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Saturday To-Do list for the Tank-Chassis

Posted: January 28th, 2010, 10:45 pm
by Logan
To do list for Saturday, seeing as we have gotten nothing done on the tank-chassis these past two build days.

There are two different types of bearings (shielded and non-shielded) inside the wheels that we're using: the shielded type protrudes out 1/16th of an inch more than the non-shielded, so we need to account for that in our PVC spacers.

There are 4 wheels with non-shielded bearings and 6 wheels with shielded bearings.

We need four sets of PVC spacers that accommodate the 1/16th inch less.

Total measurements/parts needed were:

6x 1 inch spacer
6x 1 and 1/4 inch spacer
4x 1 and 1/16th inch spacer
4x 1 and 5/16th inch spacer

We also need to finish putting the spacers+sprockets on the wheels. If I recall correctly, there are some unused 32teeth sprockets and spacers on the C-base chassis.

Unfortunately, I think the only people that know the chaining plan for this bot are me, Tanner, Sunny, and Ryan.

I cannot CADD. >_>. Enjoy this Microsoft Paint drawing (which incidentally, is not to scale... sorry.)

Image

Dark gray = "Inside chain"
Light gray = "Outside chain"
Green = Chain from Toughbox to center wheel
Red Circles = Idler Sprockets (Need two)
Blue box = Toughbox
Black Circles = 32 teeth Sprockets

Sorry for inflicting this pain-in-the-butt-to-chain chain onto you guys. On the plus side, you can be relatively generous on the chain lengths as long as you place the idler sprockets accordingly. I will probably be back from my GHP interview at 1 PM... MSH, people. (Make "Stuff" Happen)

Re: Saturday To-Do list for the Tank-Chassis

Posted: January 28th, 2010, 10:57 pm
by Tanner
*has strong urge to see how cool the chaining looks in Inventor*

Looks like Saturday will be fun. I'll make sure to print this out before then so we have a little "to-do" list.

-Tanner

Re: Saturday To-Do list for the Tank-Chassis

Posted: January 28th, 2010, 11:01 pm
by Logan
If you are by any chance to CAD this... (which would make me really happy), see if you can mess around with the chain and the idlers so that at least 120 degrees of the chain are wrapped around the center sprocket.

Re: Saturday To-Do list for the Tank-Chassis

Posted: January 29th, 2010, 7:05 am
by Tanner
Logan wrote:If you are by any chance to CAD this... (which would make me really happy), see if you can mess around with the chain and the idlers so that at least 120 degrees of the chain are wrapped around the center sprocket.


I could try. You planning on putting the idlers on bearing blocks (or something of the sort)?

I know you changed some things to the robot, but I think I should be able to look at the pictures and deduct the changes in distance. Plus I don't think it would affect too much.

-Tanner

Re: Saturday To-Do list for the Tank-Chassis

Posted: January 29th, 2010, 11:23 pm
by ptwortman
i can chain it for you if you'd like