Lego Technic 42077 Buggy B-model Power Functions building instructions

Building instructions for the 42077 B model buggy RC mod with Power Functions L motors. You will need the original building instructions for the B model from Lego.

Where you see “Original steps x-y” please follow the original instructions. Click on the little arrow to expand each section for the instruction images.

Some steps are alternatives of each other. Please choose one of them to build, e.g. “AAA battery box / rechargeable battery box” or “AA battery box”.

Components and options for this mod:

– driven by 2 Power Functions L motors
– steering by Power Functions Servo motor
– Battery options – AAA/rechargeable/AA battery box
– Remote options – IR remote/SBrick

The RC mod uses mostly parts from the original 42077 set. Extra parts needed:

1 Technic Gear 16 Tooth Reinforced (94925) – http://ebay.to/2n7933W — http://amzn.to/2DEeL7p
3 Technic Gear 20 Tooth Double Bevel (18575) – http://ebay.to/2n6T2uI — http://amzn.to/2DDriIj
2 Power Functions Large motors – http://ebay.to/2wF3Kgc — http://amzn.to/2zlJtxD
1 Power Functions Servo motor – http://ebay.to/2x89pP0 — http://amzn.to/2ApqzGf

Power Functions AAA battery box – http://ebay.to/2xjTbBV — http://amzn.to/2zmZAuS
Power Functions rechargeable battery box – http://ebay.to/2xkDw53 —  http://amzn.to/2zBunqJ
Power Functions AA battery box – http://ebay.to/2Ge5Bx4 —  http://amzn.to/2E4vRJu

Power functions IR receiver – http://ebay.to/2y5KkRV — http://amzn.to/2y7WDgd
& IR remote – http://ebay.to/2n72iyN — http://amzn.to/2F9txAi
Sbrick – http://ebay.to/2eDtXUu — http://amzn.to/2AnwHyN
& Power Functions Extension Wire [20cm] (60656) –http://ebay.to/2DA2cuB

Disclaimer – if you make a purchase of the parts/sets listed above on Ebay or Amazon then you’ll also contribute to my future Lego projects.

Instructions:

Original steps 1-16

Steps replacing 17-20
42077 B PF 001
« 1 of 33 »

Original steps 21-43

Steps replacing 44
42077 B PF 034
« 1 of 12 »

Original steps 45-49

Steps replacing 50-80 - IR receiver can be replaced with SBrick + extension cable
42077 B PF 046
« 1 of 64 »

Original steps 81-106

Steps replacing 107
42077 B PF 109
« 1 of 13 »

Original steps 108-119

Steps replacing 120-142
42077 B PF 122
« 1 of 36 »

Original steps 143-157

Steps replacing 158
42077 B PF 158
« 1 of 4 »

Original steps 159-164

Steps replacing 165-166
42077 B PF 162
« 1 of 2 »

Original steps 167-168

Steps replacing 169
42077 B PF 164
« 1 of 3 »

Original steps 170-207

Steps replacing 208-210
42077 B PF 167
« 1 of 8 »

Original steps 211-235

Step 236 - AAA battery box or rechargeable battery box
42077 B PF 175
« 1 of 35 »
or
Step 236 - AA battery box
42077 B PF 210
« 1 of 14 »

 

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