Drive train help.

[Ether]

Originally Posted by RogerR

its spelled *ya'll*, not *y'all*

Is that some kind of inside joke?

[D.Allred]

Originally Posted by Ether

Is that some kind of inside joke?

Warning - thread derailing comment.

It's y'all. Sometimes I incorrectly use "all y'all" to emphasize the plural form.

http://writingexplained.org/yall-or-ya-ll-difference

[JesseK]

We've done this before. It's pretty fun. Let's assume that you have some leftover parts from the season (CIMs, AM or VP gearboxes, a few sprockets (perhaps mis-matched) and some chain.

Make sure the wood for the frame is straight, and that it's a hard wood rather than pine. Ok, pine can take a little bit of punishment, but in my experience when you start adding weight on top of the chassis and then you do crazy things, the wood screws which hold the frame together start to strip out.

You can then cantilever your wheels via 3/8" or 1/2" dead-axle bolts through the 2x4 frame, and chain a gearbox to the wheels. Use one of the calculators in CD-media to figure out which motor, gearbox and chain ratio to use. You can get away with chain-driving only one set of wheels, depending on what surface this chassis will roll around on. Just be aware that the heavier the frisbee shooter, the more likely you'll want to drive all wheels since even hard woods will flex while cornering at speed.

Good luck

[messer5740]

I don't want to make a new thread for it pertains to drive trains, but can someone clarify what a west coast drive is? I know that West Clast Products are a common distributor of FRC parts, and I know that they have Vex Robotics versa frame, but is there something special that is different from the kit of parts chassis?

[Cothron Theiss]

Originally Posted by messer5740

I don't want to make a new thread for it pertains to drive trains, but can someone clarify what a west coast drive is? I know that West Clast Products are a common distributor of FRC parts, and I know that they have Vex Robotics versa frame, but is there something special that is different from the kit of parts chassis?

https://www.chiefdelphi.com/forums/s...st+coast+drive


This is one of the first results when you search for threads titled "West Coast Drive." It should answer most if not all of your questions.

[DaveL]

As a summer project, we built 3 wood robots using some scrape plywood. It measured 3/4" thick, which meant it was likely called 1".
I think the side were 3" high by 28" long.

Our bots had the same side rails at an aluminum bot, but in the corners we bolted a 1-1/2" square piece of wood. For the third bot we used some scrape aluminum "L" brackets instead of the wood to save space in the corners. The bottom plate was very thin (5mm) plywood with glued on bits of wood. During a high speed head on collision with another wood bot (using only 1 pool noodle for protection) the bottom plate broke its glue joint.

Actually the glue held, but the wood veneer was ripped off. Going forward, I would use more angle aluminum brackets. We made these from scraps of aluminum box sections by cutting them in half (on the diagonal looking from the open end)

Another thing we did was to use chain and mounted the transmission so it could slide up. That way we were able to tension the chains by raising the transmission. The slide was really just slots for the bolts to slide within.

Dave