RC India

RC Models => Cars => Topic started by: Shashank9230 on December 28, 2016, 10:02:57 PM

Title: shashank's 1/8 monster crawler
Post by: Shashank9230 on December 28, 2016, 10:02:57 PM
Hello friend, i made a 4wd car with lots of metal parts and stuff. Which i would like to share with you.
After all gearing i took a trial but that motor which i used is bosch drill  gear motor, which didnt take its load due to weight. Please share your thoughts nd suggestion.

Pic i put is
17 mm slotted bolt for standard 1/8 scale truck
4 drive shaft with telescope features.
Front and rear arm
And last pic of
4 suspension.
Title: Re: Made 1/8 true 4wd Monster,
Post by: Shashank9230 on December 28, 2016, 10:14:28 PM
Made from as much as cheap and easily available parts
Title: Re: Made 1/8 true 4wd Monster,
Post by: Shashank9230 on December 28, 2016, 10:35:39 PM
Whole scale
Title: Re: Made 1/8 true 4wd Monster,
Post by: Shashank9230 on December 28, 2016, 10:37:27 PM
Wheel attached with self slotted bolt
Title: Re: Made 1/8 true 4wd Monster,
Post by: saikat on December 29, 2016, 05:43:15 AM
very nice,

the two rear wheels rotate at the same rpm or have differential gearing ?

try mounting the motor at 90deg to the wheel axle - you might need a crown / bevel pinion
arrangement. this will give you a neater fit in the chassis.

as for taking the load - it looks that you have already geared it down quite a bit . try using a larger
motor

what is the effective output gear ratio ??
Title: Re: Made 1/8 true 4wd Monster,
Post by: Shashank9230 on December 29, 2016, 08:05:20 AM
Thank you.

And i make this for crawler purpuse so all 4 wheel are locked. And there is single direct locked output shaft in it.

Actually i can no fit motor to whells 90deg. Bcz i used  drill motor and its bit long so its very difficult to do that.

Yes, for crawler purpuse i gear down a drill motor for taking load. I am going to try what happend as it can take load or not.

That drill motor has 2 speed so after that i make gearbox to reduce its speed to torque which is 20:1.

Title: Re: Made 1/8 true 4wd Monster,
Post by: Shashank9230 on December 29, 2016, 08:12:54 AM
Some more pic
Title: Re: shashank's 1/8 monster crawler
Post by: HVP on December 29, 2016, 11:02:57 PM
Looks good Shashank. I suggest you get bigger motors. You will need a lot of torque. 550 size motor wont be able to pull the weight.
Title: Re: shashank's 1/8 monster crawler
Post by: Shashank9230 on December 29, 2016, 11:47:01 PM
Yes, completely  agree HVP  sir. Even that motor i tried which cant pull wheel^s load so i am trying to resolve big gear box.

Can anyone have suggest me a bigger enough motor to bare this load.
Title: Re: shashank's 1/8 monster crawler
Post by: Shashank9230 on December 30, 2016, 09:52:36 PM
Allmost final