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JLiu15

[WIP] Red Beryl T (Trophy Truck) (Cancelled)

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Another RC motor MOC I am working on. This time the RC motors will be configured differently - they are located in the chassis, placed in a cross configuration so that their inner outputs are lined up. There is a 2-speed remote controlled gearbox at the heart of the chassis along with the RC motors and there will be full long-travel suspension. The front suspension module is already complete, and it will be attached at an angle for positive caster. There will still be some gearing down in the rear suspended portion (e.g. with portal hubs) to ensure the model has sufficient torque.

As the name might suggest, this is the third model in my Red Beryl series (not sure why I chose that name, honestly :laugh:). It'll be a typical trophy truck with either a fully red body or red with black detailing. I've always wanted to use my older-generation Technic panels from the 8436 set, sorta combining two generations of Lego Technic. Like a typical trophy truck, there will be one or two spare wheels in the back.

Like my previous MOC, it will all be controlled by BuWizz.

Photo:

WIP Red Beryl T - 1

 

Edited by JLiu15

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UPDATE 12/23/20

The majority of the chassis is now complete. I still need to make the rear axle, which will of course have soft suspension with long travel. The front axle is now joined with the heart of the chassis - I actually ended up installing it "backwards" as otherwise the servo motor would take up too much chassis space and make it longer. The front axle is installed at an angle for positive caster, and it'll be interesting to see how it does performance-wise.

I am building the model digitally in stud.io as I go, so it's likely there will be instructions for this model in the end.

If you have any suggestions for me, please let me know.

Photo:

WIP Red Beryl T - 2

 

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UPDATE 12/24/20

I've decided to cancel this MOC. I've got a lot of projects in mind that I'm looking forward to build in 2021, and unfortunately I've quickly lost interest in continuing this build after it became apparent it was gonna be harder than expected. I wanted this to be a simple build, which reveals another problem - it is essentially just my previous MOC in a different body. The functions are all pretty similar save for the gearbox - in fact, the RC motors are geared nearly identically in 2nd gear. Another issue is the wheels - I've designed it with tractor tires in mind, as I have plenty of those so I could install a spare wheel or two in the back - a pretty common feature on trophy trucks. Unfortunately, I've realized the tractor tires are simply too unrealistic for trophy trucks, as most trophy trucks I've seen have flat profile tires.

I am keeping the stud.io file and the instructions I have made so far though, in case I ever want to use this design in a future MOC.

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