Car version 1: Mini z buggy 1:27

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Overview

The base model is a Kyosho Mini-z Racer MR-03 running on 4x1.5V AA batteries in series giving us a nominal voltage of around 6V.

Top speed is ~6m/sec, the wheel diameter is around 36,55mm

Specifications: Length: 163 mm * Width: 105 mm, height: 46 mm; trace (v) *: 86.5 mm; trace (h) *: 88.5 mm * Wheelbase: 114.5 mm; Tires (v / h): Ø34, 7x16 mm Motor: 130s, Chassis Type: MB-010

Drive motor

https://www.brack.ch/kyosho-motor-mini-z-x-speed-v-awd-asf-1036159

Speed

Wheel diameter is 36,55mm

LCR measurements

The motor has resistance around 0.988 Ohm and a inductance around 172uH

Steering motor

This is DC motor with an internal winding resistance of around x Ohm

At a PWM of 1kHz we see a max current of around 780mA this is measured with a scope using the Iout signal from the buck/boost converter. Note that the max current for the steering motor driver has been set to 800mA.

LCR measurements

The motor has resistance around 4.559 Ohm and a inductance around 30.37uH

Position feedback

This is a potentiometer connected to 3.3V with a overall resistance of 4.3 kOhm and a working range of 3.3 kOhm to 1.6 kOhm

Spare parts

Complete car

https://www.galaxus.ch/de/s5/product/kyosho-mini-z-inferno-mp9-rtr-ready-to-run-rc-auto-12569624?gclid=CjwKCAjwyaWZBhBGEiwACslQox1-XzDxL9TKjm8uRx_7Uap2K9tEk9Hd9PTEryIgi8xFf8AQYjyjNhoCOJwQAvD_BwE&gclsrc=aw.ds

https://www.hobbyshop.ch/mini-z-mb010-4wd-1-24-inferno-mp9-tki3-rtr-k.32091wbk.html

https://www.brack.ch/kyosho-mini-z-buggy-inferno-mp9-emerald-green-black-rtr-1015365?utm_source=google&utm_medium=cpc&utm_campaign=!cc-pssh!l-d!e-g!t-pla!k1-bh!z-baumarkt_hobby_smart_marge_low&utm_term=&adgroup_id=114444033081&ad_type=&prod_id=1015365&campaign_id=11301885839&gclid=Cj0KCQiA-K2MBhC-ARIsAMtLKRtA04iBJbTsdeAX2YEK0Bx6wK6_UXq_C2sikXKDUK3oCO71T85_ZxwaAmIUEALw_wcB&hc_fcv=YYzJ5QKYlYxhtFbl~MMn8tPc16rfF6-9Rzzzzzzzz~Lr5QCUo0KyV5M--jzzzzzzzz

Drive motor

https://www.hobbyshop.ch/x-speed-v-motor-mini-z-buggy-kymdw023-k.mdw023.html

Steering

Gear set: https://www.hobbyshop.ch/servo-gear-set-kymb010-k.mb010.html http://www.rcparts.eu/kyosho-mb010-mini-z-buggy-servo-gear-set.html

Screws and nut set

https://www.hobbyshop.ch/schrauben-set-kymb021-k.mb021.html

Diff: https://rc.kyosho.com/en/mb020.html

Upgrades

The bellow upgrades has been implemented on the buggy's (all the buggys may not have gotten all the upgrades)

• Steering Knuckle Arm

• Aluminum Motor Holder

• Aluminum Steering Plate

• Aluminum Servo Saver

• Nylon wheel nuts

• Universal Swing Shaft