42121 Heavy-Duty Excavator Full RC MOD

[Seo-onDaddy]

I converted the 42121 Heavy Duty Excavator to a RC version that can be driven and moved.

 

 

 

* Instructions are being distributed by Recrickable.

https://rebrickable.com/mocs/MOC-69683/Seo-onDaddy/42121-heavy-duty-excavator-full-rc-mod/#details

 

 

* A 4-port receiver such as 'MOULDKING' receiver or, 'CaDA' receiver or 'Buwizz' is required, and case separation is required.

'MOULDKING' receivers do not require any work other than case separation.

The 'CaDA' receiver or 'Buwizz' must be removed from the case and the battery must be replaced in a small size.

Battery size should be less than 14mm x 25mm x 50mm.

 

 

 

* I modified some parts of the exterior because the space was cramped.

* fixed the range of operation of the arm operation.

 

 

 

 

 

 

 

[AFOLegofan66]

Very interesting mod!

[iLego]

Great mod !!

And thank you so much for all the interesting details in the presentation !

[Gray Gear]

Looks like an interesting MOD, and very compact! The only function not RC is turntable turning. But I guess that's alright, a 5th motor would't fit anyways, and the battery box only has 4 ports. 

[Scoar Sonander]

Great MOD, but, as the purist I am, I would rather have PF motors. But that doesn't mean that you shouldn't congratulate yourself!