DR4B Chassis

[Sage]

What would I use to make it? 1x1x25 c-bars? Does anybody happen to have an idea for a list of materials or a visual :')

[TimmyOsborne]

To make a dr4b? or a drive base? or both?

[Sage]

Both, but I was aiming towards a drive base.

[TimmyOsborne]

So you can attach a dr4b to Most drivebases. I use the longest one the 35. So 35ling and 35 wide. If you look in the search bar for quality drive you will find some really nice ones for drives at least set up by @Xenon27 also for your dr4b look at 333a double reverse bar tutorial also in the search bar walks you by step-by-step.

DR4B Tutorial by 333A

It is that time of the season when beginner teams are searching for resources to assist them with building their first DR4B lift, and senior teams are looking for new ways to build taller, stronger, and more stable DR4Bs, improving on their designs from past seasons. Hence, we decided to make this DR4B Tutorial by 333A. In our guide, you will learn how Double Reverse Four Bar (DR4B) works. New teams will find step-by-step instructions how to build a good DR4B. It explains the main factors of …

Designing Another Quality Drive

A topic I created almost a year ago, designing a quality drive, has been a relatively frequently used resource. While I believe it’s still relevant as a resource, I’ve learned much since then and I felt it could use an update. So here we go, designing another quality drive. Quality Drive Version II: [Quality Drive v2.1 Isometric White]

Design Process

Here I’ll be detailing the process of designing this particular drive, and explain why it is how it is. Size I chose to make this particular driv…

Designing a Quality Drive

Designing a Quality Drive A drive is the foundation of any robot, and as such it is crucial to have a quality drive if you want to have a quality robot. Yet, many newer teams struggle significantly with making a solid drive, and I’ve realized that each time someone asks for help or feedback on their drive, we have to re-explain how to properly construct a drive each time. This makes me think that the vex forum would greatly benefit from a topic that details how to make a proper drive. Using C…

[Sage]

Thank you!
(20 chars)

[rrodgers]

Thank you for sharing your design and process. You have created powerful starting points of discussion with young teams. May I ask, what is a box bolt? Is that a shoulder screw?

[Loco_25146A]

A shoulder screw is a screw with a shoulder in place of the threads at the top of the screw. This shoulder is just a little less wide than the holes in the vex metal. This makes it so any 2 pieces of metal you screw together will be aligned in coordination with that hole and you won’t have to do it. A box bolt is when you take a long screw and put it through a c channel to the other side with spacers on it. So it stops the c channel from conforming inward or outward, thus giving it more strength.