC SQ-1 controller setup so that when the truck is just sitting, or after the engine sound shuts off after idling for more than 10s, the headlights shut off and the RII light goes from steady on to flashing.
 
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MorrisMade

New member
Part 9. Things are getting bumpy.
Next up on the list of add-ons, bump stops.

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I made some simple bump stops out of a couple different parts. I used the rubber stops that come on the Ryft, cut them in half, and glued a stainless steel washer to either side. Wanted to replicate the bump stops that the full scale monsters use.
 

MorrisMade

New member
Part 10. This is exhausting.
The next update part came in the form of some new headers from Mod19RC on Shapeways.

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After painting and weathering the new headers, I moved a couple sponsor decals around and mounted them up. These are the more modern headers like the full size monsters run.

The coolest part of these new headers is the fact that they house a 3mm led that is controlled by the SQ-1 to simulate backfiring, and when matched with the custom sound file from the ESS-ONE, make this thing really come alive.
 

RexRacer19

Let me 3D print that...
Awesome! I watched this build come together over time in the SMT10 group. Your dedication to it shows with all the details added. Also, love the level of detail you did on the headers, and adding the ESS-One with them works perfectly.
 

MorrisMade

New member
Awesome! I watched this build come together over time in the SMT10 group. Your dedication to it shows with all the details added. Also, love the level of detail you did on the headers, and adding the ESS-One with them works perfectly.
Thanks man! I stumbled upon them on Shapeways and had to have them. Then with a quick Google search I found you made and used them on your Impending Doom build. I just wish I would've found them when I started the build. 👍
 

MorrisMade

New member
Part 11. Is this the end?
With the headers being one of the final parts to go on, I could finally call this build finished, for now, after 2 long years. I give you, The Junkyard Monster.

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Even though the truck is what I would consider complete, like any rc project, it's never really finished. I've still got more plans for this truck in the near future. I want to eventually add rear steering and update the 4 links. I'll keep posting updates to this thread, so stay tuned and thanks for stopping by. 👍

Parts list:
Discontinued Axial 1st gen SMT10 chassis from China
Wraith AR60 axles and suspension links
Team Associated Trophy Rat body
JCONCEPTS Tribute wheels, JCT tires, and rings
RH Designs wheelie bar, sway bars, axle tubes
SCMT front sway bar relocation plates
Team KNK 90mm limit straps
RCLions 110mm internal spring shocks
Axial SCX10 II builders kit transmission
Castle Creations Sidewinder 3
Traxxas Velineon 3500kv brushless motor
MyTrickRC SQ-1 light controller
Sense Hobby ESS-One sound unit
Mod19RC 3d printed backfire headers(Shapeways)
3d printed engine block(Shapeways)
Pro-Line Racing fuel cell
3d printed RII light(Shapeways)
Axial Exo Terra radiator
 

dagabba

Supporting Member
Wow, such a cool truck!

Great work on the build, very clever electroniccie thingbobs too!
 
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