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i did a FTC

Dylan179

By: Dylan179
New: 07-12-2017 02:14 PM
Updated: 07-12-2017 02:14 PM
Views: 1332 times


i did a FTC

EH its just a base so do with it as you will, i know little about the potential of the neverest motors so i just did a similar ratio to what i know works.

6 neverest 20:1 on the main drive (could be just 4 but i wanted to see how 6 would package) on a 3.25 in wheel for a 3.68 ft/s adjusted top speed

and a neverest 40 on a 3.25 wheel for a 1.84 ft/sec strafe

so there

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07-13-2017 09:56 AM

Billfred


Unread Re: pic: i did a FTC

It's an interesting take, for sure. Not a lot of teams use tube frames, and it's definitely more accessible than many FTC teams probably realize.

Some notes:

1) FTC limits teams to 8 motors, so the 4-motor version is going to be the play for that. (Indeed, part of the reason you see mecanum as much as you do there is because it only needs 4 motors instead of 5.) The nice thing about this setup is that a team could abandon the strafe without too much stress if they needed that fourth motor somewhere else.
2) Good choice using the bare NeveRest motors to achieve the 20:1 reduction in spur gears; the NR20 gearhead isn't quite robust enough for the slamming and banging of drivetrains. What are you using for gears?
3) I love your method of suspending the strafe module. Very easy to tune!



07-13-2017 10:16 AM

marshall


Unread Re: pic: i did a FTC

Quote:
Originally Posted by Billfred View Post
the NR20 gearhead isn't quite robust enough for the slamming and banging of drivetrains.
Is that a hint about an upcoming product?



07-13-2017 09:42 PM

carpedav000


Unread Re: pic: i did a FTC

Hmmmm... how easy would it be to swap the neverest motors for 775pros on VPs? I've been thinking minibots lately



07-13-2017 11:23 PM

Dylan179


Unread Re: pic: i did a FTC

Quote:
Originally Posted by carpedav000 View Post
Hmmmm... how easy would it be to swap the neverest motors for 775pros on VPs? I've been thinking minibots lately
No planetary, they are evil.



07-15-2017 09:55 AM

Ginger Power


Unread Re: pic: i did a FTC

Quote:
Originally Posted by Dylan179 View Post
No planetary, they are evil.
Why do you believe planetary gearboxes are evil?



07-15-2017 10:40 AM

marshall


Unread Re: pic: i did a FTC

Quote:
Originally Posted by Ginger Power View Post
Why do you believe planetary gearboxes are evil?
A planetary gearbox killed his father. He doesn't like to talk about it.



07-15-2017 11:32 AM

Thayer McCollum


Unread Re: pic: i did a FTC

I do not mean to pry, but you don't by any chance happen to have six planet gears in your first stage? My father was slaughtered by a six-geared man. He was a great gearmaker, my father. And when the six-geared man appeared and requested a special gear, my father took the job. He slaved a year before he was done. The six-geared man returned and demanded it, but at one-tenth his promised price. My father refused. Without a word, the six-geared man slashed him through the heart. I loved my father, so, naturally, challenged his murderer to a duel ... I failed ... the six-geared man did leave me alive with the six-geared sword, but he gave me these. (He touches a scar on each cheek) I was eleven years old. When I was strong enough, I dedicated my life to the study of fencing. So the next time we meet, I will not fail. I will go up to the six-geared man and say, "Hello, my name is Inigo Montoya. You killed my father. Prepare to die."

(Oh man, I have too much time on my hands)



07-15-2017 05:52 PM

messer5740


Unread Re: pic: i did a FTC

Suggestion: with H drive we learned this year is to give the center H wheel the ability to be actuated instead of suspended. This gives more traction on the center wheel, allowing it to straife. Without that, it straifeing will be hot or miss, depending on the surface you are on.



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