Re: Back for more..VEXpro 2014 Product Unveiling
 

That limits the versatility of it.

When selling a COTS part you have a different set of goals than a team.

It's not surprising that someone could make a 3 CIM w/ PTO gearbox smaller and lighter than vex, but it will likely only fit a few situations. Vex/WCP must sell a gearbox that will work for as many as possible. I feel they've done a great job o this.

Re: Back for more..VEXpro 2014 Product Unveiling
 

You're right. I just came from designing a 3 CIM PTO gearbox with a 22 tooth pulley for the PTO, so I was comparing with that, but I'd be willing to bet that 90% of teams purchasing that gearbox will end up using some type of versa hub product with it.

Re: Back for more..VEXpro 2014 Product Unveiling
 

So i was looking at the new wcp 3 cim (not the ball shifter) I saw that the two lower cims both drive one gear and then the third (top) cim drives the same gear but with a gear between, wouldnt this mean that the top cim is contributing less/more then the other two?

Re: Back for more..VEXpro 2014 Product Unveiling
 

No, the presence of the 30t idler does not affect the reduction or the overall contribution of the top CIM. See below,

2 CIM input ratio,
42 / 14 = 3

3rd CIM input ratio.
(30/14)*(42/30) = 3

At the 42t input gear, all of the CIM's have gone through the same reduction.

Hopefully this clears things up.

Re: Back for more..VEXpro 2014 Product Unveiling
 

Will CAD models be released for the traction wheel traction tires? I know my team is looking at those as an alternative to tread.

Re: Back for more..VEXpro 2014 Product Unveiling
 

Fixed, the CAD is now available here.

Re: Back for more..VEXpro 2014 Product Unveiling
 

Thank you!

Re: Back for more..VEXpro 2014 Product Unveiling
 

The VersaWheel page doesn't list a weight for either of the wheels; anyone know what the weight is?

Re: Back for more..VEXpro 2014 Product Unveiling
 

The weights listed here , when you select a wheel, are accurate to the CAD models. We will add the weights to the specs list for easier viewing shortly.

Re: Back for more..VEXpro 2014 Product Unveiling
 

I' getting a 404 clicking the link in your post.

Re: Back for more..VEXpro 2014 Product Unveiling
 

Fixed.

Re: Back for more..VEXpro 2014 Product Unveiling
 

Just a question specifically about the WCD gearbox with PTO offered a VexPro, from someone who has never used a PTO before.

What if you want to operate the PTO without running the wheels? I would think you would want to run the PTO while not moving in many more situations than you would want to while rolling.
Studying the CAD, I am fairly certain this is not possible.

Re: Back for more..VEXpro 2014 Product Unveiling
 

I'm not sure if this was intended with the design, but you should be able to find a 3-position cylinder to put on the bottom dog, letting you shift the drivetrain into a neutral gear (with the dog disengaged, between the two dog gears) when you want to engage the PTO.

Re: Back for more..VEXpro 2014 Product Unveiling
 

Oh yeah! I just remembered another thread wondering if there was a neutral for the ballshifter, and there was a link to the piston Im sure you are talking about. Thanks

Re: Back for more..VEXpro 2014 Product Unveiling
 

Killer products. Can wait to get my hands on some of them!