ENVY

[swanaldo]

i was going to take some weight from the middle of the large gear but will leave plenty round the edge and a good boss. envy tended to flex the chassis when self righting which i dont think helps either. i will put some bars in to stiffen it up a little. i was going to go with bigger wheels and change the drive but it meant i would have had to more work than intended so i will just put on the gears and try with the setup i had. it went well at champs so it will go well again i am sure. notts will tell the tale. if it doesnt work then i will need shoulders to cry on.

[swanaldo]

oh and john if it doesent work i will be probably looking inside beast and taking notes.

[swanaldo]

got new gears this morning. if anything they will definatley do the job

[robotwars]

shane, why dont you use your gears as your wheels, they are Equivalent to Tractor Tyres

John

[swanaldo]

i am actually worried about them running on the floor. no worries tho they are chunky

[craig_anto]

good old HPC :P

[swanaldo]

i have asked to hollow out to half the width of the gear and 15mm from the teeth. i dont think they will bend at that. well i hope not.

[geeza]

Looking at this the new Envy is going to be mega fast. Boschs on 36V 5.7:1, wow. Have you actually calculated the speed of it

[swanaldo]

sorry ed but i have changed to mag c40 motors and i will run them on 24v for realibility. so 4000 ish rpm at 5.7/1 wil give on paper 17.7mph which makes it 1mph slower than at uk champs.

[woody]

8 inch diameter wheels ...

Torque (per motor) to spin wheels 1111.5 oz-in
Amps (per motor) to spin wheels 138.08 Amps
Theoretical Top Speed 16.825 MPH
Total Peak Amps 276.16 Amps
Amp Hours Required - 3 Min 9.6659 AH
Amp Hours Required - 5 Min 16.109 AH