28-01-2014 12:02

TheFrozenSlink

Re: pic: How 2415 is rolling for 2014

You might want to add a center drop to what, the versa blocks come pre made with offset holes, by flipping the blocks on the outside wheels so that the flat part is on top, you can add an (IIRC) 1/8th in center drop.

28-01-2014 12:04

Brandon Holley

Re: pic: How 2415 is rolling for 2014

What is this chain nonsense on a 2415 bot?? :-P

-Brando

28-01-2014 12:34

Richard Wallace

Re: pic: How 2415 is rolling for 2014

WCD in a box! Who'da thunkit!

Looking good so far, don't forget the bumper brackets.

28-01-2014 12:57

JohnSchneider

Re: pic: How 2415 is rolling for 2014

West coast, best coast.

28-01-2014 13:48

Anupam Goli

Re: pic: How 2415 is rolling for 2014

Quote:

Originally Posted by TheFrozenSlink You might want to add a center drop to what, the versa blocks come pre made with offset holes, by flipping the blocks on the outside wheels so that the flat part is on top, you can add an (IIRC) 1/8th in center drop.

28-01-2014 13:55

Michael Corsetto

Re: pic: How 2415 is rolling for 2014

Curious, why the decision to run chain on the outside of your side rails?

Looks beautiful, great work!

-Mike

28-01-2014 14:14

Richard Wallace

Re: pic: How 2415 is rolling for 2014

Quote:

Originally Posted by Michael Corsetto Curious, why the decision to run chain on the outside of your side rails?

28-01-2014 14:18

TD78

Re: pic: How 2415 is rolling for 2014

Quote:

Originally Posted by Richard Wallace In a contest between a stationary digital sidecar and a (suddenly loose) length of #25 chain moving at >12 fps, which one wins?

28-01-2014 14:24

wireties

Re: pic: How 2415 is rolling for 2014

Quote:

Originally Posted by Michael Corsetto Curious, why the decision to run chain on the outside of your side rails? Looks beautiful, great work! -Mike

28-01-2014 14:24

rcmolloy

Re: pic: How 2415 is rolling for 2014

Second the question that Michael brought up on the side rails.

I'm curious to see how the bearings hold up due to the the larger cantilevered lever arm they are sitting on. If you already calculated out the reactionary forces on the bearings due to the robot weight and deemed it good then disregard!

Quote:

Originally Posted by Richard Wallace In a contest between a stationary digital sidecar and a (suddenly loose) length of #25 chain moving at >12 fps, which one wins?

28-01-2014 14:45

Arpan

Re: pic: How 2415 is rolling for 2014

Quote:

Originally Posted by wireties Ditto - looks great! Are you nervous having the cantilevered portion of the shaft longer than is WCD-typical? And now both forces from the wheels and the chain are working on the extended (from the frame) portion of the shaft. Sorry if this is a silly question - I'm a goofy EE, its all transitors, 1s and 0s to me.

28-01-2014 15:01

JeffersonMartin

Re: pic: How 2415 is rolling for 2014

Still see that vacuum sneaking into the photo.

28-01-2014 15:04

Kellen Hill

Re: pic: How 2415 is rolling for 2014

Quote:

Originally Posted by JeffersonMartin Still see that vacuum sneaking into he photo.

28-01-2014 15:39

sdcantrell56

Re: pic: How 2415 is rolling for 2014

Quote:

Originally Posted by rcmolloy Second the question that Michael brought up on the side rails. I'm curious to see how the bearings hold up due to the the larger cantilevered lever arm they are sitting on. If you already calculated out the reactionary forces on the bearings due to the robot weight and deemed it good then disregard! Chain guards seem to be a plausible way to help the DSC out

28-01-2014 15:53

magnets

Re: pic: How 2415 is rolling for 2014

Quote:

Originally Posted by wireties Ditto - looks great! Are you nervous having the cantilevered portion of the shaft longer than is WCD-typical? And now both forces from the wheels and the chain are working on the extended (from the frame) portion of the shaft. Sorry if this is a silly question - I'm a goofy EE, its all transitors, 1s and 0s to me.

28-01-2014 22:01

Akash Rastogi

Re: pic: How 2415 is rolling for 2014

Quote:

Originally Posted by sdcantrell56 We ran the calculations. The axles will be perfectly fine. Chain on the outside is to free up space on the inside of the robot and easier servicing. We have run belt the past 4 years and so far I am much much happier going back to chain, particularly with the versa bearing blocks and cams

28-01-2014 22:39

Andrew Y.

Re: pic: How 2415 is rolling for 2014

Sean demanded the chain be cleaned in a ultrasonic bath so his hipster clothes wont get dirty. Its the only reason we ever did belt.

28-01-2014 23:01

Andrew Schreiber

Re: pic: How 2415 is rolling for 2014

Quote:

Originally Posted by Andrew Y. Sean demanded the chain be cleaned in a ultrasonic bath so his hipster clothes wont get dirty. Its the only reason we ever did belt.