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Unread 03-02-2017, 21:45
007agentHP 007agentHP is offline
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pic: Team 5624 Steamworks Robot Teaser

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Unread 03-02-2017, 21:47
StrMNX StrMNX is offline
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Re: pic: Team 5624 Steamworks Robot Teaser

A great looking robot. Although i'm curious, whats the speed/gearing of that drive train?
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Unread 03-02-2017, 21:54
007agentHP 007agentHP is offline
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Re: pic: Team 5624 Steamworks Robot Teaser

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Originally Posted by StrMNX View Post
A great looking robot. Although i'm curious, whats the speed/gearing of that drive train?
It is geared for 11 ft/s.
WCP SS gearbox with 44:30 reduction and 14t pinion gears
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Unread 03-02-2017, 21:56
WTFogland WTFogland is offline
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Re: pic: Team 5624 Steamworks Robot Teaser

How are you properly going to use the NavX as it is mounted on the side of your robot?
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Unread 03-02-2017, 21:57
ollien ollien is offline
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Re: pic: Team 5624 Steamworks Robot Teaser

Why do you have shaft collars on your drive shafts? You're using thunderhex. Just tap it for 1/4-20 and use a washer + bolt to retain the wheel.

Or is this a conscious design decision I'm missing?
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Unread 03-02-2017, 21:57
ollien ollien is offline
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Re: pic: Team 5624 Steamworks Robot Teaser

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Originally Posted by WTFogland View Post
How are you properly going to use the NavX as it is mounted on the side of your robot?
This is completely possible.

http://www.pdocs.kauailabs.com/navx-...ion/omnimount/
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Unread 03-02-2017, 22:29
Lil' Lavery Lil' Lavery is offline
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Re: pic: Team 5624 Steamworks Robot Teaser

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Originally Posted by ollien View Post
Why do you have shaft collars on your drive shafts? You're using thunderhex. Just tap it for 1/4-20 and use a washer + bolt to retain the wheel.

Or is this a conscious design decision I'm missing?
If you have the space on the end of the shaft for a shaft collar, there's really no downside to using BOTH a shaft collar and a tapped 1/4-20. Extra security.
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Unread 03-02-2017, 22:37
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Re: pic: Team 5624 Steamworks Robot Teaser

I'll be that guy:

I assume you have a plan to have your side bumpers properly supported per R31, and it just isn't visible yet? Front/back look to be OK, if the bumpers will fit within the volume.

*Disclaimer: This is CD in Week 4 of Build Season, not your first event, so any rules concerns and/or rulings are based on what is presented here, not the inspection at said first event. There is zero chance that "But CD said it was OK" will get you through inspection.
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Unread 03-02-2017, 23:02
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Re: pic: Team 5624 Steamworks Robot Teaser

As long as that 1X1 tube running front to back is 7 inches or lower and that is backing the bumper it could work, I'm guessing the lower edge is at 6 inches. I will recommend bringing some support closer to your wheels either way.

You climber is interesting, it is the first one I've seen in awhile that I think has a chance of actually pressing the touch pad.
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Unread 03-02-2017, 23:49
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Re: pic: Team 5624 Steamworks Robot Teaser

Quote:
Originally Posted by EricH View Post
I'll be that guy:

I assume you have a plan to have your side bumpers properly supported per R31, and it just isn't visible yet? Front/back look to be OK, if the bumpers will fit within the volume.

*Disclaimer: This is CD in Week 4 of Build Season, not your first event, so any rules concerns and/or rulings are based on what is presented here, not the inspection at said first event. There is zero chance that "But CD said it was OK" will get you through inspection.
There are four inch wheels touching the ground, and what appears to be less than a 2 inch gap between those wheels and the member above them spanning the length of the robot. The bumper can likely touch that frame member along its entire length, fully meeting the rule. I don't see the issue here?
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Unread 04-02-2017, 00:11
WTFogland WTFogland is offline
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Re: pic: Team 5624 Steamworks Robot Teaser

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Originally Posted by ollien View Post

Whoops! Didn't look close enough in the picture to see if there was an omnimount underneath. Figured I would say something just in case though
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Unread 04-02-2017, 20:28
Lireal Lireal is offline
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Re: pic: Team 5624 Steamworks Robot Teaser

Quote:
Originally Posted by WTFogland View Post
Whoops! Didn't look close enough in the picture to see if there was an omnimount underneath. Figured I would say something just in case though
No, I don't think there is an omnimount. You can programmatically callibrate the Navx to work correctly in any configuration because it senses on all 3 axis of motion.
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Unread 05-02-2017, 00:32
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Re: pic: Team 5624 Steamworks Robot Teaser

Quote:
Originally Posted by Chris is me View Post
There are four inch wheels touching the ground, and what appears to be less than a 2 inch gap between those wheels and the member above them spanning the length of the robot. The bumper can likely touch that frame member along its entire length, fully meeting the rule. I don't see the issue here?
If the bumper touches the frame member, it's fine. I didn't see that on the first go-round. (Of course, if for some reason it doesn't, it's an easy enough fix with some strategically placed aluminum.)
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Unread 05-02-2017, 00:53
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Re: pic: Team 5624 Steamworks Robot Teaser

Could be very wrong when saying this, but I really don't think you're going to get 11fps out of this. 3cims on a 50:14 and a 44:30 reduction comes out to be a 5.24:1 overall ratio for a theoretical of 17.76fps or 14.39fps adjusted. That gearing is very fast and you could be prone to brown outs. I would do some testing and adjust your drive speed accordingly.
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Unread 05-02-2017, 05:23
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Re: pic: Team 5624 Steamworks Robot Teaser

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Originally Posted by Cash4587 View Post
Could be very wrong when saying this, but I really don't think you're going to get 11fps out of this. 3cims on a 50:14 and a 44:30 reduction comes out to be a 5.24:1 overall ratio for a theoretical of 17.76fps or 14.39fps adjusted. That gearing is very fast and you could be prone to brown outs. I would do some testing and adjust your drive speed accordingly.
That seems like a decent speed for a 6-CIM drive on a field as open as this one, but I agree current sensing is wise.
If you really are geared for 11fps, consider going up to at least 15 or 16fps to take advantage of the extra acceleration of 6 CIMs.

Your robot looks very cool! Is that a wooden polycord pulley on the bottom?
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