Team 254 Presents: Deadlift Technical Binder 2015
 

Team 254 Presents: Deadlift Technical Binder. The binder can be found here. If you have any questions or want more specifications, feel free to ask!

Re: Team 254 Deadlift Technical Binder 2015
 

Finally! Is code next?

Re: Team 254 Deadlift Technical Binder 2015
 

Code will be coming out soon!

Re: Team 254 Deadlift Technical Binder 2015
 

1.How are the carriages driven up and down? They appear to be attached to timing belts through some type of clip?

2. What type of bearings did you use for your elevator?

3. What types of belt did you use in your elevator?

4. How did you install your chain in the tubing?

5. Are you using the talon srx or victor SP?

Re: Team 254 Deadlift Technical Binder 2015
 

*effect

:-\

Re: Team 254 Deadlift Technical Binder 2015
 

This is a great resource! Thank you for releasing it.

Re: Team 254 Deadlift Technical Binder 2015
 

As always, the design binder is amazing.
I've got a few questions about the design process and the robot itself.

From what I can see, you guys have almost all of the robot in CAD before you start making parts for systems other than drive. At what point in the season do you finish drivebase CAD and the rest of the CAD? How many people do you have on your CAD team, and how long do they work to get it done?

Finally, does your team use any type of version control for SolidWorks, either EPDM or workgroup? If so, what type of server/computer does it run on?

It looks like you had no way to adjust chain tension this year. Would you recommend running a chain in tube drive system with no tensioners in a more aggressive game, or would you probably switch back to an adjustable and accessible design?

I've also seen your team run 3mm pitch pulleys off the output shaft of the RS-775 motors many times. Are these pulleys you make yourselves with a press fit for the motor shaft, or are they something else?

What material was used for the friction brakes?

Re: Team 254 Deadlift Technical Binder 2015
 

When you release the code will the simulator also be released? I'd love to see it.

Re: Team 254 Deadlift Technical Binder 2015
 

Thank You Team 254! Simple and effective process.

Re: Team 254 Deadlift Technical Binder 2015
 

Is it just me, or did one of 254's mentors post a reply, only for it to disappear? :ahh:

Re: Team 254 Deadlift Technical Binder 2015
 

If you guys are willing, I'd love a more in depth overview of the brake system used.

Re: Team 254 Deadlift Technical Binder 2015
 

I did. Alex will add to what I had. He had some additional insight specific to the assembly and maintenance.

Re: Team 254 Deadlift Technical Binder 2015
 

If I recall correctly from my visit to their pit in St. Louis, it's dead simple. Literally just metal on metal contact when the piston is engaged. The pressure and friction are enough to stop the elevator.

Re: Team 254 Deadlift Technical Binder 2015
 

When I looked at it, it looked like there was an odd rough brown material, not something like aluminum on aluminum.

Re: Team 254 Deadlift Technical Binder 2015
 

We used 410 Stainless Steel to make a "disc" that pushed against a High Friction Molded Brake & Clutch Lining Sheet. It works just like a disc brake, except the forces are applied axially about the point of rotation.

As you can see, the disc spins and slides on a 3/8" hex shaft. This allowed us to install the disc brake outside of the gearbox. It was the smallest solution we could come up with.

See below: