Chevy Test Drive

i mounted a servo on the chassis and tested crawling

looks good so far

 

 

how to mount a servo on the chassis

 

i had the y-harness's shorter than before

 

i'm planning to cut off the fenders like this

 

 

 

finished the chassis & made tires narrow

i finished the chassis

u-bolts & more leaf springs give less wheel travel tho, i like the chassis

however those tires are not that soft. the compound is rubbery though not soft enough. so i made the tires of tamiya 4x4 mini truck narrow. these are pretty soft

the picture below shows 5 kinds of tires, it is just my opinion tho.

 

let me show how to make tires narrow

new tires and the chassis

these are soft enough, when i press the chassis, the tires look pressed. good =)

 

making u-bolt

i bought a 1.4 metric die(M1.4 0.3mm pitch) to make u-bolts.

i like it. it's easy to make u-bolts

i used 1.5mm brass round stick

 

the test of 100:1 geared motor & drive shaft

i like 100:1 geared motors. they're like snails tho, have more torque
finished a flexible drive shaft. it's better than solid one. no more clicking while it's working

 

the motor test...

they're too fast...

i ordered geared motors(gear ratio 100:1) anyway...

 

building a gearbox

working on the gearbox

made a paper mockup before building a brass gearbox

im gonna use two geared motors for this project, bcuz the chevy weighs more than my h1 and the raito of the motors is 30:1. it needs more power, maybe i should've used lower speed motors to get torque though, i want speedy motors as well. i'll try these first. wth :D

 

i cut off the ends of the bolts for mounting shackles to make them shorter. they were kinda long before

 

i've got bolts to mount these geared motors. it was hard to get them, bcuz the size is not regular

i mounted the motors successfully anyways