Featherweight build

[ACEGUY]

I've decided to throw my hat in the featherweight ring, and was wondering if anyone could recommend a good ESC? The plan is to just build a simple two wheel wedge.

I plan on running E30-400 motors.

[Roboteernat]

There is the featherTwo by Shakey, but there are programmable ones including hobbywing escs and the good ol TZ85A. Sadly the TZs are discontinued.

[Triceratop]

Hi all, I am also starting my first build Featherweight, can anyone recommend drive motor size please? Looking at two axles with one motor to each. Also what sort of min speed should I be considering for the robot in the arena?
Many thanks

[Ocracoke]

Drill motors are a good place to start since they come with the gearbox already attached. There are alternatives, such as the Gimson 13.7:1 motors I use in The Honey Badger robots, which are based around the "775" motors, gives decent speed and power for the size.

[ACEGUY]

Would these batteries work?
https://hobbyking.com/en_us/zippy-co...pack-xt90.html

I'm building a simple wedge and would also like to know if these are ok, would one do it or should I run two or more?

[shakesc]

yes but if you are running drill motors about half that capacity would do you fine

[ACEGUY]

yes but if you are running drill motors about half that capacity would do you fine

My plan is to run Ampflow E30-400's.

[Anttazz]

Those are way too big for a FW

[Maxamuslead]

Those are way too big for a FW

for drive they are pushing it for brushed motors, for weapon there is no such thing XD

[Roboteernat]

assuming your wanting to run these motors for drive - 2 axles, then thats 5.4kg with just the motors not to mention gearboxes

[Triceratop]

Hi, found some 24v 30w DC motors, would these be competitive enough for a FW drive (one to each axle - 2no. axles)?

[Roboteernat]

potentially, but what is their weight and you will also need to consider the gearing.
The google search i did shows they are a bit larger than normal drive motors, but this is not specifically your 24v 30w motors

[Triceratop]

They run at stated '24v @ 6000rpm full speed', I was going to run them on 12v (3000rpm potential) with direct drive to the wheel (130mm dia). The acceleration can be set on the handset. If it comes to it I have room for a gearbox. Going for 24v so I can upgrade later if I feel it necessary
Any thoughts???

[Ocracoke]

I would seriously recommend a gearbox (even a simple single stage reduction) to make the machine more drivable - typically planetary gearboxes are used in the FW class. Have a read through the build diaries here to see what folks are using.

[Triceratop]

Thanks Michael, what output shaft speed would you recommend? There are some 75w 12v & 24v motors with reduction gearboxes, giving very high torque, but the output shaft rpm is only 470. Feels a little slow, again any thoughts?